West Yorkshire
Two-storey rear extensions in West Yorkshire
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. Rear extensions in West Yorkshire: we cover 38 towns including Leeds, Bradford and Huddersfield, with design, approvals and the build under one contract.

In West Yorkshire we check the neighbours' rear windows first, because the upper floor is where most two-storey schemes win or lose planning. Stone terraces and brick semis are typical of West Yorkshire. Matching sandstone or gritstone on a terrace is one of the biggest cost variables, and reclaimed stone is often the best match.
How much does a two-storey rear extension cost in West Yorkshire?
For West Yorkshire we work from the Yorkshire and the Humber rate: £1,670–£2,510 per square metre of new floor, including VAT, standard specification. Yorkshire prices sit below our West Midlands baseline; matching natural stone is the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m × 5 m footprint, two floors (30 m²) | £50,000–£75,500 |
| 4 m × 6 m footprint, two floors (48 m²) | £80,500–£120,500 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission in West Yorkshire?
A two-storey rear extension can be permitted development in England only if it projects no more than 3 metres, stays at least 7 metres from the rear boundary, matches the existing roof pitch and has obscure-glazed upper side windows. In practice most double-storey rear extensions go through a householder planning application.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent.
Where in West Yorkshire do we work?
- Leeds
- Bradford
- Huddersfield
- Wakefield
- Halifax
- Dewsbury
- Morley
- Keighley
- Castleford
- Pontefract
- Batley
- Yeadon
- Brighouse
- Shipley
- Cleckheaton
- Pudsey
- Lofthouse
- Ossett
- Guiseley
- Liversedge
- Horsforth
- South Elmsall
- Mirfield
- Chapel Allerton
- Heckmondwike
- Bingley
- Kippax
- Baildon
- Elland
- Garforth
- Ilkley
- Otley
- Knottingley
- Wetherby
- Todmorden
- Rastrick
- Featherstone
- Horbury
FAQ
Questions people ask
Does a two-storey rear extension need planning permission?
Almost always. England and Northern Ireland allow 3 metres without an application only if at least 7 metres remains to the rear boundary; Wales and Scotland are similar or stricter.
Is two-storey cheaper per square metre than single-storey?
Usually yes, because the foundations and roof are shared across twice the floor area. The total cost is higher.
Can I add an en-suite upstairs?
Yes. We plan the soil pipe route early so the bathroom sits where drainage works without boxing through the room below.
Do you cover all of West Yorkshire?
We cover 38 towns and districts in West Yorkshire, including Leeds, Bradford and Huddersfield.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.