The construction process in Sweden: a step-by-step guide

The Swedish construction process at a glance

The construction process in Sweden — byggprocessen — is the chain of decisions, studies, documents and works that takes a project from first idea to a finished building in use. In outline it looks the same for a preschool, an office block or an apartment building, even if the scale differs enormously. If you have delivered projects in the UK, the US or elsewhere in the EU, most of the stages will feel familiar. What differs is who checks what, which documents carry legal weight, and how the contracts allocate risk.

Two rule systems run side by side through every Swedish project, and keeping them apart is the single most useful thing a newcomer can learn. The first is public law: the Planning and Building Act — plan- och bygglagen (PBL, 2010:900) — with the Planning and Building Ordinance (PBF, 2011:338) and Boverket’s building regulations. This governs the relationship between the developer and the municipality. The second is private law: the contracts between client, consultants and contractors, which in practice almost always rely on the industry’s standard conditions AB 04, ABT 06 and ABK 09.

This guide follows the stages in their usual order. In reality they overlap — design starts before the plan is binding, and the permit is sought while the scheme design is being finished. Knowing what must be in place before the next step is the core of managing a Swedish project.

The stages of the process

• **Early stages** — need, feasibility study, site selection, land acquisition, cost estimate and site analysis. This is where you find out whether the project is viable at all. Read more.
• **Detailed plan (detaljplan)** — the municipal zoning process under PBL chapter 5, needed when land must be zoned or the existing plan does not allow what you want to build. Read more.
• **Brief and design** — building programme, scheme design (systemhandling) and construction documents (bygghandling); structure, fire, moisture and building services are designed. Read more.
• **Building permit (bygglov)** — application, permit review, technical consultation, control plan and start notice. Read more.
• **Procurement** — choice of contract type and payment form, tender documents, bids and contract. Read more.
• **Construction** — site set-up, health and safety, programme, self-inspection, variations and site meetings. Read more.
• **Inspection and completion certificate** — contractual inspections under AB 04/ABT 06, the final consultation and the municipality’s completion certificate (slutbesked). Read more.
• **Operation and warranty** — warranty period, warranty inspection, operation and maintenance, and lessons learned. Read more.

Who is involved

• **Byggherre (developer/client)** — the party that, on its own account, carries out or commissions the building work. The byggherre carries the public-law responsibility under PBL for ensuring the requirements are met, and as client is the contracting party towards consultants and contractors. It is a broader concept than the UK “client” or the US “owner”: whoever orders the works holds the statutory duties, and they cannot be contracted away to the builder. The byggherre is often represented by a project manager (projektledare).
• **Designers (projektörer)** — architect, structural engineer (konstruktör), building services, fire, geotechnical and acoustic consultants, coordinated by a design manager (projekteringsledare).
• **Contractors (entreprenörer)** — the main contractor and its subcontractors (underentreprenörer, UE) who carry out the work. On site, production is led by a site manager (platschef) with supervisors (arbetsledare).
• **The municipal building committee (byggnadsnämnd)** — reviews permit applications and notifications, holds the technical consultation, approves the control plan and issues start and completion notices. The municipality is also responsible for zoning, through the municipal council or a committee with delegated authority.
• **Kontrollansvarig (KA, certified quality controller)** — a certified individual appointed by the byggherre to help draw up the control plan and monitor that it is followed. There is no exact equivalent in UK or US practice; see the section on the building permit.
• **BAS-P and BAS-U** — building work environment coordinators for design and for execution, roughly comparable to the principal designer and principal contractor under the UK CDM Regulations, or the coordinators of the EU Construction Sites Directive.

For a wider picture of how the industry is organised — the companies, standards, unions and what foreign firms need to register — read our companion guide to the Swedish construction industry.

Early stages: need, feasibility, land and site analysis

The early stages cost little money but have expensive consequences. This is where you decide where the building will stand, how big it will be, what it may cost and which risks the ground carries. The old rule that your ability to influence the outcome is greatest when the cost of change is lowest still holds: a decision that takes an afternoon in the feasibility study can cost millions of kronor to change during construction.

Need and feasibility study

The feasibility study (förstudie) turns a need into something testable: functions, areas, quality, timing and budget. Areas are usually expressed in BTA (gross floor area) and BOA (residential usable floor area); these do not map one-to-one onto UK or US conventions, so check them before comparing cost benchmarks.

It also tests alternatives — existing premises, refurbishment versus new build (including climate impact), other plots — and ends in a decision document the byggherre uses to approve or stop the project.

