Bedroom extensions in Rotherham: design, approvals and build
Planning a bedroom extension in Rotherham? We survey the house, work out the planning route, draw the design and build it, so you deal with one team from the first visit to the completion certificate.
- Guide price in RotherhamFrom £24,000 inc VAT
- PlanningUsually a householder application
- Build time14–22 weeks on site
- Postcode districtsS5, S9, S60, S61, S62
What we take care of
- Structure, roof, insulation and finish
- Fire safety: escape windows and smoke alarms to building regulations
- Heating extended to the new rooms
- En-suite drainage and ventilation design
Planning and approvals in Rotherham
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.
Homes in conservation areas, national parks, National Landscapes (formerly AONBs), the Broads and World Heritage Sites have tighter rules, so we always check the property's status and planning history before design starts.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Building over or within 3 m of a public sewer needs the water company's consent, usually through a build-over agreement, before the foundations go in.
Applications are decided by the local planning authority (your district, borough or unitary council).
Extensions in and around Rotherham
Our survey diary covers Rotherham, including S5, S9, S60, S61, S62, S65. Nearby, we also take on projects in Rawmarsh (2 miles), Sheffield (6 miles), Dinnington (8 miles), Barnsley (10 miles).
Just over the Derbyshire border, Dronfield is about 10 miles away. 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.
Bedroom extension prices in Rotherham
Labour and material costs vary across the UK, so for Rotherham we use our Yorkshire and the Humber factor (×0.94). The ranges include VAT and exclude design, structural and council fees.
Typical rates in Rotherham: £1,500 to £3,010 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| One bedroom 12 m² | £24,000 – £30,000 | £24,000 – £32,000 | £27,000 – £36,500 |
| Bedroom and en-suite 18 m² | £27,000 – £33,000 | £32,000 – £41,500 | £40,500 – £54,500 |
| Two rooms 30 m² | £45,000 – £55,000 | £53,500 – £69,500 | £67,500 – £90,500 |
For a figure based on your own dimensions, use our guide-price tool.
From first visit to completion
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
We produce the drawings and structural design, and manage the approvals so they are in place before work starts.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Common questions in Rotherham
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Rotherham, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
Who do I contract with for a bedroom extension in Rotherham?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Do you cover all of Rotherham?
Yes. We cover Rotherham and the surrounding parts of South Yorkshire. Site visits are free and there is no obligation.
Will a new bedroom need planning permission?
Upstairs additions usually do. Ground-floor rooms may fall within permitted development, depending on size and position.
How much does a bedroom extension cost?
Our guide range is about £1,500 to £3,010 per m² including VAT. A bedroom with an en-suite of about 18 m² is typically £32,000 to £41,500 at standard spec, depending on whether it is part of a larger two-storey build.
Book a free site visit in Rotherham
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.