Planning in Southampton

Southampton City Council has 44 conservation areas and 8 Article 4 direction areas on the national planning data platform, plus 452 listed building outlines.

Conservation areas
44
Article 4 directions
8
Listed building outlines
452
Planning applications
–
not published yet
Check what you can build — with AI

Planium reads the conservation area appraisal, Article 4 directions and local plan policies for Southampton and tells you whether your extension, loft conversion or change of use needs planning permission.

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Conservation areas

  • Bassett Green Villagedesignated 8 September 1977
  • Bassett Green Villagedesignated 1 January 1977
  • Canute Roaddesignated 9 January 1986
  • Canute Roaddesignated 1 January 1986
  • Carlton Crescentdesignated 19 October 1972
  • Carlton Crescentdesignated 1 January 2016
  • Cranbury Placedesignated 8 September 1977
  • Cranbury Place
  • Cranbury Placedesignated 1 January 2013
  • Ethelburt Avenuedesignated 22 September 1988
  • Ethelburt Avenuedesignated 1 January 2015
  • Itchen Valleydesignated 9 January 1986
  • Itchen Valleydesignated 1 January 1986
  • Oakmount Triangledesignated 10 August 2005
  • Oakmount Triangledesignated 1 January 2005
  • Old Town Northdesignated 19 October 1972
  • Old Town Northdesignated 1 January 1974
  • Old Town Southdesignated 19 October 1972
  • Old Town Southdesignated 1 January 1974
  • Old Town Westdesignated 19 October 1972
  • Old Town Westdesignated 1 January 1974
  • Old Woolston 1designated 1 January 1974
  • Old Woolston 1designated 1 January 2010
  • Old Woolston 2designated 1 January 1974
  • Old Woolston 2designated 1 January 2010
  • Old Woolston 3
  • Old Woolston 3designated 1 January 1974
  • Old Woolston 3
  • Old Woolston 3designated 1 January 2010
  • Old Woolston 3designated 1 January 2010
  • Old Woolston 4designated 1 January 1974
  • Old Woolston 4designated 1 January 2010
  • Oxford Streetdesignated 19 October 1972
  • Oxford Streetdesignated 1 January 2010
  • Portswood Residents' Gardensdesignated 21 October 1996
  • Portswood Residents' Gardensdesignated 1 January 1996
  • St Annes Roaddesignated 9 January 1986
  • St Annes Roaddesignated 1 January 2010
  • St James Roaddesignated 21 January 1988
  • St James Roaddesignated 1 January 1996
  • The Avenuedesignated 2 January 1975
  • The Avenuedesignated 1 January 2013
  • Uplands Estatedesignated 9 January 1986
  • Uplands Estatedesignated 1 January 1986

Article 4 directions

  • Carlton Crescent Conservation Area28 July 2014
  • Cranbury Place Conservation Area28 July 2014
  • Ethelburt Avenue Conservation Area31 December 2001
  • HMO23 March 2012
  • Oakmount Triangle Conservation Area23 August 2019
  • Portswood Residents' Gardens Conservation Area24 March 2009
  • The Avenue Conservation Area28 July 2014
  • Uplands Estate Conservation Area31 December 2001

Frequently asked questions

Is my property in a conservation area in Southampton?
Southampton City Council has designated 44 conservation areas, listed on this page with their designation dates and appraisal documents where the council publishes them. In a conservation area, permitted development rights are narrower: cladding, some extensions, roof alterations and satellite dishes on the front elevation may need planning permission, and demolition of most buildings needs consent.
What is an Article 4 direction?
An Article 4 direction removes specific permitted development rights in a defined area, so work that would normally not need planning permission — for example replacing windows, changing a house into a small HMO or altering front boundaries — does need an application. Southampton has 8 Article 4 direction areas recorded on planning.data.gov.uk.
How do I check what I am allowed to build?
Start with the designations on the site (conservation area, Article 4, listed building), then the local plan policies and any design codes. Planium can read the council’s appraisal and policy documents and summarise what applies to your project, including whether permitted development is available.

Southampton City Council website · All local planning authorities

Source: planning.data.gov.uk (Ministry of Housing, Communities and Local Government) (Open Government Licence v3.0) · Retrieved 2026-10-09