Site selection and land acquisition

Location drives almost everything else: zoning, foundations, traffic, noise and cost. Check the municipality’s comprehensive plan (översiktsplan) and any existing detailed plan early, and whether the land lies outside a zoned area. Lantmäteriet, the national mapping and cadastral authority, holds the records on property boundaries, ownership, easements, utility rights and registrations — all of which affect both what can be built and how the land can be acquired.

Land is bought either directly from a private owner or through a land allocation (markanvisning) from the municipality, followed by a development or purchase agreement that apportions the costs of streets, utilities and public spaces. Subdivisions, adjustments and new easements require a cadastral procedure (lantmäteriförrättning), which takes time and often requires a detailed plan that has gained legal force.

Budget and cost estimate

The early estimate is based on key ratios — kronor per square metre of BTA, per apartment or per pupil place — and on experience from earlier projects. It must cover more than the construction contract: land, connection charges, authority fees, design, client-side costs, financing, contingency and VAT where relevant. A cost estimator (kalkylingenjör) refines the estimate as the documents become more detailed — from key ratios to an elemental estimate, and later to a bill of quantities (mängdförteckning) and unit rates (à-priser).

An estimate without an explicit allowance for risk and the unforeseen is, in practice, an underestimate. Present a range rather than a single figure, update it at every stage gate, and pair it with an early risk analysis covering ground, authorities, market and time — our guide to construction risk assessment shows a practical method.

Site analysis: ground conditions, geotechnics and risk

The site analysis describes the plot’s conditions: topography, vegetation, sunlight, existing buildings, heritage values, traffic, noise, stormwater and flood risk. Its technical core is the ground. A geotechnical investigation — soundings, sampling and groundwater monitoring — shows whether the ground can carry the building, whether there is clay with a risk of settlement or landslide, where the bedrock lies and how the groundwater behaves. The result can decide the foundation method and with it the whole budget.

Also investigate early: contaminated land (especially former industrial sites), radon, stormwater and cloudbursts, ancient monuments, buried services and protected trees. Several need the municipal environmental department or county administrative board and can take months.

Detailed plan (detaljplan): zoning under PBL

A detaljplan (detailed development plan) is the municipality’s legally binding decision on how land and water in an area may be used and built on — what, how high, how dense and where — and the yardstick for the permit review. It is roughly the counterpart of US zoning or a UK local plan allocation, with one key difference: the municipality has a planning monopoly (planmonopol). Only it can adopt a plan, and nobody can demand one. The rules are in PBL chapter 5; Boverket publishes an English overview of the detailed planning process.

When is a new detailed plan required?

Under PBL, the location and use of a new building must as a rule be tested in a detailed plan when it concerns new coherent development, a single building with significant impact on its surroundings, or development where demand for land is high. If a plan already exists but the project conflicts with it — wrong use, too high, too much building area — a plan amendment or a new plan is normally needed. Minor deviations can sometimes be approved directly in the building permit, but this is a narrow exception and should not be relied on as a strategy.

Outside areas covered by a detailed plan, the location is instead tested in the building permit itself or through an advance ruling (förhandsbesked), which tells you whether a development can be permitted on the site before you spend money on full design.

Planning decision (planbesked)

If you want the municipality to draw up or amend a detailed plan, you apply for a planbesked (planning decision). The request must be in writing, and the municipality must give its planbesked within four months unless it and the applicant agree otherwise (PBL chapter 5, section 4). A positive planbesked means the municipality intends to start planning work and says when it expects to finish — it does not guarantee that a plan will be adopted, or what it will contain. A planbesked cannot be appealed, whether it is positive or negative.

The procedures: standard, extended and limited

The standard procedure is the main rule. The extended procedure applies when the proposal conflicts with the comprehensive plan or the county administrative board’s review statement, is of significant public interest or may have significant environmental impact. If everyone consulted approves the proposal, the review stage can be skipped (in practice called a limited standard procedure). A coordinated procedure is used when the plan is coordinated with a permit under the Environmental Code or with a road or railway plan.

• **Consultation (samråd)** — the municipality consults the county administrative board, Lantmäteriet, affected property owners and others on a draft plan.
• **Public notice (kungörelse)** — extended and coordinated procedures only; the proposal is announced on the municipality’s official notice board and in a local newspaper.
• **Review (granskning)** — the revised proposal is made available for review: at least two weeks in the standard procedure, at least three weeks in the extended procedure, and at least 30 days if the plan can be expected to have a significant environmental impact (chapter 5, section 18). Comments are compiled in a review statement.
• **Adoption (antagande)** — by the municipal council or, by delegation, the building committee or executive board.
• **Legal force (laga kraft)** — the plan becomes legally binding if it is not appealed within three weeks of the decision being announced on the municipality’s notice board, or once any appeal has been finally determined. Anyone wishing to appeal must as a rule have submitted written comments during the planning process.

