Grade II listed · Slough

Mill House and Tanhouse Farmhouse J R Swanston Plant and Engineer (Longford) Limited

Mill House and Tanhouse Farmhouse J R Swanston Plant and Engineer (Longford) Limited is a Grade II listed building in Slough, first listed on 26 April 1985. It is one of 92 Grade II entries among 104 listed buildings in Slough; 80% of Slough’s current entries were listed before it.

List entry
Field	Value
Name	Mill House and Tanhouse Farmhouse J R Swanston Plant and Engineer (Longford) Limited
Grade	Grade II — special interest
List entry number	1317656
Date first listed	26 April 1985
Local planning authority	Slough
Location	51.48398, -0.52024 (map)
Official record	Historic England list entry 1317656

Planning works on this listed building?

Planium checks which consents Slough will require for your works on Mill House and Tanhouse Farmhouse J R Swanston Plant and Engineer (Longford) Limited, lists what the heritage statement must cover and drafts the application text.

Ask Planium what consent you need

What the grade means for works

Grade II buildings are of special interest and make up over 90% of listed buildings in England. Most alterations, extensions and many internal changes still need listed building consent from the council.

The protection covers the whole building, inside and out, plus fixtures and attached structures. Typical works that need consent: replacing windows or doors, removing walls or historic fabric, changing roof coverings, installing solar panels or external insulation, and adding extensions.

Listed buildings near Mill House and Tanhouse Farmhouse J R Swanston Plant and Engineer (Longford) Limited

Name	Grade	Distance
Barn at Tanhouse Farm to South East of the Farmhouse	II	57 m
Old School House	II	100 m
1, 2 and 3, Park Street	II	127 m
Former School (Now Colnbrook Youth Centre)	II	129 m
Church of St Thomas	II	131 m
Badminton House, Post Office, Adjoining House and Hampton House	II	136 m
Aberdeen House	II	143 m
Park House and Ye Olde George Public House	II	144 m
Fairmead and the Haven	II	144 m
Abington	II	154 m

Frequently asked questions

Is Mill House and Tanhouse Farmhouse J R Swanston Plant and Engineer (Longford) Limited listed?

Yes. Mill House and Tanhouse Farmhouse J R Swanston Plant and Engineer (Longford) Limited is on the National Heritage List for England as a Grade II listed building, list entry number 1317656, first listed on 26 April 1985. The full list entry with its description and map is on Historic England’s website.

Do I need consent for works to Mill House and Tanhouse Farmhouse J R Swanston Plant and Engineer (Longford) Limited?

Works that affect its character as a building of special architectural or historic interest — inside or out — need listed building consent from Slough, in addition to any planning permission or building regulations approval. Like-for-like repairs often do not, but confirm with the council’s conservation officer before you start.

Source: National Heritage List for England, © Historic England 2026, via planning.data.gov.uk. Contains Ordnance Survey data © Crown copyright and database right. Licensed under the Open Government Licence v3.0. Retrieved 12 October 2026. Local authority assigned from the list entry point. This page is a summary — the legal record is the official list entry.