Shrewsbury house extensions
Every type of house extension in Shrewsbury, from single-storey kitchen extensions to two-storey additions, side returns and orangeries. We design, handle the approvals and build.
- Postcode districtsSY1, SY2, SY3
- Price regionWest Midlands (×0.97)
- Planning rulesEngland
- Site visitFree, no obligation

Areas we cover around Shrewsbury
Our survey diary covers Shrewsbury, including SY1, SY2, SY3. The same team covers Wellington (10 miles), Telford (13 miles), Oswestry (16 miles), Market Drayton (18 miles), Bridgnorth (19 miles), all within easy reach. Just over the Staffordshire border, Stafford is about 27 miles away.
Shrewsbury extension prices at a glance
We publish guide prices so you can budget before anyone visits. For Shrewsbury they are adjusted by ×0.97, the factor we use across West Midlands.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Single-storey rear extensions | 20 m² | £39,500 – £50,500 |
| Orangery extensions | 16 m² | £43,000 – £54,500 |
| Extensions over a garage | 12 m² | £24,000 – £31,500 |
| Kitchen extensions | 20 m² | £40,500 – £51,500 |
| Wraparound extensions | 25 m² | £55,500 – £70,500 |
| Side return extensions | 11 m² | £25,500 – £32,500 |
| Double-storey extensions | 32 m² | £55,500 – £73,000 |
Do extensions in Shrewsbury 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 England a single-storey side extension can be permitted development if it is no more than 4 m high and no wider than half the width of the original house. Two-storey side extensions, and any side extension on designated land such as a conservation area, need a householder planning application.
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).
Which extension suits a Shrewsbury home?
The West Midlands has a large stock of 1930s and post-war semi-detached houses, which are well suited to rear, side and over-garage extensions, plus Victorian terraces in the older inner areas.
Depending on the plot, single-storey rear extensions and double-storey extensions are often the strongest options, with kitchen extensions worth considering where there is room.
Every extension type in Shrewsbury
- Home office extensions · from £15,500
- Extension plans and drawings · from £1,150
- Double-storey extensions · from £36,500
- Flat roof extensions · from £20,000
- Conservatory replacement extensions · from £19,000
- Bungalow extensions · from £25,000
- Side extensions · from £21,000
- Annexe extensions · from £53,000
- Utility and boot room extensions · from £13,500
- Pitched roof extensions · from £21,500
- Wraparound extensions · from £34,500
- Porch extensions · from £3,850
- Single-storey rear extensions · from £20,000
- Kitchen extensions · from £26,000
- Bedroom extensions · from £25,000
- Timber frame extensions · from £20,000
- Extensions over a garage · from £23,000
- Side return extensions · from £17,000
- Glass box extensions · from £29,000
- Building regulations for extensions · from £850
- Orangery extensions · from £29,000
- Planning permission for extensions · from £300
Free site visit
It starts with a visit to your house to measure, check access and talk through ideas and budget.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
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
The build is managed from start to finish, inspected at each stage and signed off on completion.
Questions about extensions in Shrewsbury
How much does an extension cost in Shrewsbury?
Using our West Midlands factor (×0.97), a standard-spec single-storey extension of 20 m² is a guide £39,500 to £50,500 including VAT, and a 32 m² two-storey extension £55,500 to £73,000. Your written price follows the survey.
How long does an extension take in Shrewsbury?
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.
Who do I contract with?
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 Shrewsbury?
Yes, including the surrounding parts of Shropshire. Site visits are free and there is no obligation.
Do I need planning permission for an extension in Shrewsbury?
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.
Book a free site visit in Shrewsbury
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.