Timescales vary widely. A simple amendment can take a few months; a large, appealed plan can take several years. Scheduling construction start against a plan that has not yet gained legal force is one of the most common causes of programme slippage in Sweden.

Plan documents and plan provisions

A detailed plan consists of a plan map with provisions (plankarta med bestämmelser) and a plan description (planbeskrivning). Supporting studies usually include geotechnics, noise, stormwater, traffic, an environmental impact assessment where significant impact can be expected, and a property register. The plan provisions are what is legally binding; the plan description explains purpose and implementation but is not binding in the same way.

• **Use provisions** — for example housing (B), centre (C), school (S), industry (J) or public space such as streets and parks.
• **Property provisions** — maximum height or ridge height, building rights or plot ratio, design, land that may not be built on (punktprickad mark) or may only carry ancillary buildings (korsmark), and heritage protection.
• **Implementation period (genomförandetid)** — between 5 and 15 years (chapter 4, section 21). During this period the property owner has guaranteed building rights; the municipality may in principle not change the plan against the owner’s will.
• **Administrative provisions** — for example extended or reduced permit requirements, or conditions for the start notice.

Brief and design: from programme to construction documents

During design (projektering) the need becomes drawings, specifications and calculations that can be built from — and this is where most errors that later prove expensive on site arise. The client is responsible for design in an utförandeentreprenad (build-only contract), the contractor in a totalentreprenad (design-and-build contract), but the stages are the same.

Building programme and performance specification

The building programme (byggnadsprogram) sets out areas, rooms, adjacencies, functional and technical requirements and quality level. In design and build it often becomes a rambeskrivning — a performance specification that leaves the solution to the contractor. The clearer the functional requirements, the fewer disputes about what was ordered.

Scheme design (systemhandling)

In the systemhandling (scheme design, roughly RIBA Stage 3 or US design development) the main systems are chosen — concrete or timber frame, cast in situ or precast, district heating or heat pump — along with envelope, services, fire strategy and layout. It often underpins the permit application and a design-and-build tender.

Construction documents (bygghandling)

The bygghandling (construction documents, roughly RIBA Stage 4 or US construction documents) details everything needed to build: drawings per discipline, technical specifications (tekniska beskrivningar), calculations and schedules, with a drawing register (ritningsförteckning) tracking revisions. In a build-only contract it becomes part of the tender documents (förfrågningsunderlag).

Design management and review

The design manager coordinates the consultants: design programme, meetings, scope boundaries, cross-discipline review and deliveries. The hard part is the interfaces — that the ventilation duct fits in the floor void and that fire compartment boundaries match on the architectural and HVAC drawings.

Build review into the programme with time to make corrections — a review in the week before the invitation to tender rarely changes the documents. Our guide to AI for construction document management covers how structured review of specifications and drawings can be supported digitally.

BIM, CoClass and AMA

Most larger Swedish projects are designed in BIM, with discipline models federated for clash detection. The shared structure comes from the classification system CoClass (successor to BSAB 96) and from AMA, published by Svensk Byggtjänst, for specifications.

AMA deserves special attention from foreign designers and contractors because it has no direct international equivalent. It is a reference work of codes and headings — AMA Hus (buildings), AMA Anläggning (civil works), AMA VVS & Kyla (plumbing, HVAC and refrigeration), AMA EL (electrical) and AMA AF for administrative provisions — that the project’s technical specification refers to. The idea resembles a UK NBS or US MasterFormat specification, but the AMA texts themselves carry the default requirements on materials and workmanship, so a short project specification can still be unambiguous — provided everyone has the referenced AMA edition.

Structure, fire and moisture

The structural engineer designs the load-bearing structure under Boverket’s regulations on load-bearing capacity, stability and durability — BFS 2024:6, which replaced EKS — together with the Eurocodes. Loads from self-weight, imposed load, snow and wind are calculated and combined. Consequence class (säkerhetsklass) and geotechnical category are decided early. Eurocode users will recognise the framework; the Swedish national choices are what differ.

Fire safety is designed under BFS 2024:7 and documented in a fire safety design report (brandskyddsbeskrivning): building class, occupancy class, compartments, escape and fire resistance. Moisture safety design (fuktsäkerhetsprojektering), often following the industry standard ByggaF, covers materials, drying times, weather protection and critical details — and has to follow through into construction, or it is only paper.

