South Yorkshire house extensions
Every type of house extension in South Yorkshire, from single-storey kitchen extensions to two-storey additions, side returns and orangeries. We design, handle the approvals and build.
- Towns listed8
- Price regionYorkshire and the Humber (×0.94)
- Planning rulesEngland
- Postcode districts43
Towns we cover in South Yorkshire
Towns we cover here include Sheffield, Rotherham, Doncaster, Barnsley.
What works best for South Yorkshire houses?
Yorkshire and the Humber combines stone-built terraces in the Pennine towns with brick semis and newer estates elsewhere, so materials and roof details need matching with care.
Depending on the plot, double-storey extensions and single-storey rear extensions are often the strongest options, with pitched roof extensions worth considering where there is room.
Do extensions in South Yorkshire need planning permission?
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
South Yorkshire extension prices at a glance
We publish guide prices so you can budget before anyone visits. For South Yorkshire they are adjusted by ×0.94, the factor we use across Yorkshire and the Humber.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Extensions over a garage | 12 m² | £23,500 – £30,500 |
| Wraparound extensions | 25 m² | £54,000 – £68,500 |
| Double-storey extensions | 32 m² | £54,000 – £71,000 |
| Single-storey rear extensions | 20 m² | £38,500 – £49,000 |
| Conservatory replacement extensions | 14 m² | £28,000 – £36,500 |
| Side return extensions | 11 m² | £24,500 – £31,500 |
| Kitchen extensions | 20 m² | £39,000 – £50,000 |
Every extension type in South Yorkshire
- Double-storey extensions · from £35,500
- Conservatory replacement extensions · from £18,500
- Home office extensions · from £15,000
- Building regulations for extensions · from £800
- Timber frame extensions · from £19,500
- Orangery extensions · from £28,000
- Single-storey rear extensions · from £19,500
- Flat roof extensions · from £19,500
- Kitchen extensions · from £25,000
- Extensions over a garage · from £22,500
- Pitched roof extensions · from £20,500
- Bedroom extensions · from £24,000
- Extension plans and drawings · from £1,100
- Side extensions · from £20,500
- Side return extensions · from £16,500
- Bungalow extensions · from £24,500
- Utility and boot room extensions · from £13,000
- Planning permission for extensions · from £300
- Porch extensions · from £3,750
- Glass box extensions · from £28,000
- Wraparound extensions · from £33,500
- Annexe extensions · from £51,500
Neighbouring areas
Questions about extensions in South Yorkshire
How much does an extension cost in South Yorkshire?
With our Yorkshire and the Humber factor (×0.94), a standard-spec 20 m² single-storey extension is a guide £38,500 to £49,000 including VAT. Prices for every type are linked on this page.
Do you cover all of South Yorkshire?
Yes, across the whole of South Yorkshire. Site visits are free and there is no obligation.
Do I need planning permission for an extension in South Yorkshire?
Not always. It depends on the size, position and your property's history. Many single-storey rear extensions in England are permitted development or can use prior approval.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for South Yorkshire, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in South Yorkshire
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.