Shrewsbury, Shropshire
Single-storey rear extension in Shrewsbury
We plan and build single-storey rear extensions for homeowners in Shrewsbury. Ground-floor space across the back of the house, usually for a kitchen, dining or family room. Start with a free site visit, then a written price once the design is agreed.
Shrewsbury is covered from our Shropshire round, including SY1, SY2 and SY3. A depth of 3 to 4 metres keeps many single-storey rear extensions in Shrewsbury within permitted development, subject to the house's planning history.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a single-storey rear extension cost in Shrewsbury?
In Shrewsbury, our guide for a single-storey rear extension is £1,900–£3,100 per square metre including VAT for a standard specification. The West Midlands is the baseline for our guide prices.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £23,000–£37,000 |
| 4 m wide × 5 m deep (20 m²) | £38,000–£62,000 |
| 4 m wide × 6 m deep (24 m²) | £45,500–£74,500 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a single-storey rear extension in Shrewsbury?
Whether your single-storey rear extension in Shrewsbury needs a planning application depends on its size, your house and any local restrictions.
English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres within 2 metres of a boundary.
England also has the larger home extension route: a single-storey rear extension of up to 6 metres on an attached house or 8 metres on a detached house, after prior approval from the council. The council notifies your neighbours and has 42 days to decide; the fee is £249 (£310 for applications made from 8 December 2026). The route is not available on designated land such as conservation areas.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Shrewsbury like to extend?
Shrewsbury has a lot of post-war semis and estate houses with long gardens and side access, which makes rear extensions quicker to build.
How a single-storey rear extension in Shrewsbury comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Single-storey rear extensions near Shrewsbury
We also build single-storey rear extensions in nearby Wellington (9.9 miles) and Hadley (11.3 miles).
- Single-storey rear extension in Wellington
- Single-storey rear extension in Hadley
- Single-storey rear extension in Telford
- Single-storey rear extension in Newport
- Single-storey rear extension in Oswestry
Other work in Shrewsbury:
FAQ
Single-storey rear extension questions in Shrewsbury
What postcode areas do you cover around Shrewsbury?
Including SY1, SY2 and SY3, and the surrounding Shropshire area.
Do you handle building control in Shrewsbury?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Can I stay in the house during the build?
Usually yes. The noisiest, dustiest stage, removing the back wall, is kept to the final weeks and screened off. Most families set up a temporary kitchen elsewhere in the house.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
Do I need a party wall agreement?
In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.