Note that the building regulations have been replaced. EKS (BFS 2011:10) was repealed on 1 July 2025 and replaced by BFS 2024:6, and BBR (BFS 2011:6) has been repealed in full since 1 October 2026. Energy efficiency and thermal insulation are now regulated in a separate regulation, BFS 2026:9. The other areas are in the BFS 2024 series (fire 2024:7, hygiene, health and environment 2024:8, safety in use 2024:9, noise 2024:10, suitability of dwellings 2024:11, accessibility 2024:12, plots 2024:13). Projects started under the transitional provisions may still be assessed against BBR and EKS, so always check which rule set the permit and start notice are based on. Boverket has an English overview of the building regulations, and the full list of regulations is on our building regulations hub (in Swedish).

• Freeze the programme before scheme design starts. Changes to the programme during the construction-documents stage are the most common cause of redesign.
• Do an early carbon calculation while material choices can still be influenced; a climate declaration will be required before completion.
• Check U-values and energy performance continuously, not just at the end. Our U-value calculator is enough for quick checks.

Building permit, notification, technical consultation and start notice

The bygglov (building permit) is the building committee’s assessment of whether a development is suitable on the site: whether it complies with the detailed plan, meets the design requirements and fits its surroundings. The technical check — that the building meets Boverket’s building regulations — happens after the permit, through the technical consultation, the control plan and the start notice. This split is fundamental to understanding Swedish building control, and it is the point where Sweden differs most from many other countries.

How Swedish building control differs

In the UK, building control bodies check plans and inspect work against the Building Regulations; in much of the US, the permit includes a code plan check and staged municipal inspections. In Sweden the municipality does not normally check your structural calculations or inspect each stage. The byggherre must show compliance: the control plan sets out which checks are made and by whom, a certified kontrollansvarig (KA) monitors it, and the municipality reviews the documentation and, where there has been a technical consultation, normally makes at least one site visit. Responsibility sits squarely with the developer and its team.

Permit, notification or exempt?

New construction and extensions require a building permit as the main rule (PBL chapter 9, sections 3 and 9). So do certain other alterations: putting a building to a substantially different use, fitting out an additional dwelling and — within a detailed plan — changing the façade of buildings other than detached and semi-detached houses and ancillary buildings, where the façade or roof faces a public space. Some technical measures instead require a notification (anmälan) under PBF chapter 6, section 1: demolishing a building with a footprint over 50 m² where no demolition permit is needed, alterations that significantly affect the load-bearing structure or fire protection, installing or significantly altering a lift, fireplace, flue, ventilation or water and sewerage, and wind turbines. A notification involves no suitability assessment, but a technical consultation, control plan and start notice may still be required.

On 1 December 2025 PBL chapter 9 was rewritten (Act 2025:974). Friggebod and attefallshus (small permit-free outbuildings and annexes) no longer exist as legal terms; the act now speaks of komplementbyggnad (ancillary building) and komplementbostadshus (ancillary dwelling), and permit requirements for structures other than buildings have moved from PBF into PBL. Within a detailed plan, an ancillary building or ancillary dwelling may be built without a permit if its footprint is at most 30.0 m², its ridge height at most 4.0 m and the permit-exempt ancillary buildings on the plot total at most 45.0 m²; outside a detailed plan the limits are 50.0 m², 4.5 m and 65.0 m² (chapter 9, sections 4 and 5). The exemptions have limits: closer than 4.5 m to the plot boundary, or 30.0 m from the centre of a railway track, a permit is still required unless the neighbours affected have consented in writing, and permit requirements are extended near total-defence installations and for particularly valuable buildings and areas. An exempt ancillary dwelling may still need a notification, because installing a fireplace, ventilation or water and sewerage is notifiable. Cases started before 1 December 2025 follow the old rules. Always check the current position with Boverket and the municipality before concluding that something is permit-exempt.

What goes into the application

Which documents are required depends on the development, and the building committee decides in each case. For a new building they usually include:

• An application form or e-service with details of the property, applicant and development.
• A site plan (situationsplan) drawn on a new-build map (nybyggnadskarta), showing the building’s position, distances to boundaries, levels, access and parking.
• Floor plans, elevations and sections, to scale and professionally drawn.
• A ground drawing (markritning) when ground levels change or the plot is to be landscaped.
• A proposed kontrollansvarig (where one is required), and often an early fire safety report or accessibility statement.

Applications, drawings and decisions are in Swedish. Many municipalities have English information pages, but the formal process runs in Swedish, so budget for translation or a Swedish-speaking permit coordinator. Our building permit hub (in Swedish) links to municipality-specific information.

