House extensions in Rawmarsh
Every type of house extension in Rawmarsh, from single-storey kitchen extensions to two-storey additions, side returns and orangeries. We design, handle the approvals and build.
- Postcode districtsS62
- Price regionYorkshire and the Humber (×0.94)
- Planning rulesEngland
- Site visitFree, no obligation
Areas we cover around Rawmarsh
Our survey diary covers Rawmarsh, including S62. The same team covers Rotherham (2 miles), Sheffield (7 miles), Barnsley (8 miles), Dinnington (9 miles), Doncaster (10 miles), all within easy reach. Just over the West Yorkshire border, South Elmsall is about 10 miles away.
What works best for Rawmarsh houses?
Homes across Yorkshire and the Humber range from back-to-back and through terraces to large suburban semis, and extension options vary with them.
Start by comparing double-storey extensions, pitched roof extensions and single-storey rear extensions: between them they cover most of the layouts we see requested for houses like these.
What extensions cost in Rawmarsh
Prices on this page use our Yorkshire and the Humber factor of ×0.94, include VAT at 20% and cover the build; your written price follows a survey and agreed drawings.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Orangery extensions | 16 m² | £42,000 – £53,000 |
| Single-storey rear extensions | 20 m² | £38,500 – £49,000 |
| Wraparound extensions | 25 m² | £54,000 – £68,500 |
| Side return extensions | 11 m² | £24,500 – £31,500 |
| Double-storey extensions | 32 m² | £54,000 – £71,000 |
Planning rules in Rawmarsh
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 England a two-storey rear extension is permitted development only if it projects no more than 3 m from the original rear wall, sits at least 7 m from the rear boundary, matches the roof pitch and uses obscure, non-opening side windows upstairs. Most two-storey extensions therefore go through a householder planning application, which costs £548 from 1 April 2026 and normally takes about 8 weeks.
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.
Applications are decided by the local planning authority (your district, borough or unitary council).
All extension types we build in Rawmarsh
- Single-storey rear extensions · from £19,500
- Timber frame extensions · from £19,500
- Extension plans and drawings · from £1,100
- Conservatory replacement extensions · from £18,500
- Planning permission for extensions · from £300
- Bedroom extensions · from £24,000
- Extensions over a garage · from £22,500
- Annexe extensions · from £51,500
- Double-storey extensions · from £35,500
- Home office extensions · from £15,000
- Orangery extensions · from £28,000
- Porch extensions · from £3,750
- Kitchen extensions · from £25,000
- Building regulations for extensions · from £800
- Side return extensions · from £16,500
- Glass box extensions · from £28,000
- Side extensions · from £20,500
- Pitched roof extensions · from £20,500
- Utility and boot room extensions · from £13,000
- Bungalow extensions · from £24,500
- Wraparound extensions · from £33,500
- Flat roof extensions · from £19,500
Free site visit
It starts with a visit to your house to measure, check access and talk through ideas and budget.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
Fixed written price
The price is fixed in writing once the design is settled, with a clear programme and payment stages.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Questions about extensions in Rawmarsh
How much does an extension cost in Rawmarsh?
Using our Yorkshire and the Humber factor (×0.94), a standard-spec single-storey extension of 20 m² is a guide £38,500 to £49,000 including VAT, and a 32 m² two-storey extension £54,000 to £71,000. Your written price follows the survey.
How long does an extension take in Rawmarsh?
Usually 2 to 4 months of design and approvals, then 10 to 16 weeks on site for a single-storey extension or 16 to 24 weeks for two storeys.
Do I need planning permission for an extension in Rawmarsh?
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.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Book a free site visit in Rawmarsh
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.