Processing time and the ten-week rule

The building committee must decide on permit and advance-ruling applications within ten weeks of receipt (PBL chapter 9, section 99) (or of supplementary information the applicant submitted on its own initiative). If the committee, within three weeks, orders the applicant to complete an incomplete application, the clock starts only when the gaps are filled. The period may be extended once by at most ten weeks. For notifications it is four weeks, extendable once by at most four weeks (PBF chapter 6, section 5).

If the committee misses the deadline, the fee must be reduced by one fifth for each week or part of a week, so no fee at all is charged after five weeks’ delay (PBL chapter 12, section 8 a). The same applies to notifications. The fee is not reduced, however, if the committee has decided under chapter 9, section 102 to defer its decision — for example until a shoreline protection exemption has been decided.

A permit decision is announced on the municipality’s official notice board (anslagstavla) and sent to neighbours and other parties concerned (chapter 9, section 109). Since 1 December 2025 a building, demolition or site permit applies immediately, even before it has gained legal force (chapter 9, section 114). The committee must postpone it until legal force only where implementation risks irreparable harm to natural or cultural values or to total-defence interests. You still may not start until you have a start notice, and building before the permit has gained legal force is at your own risk: if it is overturned on appeal, restoration may be required. A permit lapses if work has not started within two years and been completed within five years of the decision gaining legal force (chapter 9, section 115).

Technical consultation and control plan

The technical consultation (tekniskt samråd) brings together the byggherre, the KA and the building committee to go through how the work will be planned and organised, the proposed control plan (kontrollplan) and waste management plan, the need for expert inspections and site visits, and which documents the committee needs before the start notice (PBL chapter 10, section 19). The committee calls one when a KA is required, when the byggherre asks for it, or unless it is obviously unnecessary. The draft plans and technical documents — typically structural documentation, the fire safety report, plumbing and ventilation documents and an energy statement — must be submitted at least five working days before the meeting unless the committee sets another time.

The control plan states which checks will be carried out, against which requirements, by whom and how, which notifications must be made to the committee, and which site visits it should make and when (chapter 10, section 6). It also shows what is covered by the byggherre’s documented self-inspection and what needs a certified expert (sakkunnig). On 1 July 2026 PBL chapter 10 was amended (Act 2026:712). The byggherre must now also have a waste management plan (avfallshanteringsplan) covering which building products can be reused and how waste — including hazardous substances — will be handled (chapter 10, section 8 a); the committee confirms it in the start notice together with the control plan. The amendment also introduced the byggbedömare (building assessor): a certified company with a quality management system that can be used for the permit review and control of certain new buildings, in which case no control plan is needed for that part. Which buildings qualify is set out in regulations, so check the current position with Boverket. Where the permit application or notification was made before 1 July 2026, the control-plan requirement applies in its earlier wording.

The control plan links to the contractor’s self-inspections (egenkontroller), much like an inspection and test plan; see our guide to a construction quality control plan.

The kontrollansvarig (KA)

For most permit and notification measures the byggherre must appoint a kontrollansvarig (KA, certified quality controller). The KA must be certified under Boverket’s regulations (BFS 2011:14, last amended by BFS 2025:4) and be independent of whoever carries out the work. The KA helps draw up the control plan, makes sure it is followed, attends the technical consultation and site visits, and submits a statement before the completion certificate (chapter 10, section 11). Since 1 July 2026 the KA must also help identify waste and reusable building products. The KA is neither an authority inspector nor a client’s clerk of works — it is a statutory independent role paid for by the developer, and Swedish certification is required.

Start notice (startbesked)

No building work that requires a permit or notification may begin before the building committee has issued a startbesked (start notice). The start notice approves the control plan, and the committee states which documents must be submitted before the completion certificate. Building without a start notice can result in a byggsanktionsavgift (building penalty fee) — a financial penalty charged regardless of whether the work could otherwise have been approved. The start notice can in some cases be issued in stages, for example for groundworks and foundations before the whole structure has been designed.

Common reasons for requests for more information

• Drawings not to scale, without dimensions, or inconsistent with each other (elevation and section showing different heights).
• A site plan not drawn on a current new-build map, or missing distances to boundaries and levels.
• No proposed kontrollansvarig, or a KA without the right certification level.

Procurement: contract types, payment forms and standard conditions

Procurement decides who builds, who is responsible for what and how money flows. Two choices are fundamental and should not be confused: the contract type (who is responsible for design and how the contracts are organised) and the payment form (how the contractor is paid). Every combination is possible — a design-and-build contract on cost reimbursement or a build-only contract at a fixed price.

Contract types (entreprenadformer)

• **Utförandeentreprenad (build-only contract)** — the client designs; the contractor builds to the client’s documents and answers for workmanship, not design. Comparable to design-bid-build. Standard conditions: AB 04.
• **Totalentreprenad (design-and-build contract)** — the contractor designs and builds to the client’s functional requirements, giving single-point responsibility but less client control. Standard conditions: ABT 06.
• **Generalentreprenad (general contract)** — a build-only contract in which one main contractor takes the whole execution and engages its own subcontractors. The client has one contract for the works.
• **Delad entreprenad (split/multiple-prime contracting)** — the client contracts building, electrical, plumbing and ventilation separately and coordinates them itself or through one of them. More control, sometimes a lower price, but it needs a strong client organisation.

Payment forms (ersättningsformer)

• **Fixed price (fast pris)** — the contractor undertakes the work for a fixed sum. Changes and additions are handled as ÄTA (variations). It requires complete documents if it is not to become a dispute trap.
• **Cost reimbursement (löpande räkning)** — the contractor is paid actual cost plus a fee. Flexible when scope is uncertain, but requires the client to track costs. Often combined with a target price and incentive.
• **Remeasurement (mängdreglering)** — an intermediate form in which payment is based on unit rates and actual quantities according to a bill of quantities. Common in civil works.

The standard conditions: AB 04, ABT 06 and ABK 09

The industry’s standard conditions are produced by Byggandets Kontraktskommitté (BKK), in which clients, contractors and consultants are represented, and distributed by Svensk Byggtjänst. AB 04 applies to build-only contracts, ABT 06 to design-and-build and ABK 09 to consultancy appointments. For small houses built for consumers, ABS 18 is used instead. The conditions only apply if the contract invokes them, and they are supplemented by administrative provisions (the AF section) setting out the project-specific terms — times, liquidated damages (vite), insurance, security and any amendments to the standard conditions.

The closest parallels are JCT and NEC in the UK, the AIA documents in the US and FIDIC internationally. The Swedish conditions are shorter, written in Swedish, negotiated as balanced documents, almost universally used and interpreted against long-established practice — so read them in full, preferably with Swedish legal advice.

BKK has long been working on successors to AB 04 and ABT 06 (working titles AB 25 and ABPU 25), but as of October 2026 they have not been published. Even once they arrive, AB 04 and ABT 06 are likely to remain in use alongside them for a long time.

Tender documents (förfrågningsunderlag)

The förfrågningsunderlag (tender documents) are what bidders price, and they become contract documents once signed: instructions to tenderers, administrative provisions (structured according to AMA AF), specifications, drawings, a bill of quantities or performance specification, and studies such as geotechnics. The contract must state the order of precedence between them.

Public clients and LOU

Municipalities, regions, government agencies and municipal companies must follow the Public Procurement Act — lagen om offentlig upphandling (LOU, 2016:1145) — or LUF in the utilities sectors. Both implement the EU directives, so advertising, equal treatment, transparency and proportionality will be familiar. Above the EU thresholds the directive procedures apply (open, restricted, negotiated); below them a simplified procedure; very small purchases can be direct awards. A flawed procedure can be challenged in the administrative court and delay the project. The National Agency for Public Procurement publishes guidance and current thresholds.

Partnering and collaboration

In partnering (samverkan), client, contractor and often consultants work as one organisation with open books, shared goals and shared risk, usually on cost reimbursement with a target cost and incentive. It suits complex, uncertain projects and demands a cost-competent client. It is a way of working, not a contract type — partnering normally still rests on AB 04 or ABT 06.

Construction: from site set-up to finished building

During construction (produktion) the contractor answers for execution, site health and safety and its own quality control. The client follows up through site meetings, checks and often a site representative (byggledare); the byggherre keeps its PBL responsibility and the KA monitors the control plan.

Site set-up and the work environment plan

Before the site is set up there must be a work environment plan (arbetsmiljöplan) — the Swedish equivalent of a construction phase health and safety plan — describing the organisation, site rules and how risks during construction will be managed. BAS-P prepares the plan during design and BAS-U adapts and supplements it during execution. If the work is extensive enough — according to the Swedish Work Environment Authority, when it is expected to last more than 30 working days with more than 20 people working at the same time at some point, or to involve more than 500 person-days — the byggherre must also submit a prior notification to the Authority.

Site set-up covers cabins, temporary roads and storage, utilities, security, waste and traffic, shown on a site layout plan (APD-plan). Swedish sites also require an electronic staff register (personalliggare) under the Swedish Tax Agency’s rules — see the Swedish construction industry guide for what this means for foreign firms.

BAS-U and work environment coordination

The byggherre must appoint a building work environment coordinator for execution (BAS-U). The rules are in the Work Environment Act and the Authority’s regulations, restructured on 1 January 2025 (AFS 2023:3 replaced AFS 1999:3 on building and civil engineering work). BAS-U coordinates the contractors’ safety work, keeps the work environment plan up to date and follows up through regular safety inspections (skyddsronder). The role is often held by the contractor’s site manager or a dedicated coordinator.

Self-inspection and receiving inspection

The contractor documents that the work has been done correctly through egenkontroll (self-inspection) — signed checks per activity, carried out before the work is covered up. Materials and products are checked on delivery in a receiving inspection (mottagningskontroll): right product, right quantity, undamaged, with CE marking and a declaration of performance where required. Before high-risk activities a method statement (arbetsberedning) is prepared and briefed to the crew. For how to identify and control those risks, see our guide to construction risk assessment.

ÄTA — variations, additions and omissions

ÄTA-arbeten (variations: changes, additions and omissions) are departures from the contracted scope, and AB 04 and ABT 06 regulate how they are ordered, priced and documented. The most common Swedish dispute is whether work was included or extra. Get written instructions, agree a price before starting where possible and keep a running log. Our guide to change order management explains the principles — and the Swedish notice periods are short, so notify in writing immediately.

Site meetings, site diary and authority visits

The site meeting (byggmöte) is the formal channel between client and contractor: programme, finances, variations, quality, health and safety and issues needing decisions. The minutes are in practice a contract document — what is not objected to in the minutes risks becoming binding. The site diary (byggdagbok) records every day: weather, staffing, deliveries, events and impediments. It is often the decisive evidence in disputes over extensions of time.

If the start notice was preceded by a technical consultation, the building committee must visit the site at least once unless a visit is unnecessary, and always on large or complex projects (PBL chapter 10, section 27). The committee checks the work against the permit, the control plan, the waste management plan and the start notice, and the KA must attend. No site visit is required where a building assessor handles the control.

Inspection and completion certificate

Completion has two tracks that are often confused. The contractual inspection (entreprenadbesiktning) is private law: has the contractor fulfilled its contract? The completion certificate (slutbesked) is public law: the building committee’s confirmation that the PBL requirements are met and the building may be used. One does not give you the other.

Contractual inspections under AB 04 and ABT 06

Inspections are carried out by an inspector (besiktningsman) appointed by the client, who must be impartial in their assessment. This is quite different from UK or US practice, where the architect, contract administrator or owner’s representative usually certifies practical or substantial completion. In Sweden, an independent inspector’s approval at the final inspection is what triggers handover and the start of the warranty period.

• **Pre-inspection (förbesiktning)** — inspection of a part of the works that will later be concealed or hard to check, or as a check-in before the final inspection.
• **Final inspection (slutbesiktning)** — when the contractor has notified that the works are complete. If the inspector approves the works, they are deemed handed over and the warranty period starts. Defects are recorded in a report and must be remedied.
• **Follow-up inspection (efterbesiktning)** — checks that defects from the final inspection have been remedied.
• **Warranty inspection (garantibesiktning)** — before the end of the warranty period, to establish defects that have appeared during it.

Final consultation and completion certificate

When the work is finished, the building committee calls a final consultation (slutsamråd) if there was a technical consultation or a building assessor was used, unless it is obviously unnecessary (chapter 10, section 30). It covers how the control plan, the waste management plan and the start-notice conditions have been followed, any deviations, the site-visit records and the KA’s statement. The committee then issues the slutbesked (completion certificate, roughly comparable to a certificate of occupancy) if the byggherre has shown that the requirements in the permit, control plan, waste management plan and start notice have been met (chapter 10, section 34). Without a completion certificate the building may, as the main rule, not be taken into use — moving in anyway can lead to a building penalty fee.

If there are deficiencies that are not serious enough to make the building unfit for use, the committee can issue an interim completion certificate (interimistiskt slutbesked). It lists the outstanding deficiencies and what is required for a final certificate. Interim certificates are common when external works such as landscaping and planting cannot be finished because of the season.

The climate declaration

Since 2022 the byggherre must, for most new buildings requiring a permit, register a climate declaration (klimatdeklaration) with Boverket before the completion certificate can be issued. It reports the construction-stage climate impact — materials, transport, manufacturing and construction — and in practice is compiled during construction. Boverket’s proposed limit values were not introduced in 2025; development is now coordinated with the EU Energy Performance of Buildings Directive. Boverket explains the rules in English.

As-built documents and handover

As-built documents (relationshandlingar) show how the building was actually built and, with operation and maintenance instructions, self-inspections, test reports and certificates, form the handover documentation. State the requirements in the tender documents, or expect arguments at the end about who updates what.

Operation and the warranty period

Once the final inspection is approved the building passes into operation, but the contractor’s responsibility continues through the warranty period.

Warranty period under AB 04 and ABT 06

Under the standard conditions the warranty period (garantitid) is five years from the approved final inspection, and two years for materials and goods procured by the contractor, unless the AF section says otherwise — far longer than the typical twelve-month defects period in UK and international forms. During it the contractor must remedy defects that appear, and the burden of proof largely lies on the contractor to show a defect is not its responsibility. Afterwards the contractor remains liable, for a longer period, for significant defects caused by negligence. Check the terms of the contract that actually applies.

The warranty inspection — the “five-year inspection”

Before the warranty period ends, a warranty inspection is held, commonly called the five-year inspection (femårsbesiktning). It establishes defects that have appeared during the warranty period and that the contractor must remedy. The client would be wise to collect fault reports and observations from operations continuously so the inspector has concrete evidence. A forgotten warranty inspection can mean the client loses the opportunity to have defects remedied at the contractor’s expense.

Operation and maintenance instructions

Operation and maintenance instructions (DU-instruktioner) and as-built documents form the basis of the maintenance plan. Some checks are mandatory, for example the compulsory ventilation inspection (OVK) and the energy performance certificate (energideklaration), and should be planned from day one.

Lessons learned

Erfarenhetsåterföring (lessons learned) means systematically collecting what went well and badly — inspection defects, variation patterns, self-inspection deviations, warranty fault reports — and feeding it into the next project. Our guide to lessons learned in construction projects shows how to set up a process the next project will actually use.

Common mistakes — and the ones foreign teams make most

Most problems in construction projects are procedural rather than technical: a decision taken too late, a responsibility nobody held, two documents that did not match. Remember that the documents form chains — plan provisions govern the site plan, the control plan governs the self-inspections that support the KA’s statement and the completion certificate, and the construction documents become the contract baseline for every variation. These mistakes recur project after project:

• **Planning against a detailed plan that has not gained legal force.** An appeal can push the whole project back a year or more.
• **Underestimated geotechnics.** Unknown clay, high groundwater or contaminated land is discovered in the excavation instead of in the feasibility study.
• **Incomplete permit application.** The ten-week period does not start until the application is complete, and requests for more information eat months.
• **Starting work without a start notice.** It triggers a building penalty fee — even if everything else is right.
• **Verbal variation orders.** What is not in writing is hard to get paid for — or to contest.
• **BAS-P and BAS-U as paper roles.** The byggherre cannot shed its responsibility just by writing in a name.
• **Starting the climate declaration at the end.** Material and quantity data is hard to obtain afterwards, and the completion certificate is delayed.
• **Forgotten warranty inspection.** Defects the contractor could have remedied become the owner’s cost.

Typical pitfalls for teams new to Sweden

• **Expecting the authority to check the design.** The municipality reviews suitability and documentation; technical compliance is the developer’s responsibility, monitored by the KA.
• **Treating AB 04/ABT 06 like a familiar international form.** The notice periods, inspection regime and five-year warranty are different — read the conditions and the AF section in full.
• **Ignoring AMA.** A short Swedish specification can carry a great deal of requirements through AMA references.
• **Confusing final inspection and completion certificate.** They are separate tracks with separate actors, and you need both.
• **Underestimating the Swedish-language load.** Permit documents, plan provisions, site rules and minutes run in Swedish; build translation and Swedish-speaking key staff into the budget.

Practical tips if you are new to the Swedish process

A few pieces of advice for project managers, engineers, contractors and investors new to Sweden:

• **Learn to separate the two tracks.** PBL (developer–municipality) and the contracts (client–contractor) have different rules, documents and actors. Almost every misunderstanding comes from mixing them up.
• **Read the AF section.** The administrative provisions say what actually applies on your project — times, liquidated damages, amendments to AB 04 or ABT 06.
• **Talk to the municipality early.** Book a pre-application meeting for larger projects and submit a complete application the first time.
• **Use quick tools for rough checks.** Our free calculators — for example the concrete calculator, rebar calculator and roof pitch calculator — give fast answers to everyday questions.
• **Understand the market before you bid.** Our guide to the Swedish construction industry covers the actors, standards, registration, posted-worker rules and collective agreements.

The full Swedish-language version of this guide, with links to Swedish templates, tools and glossary entries, is at Byggprocessen i Sverige (in Swedish).