House extensions in Wymondham
Looking to extend your home in Wymondham? Start here: extension types, guide prices for Wymondham, the planning rules that apply and how a project runs.
- Postcode districtsNR18
- Price regionEast of England (×1.06)
- Planning rulesEngland
- Site visitFree, no obligation
Planning rules in Wymondham
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.
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.
Applications are decided by the local planning authority (your district, borough or unitary council).
Choosing the right extension in Wymondham
Across the East of England many houses sit on generous plots, and single-storey and wraparound extensions are a natural fit.
Depending on the plot, bungalow extensions and double-storey extensions are often the strongest options, with wraparound extensions worth considering where there is room.
Areas we cover around Wymondham
Across NR18, we can visit, measure and advise. Neighbouring towns we cover include Norwich (9 miles), Dereham (11 miles), Thetford (19 miles), North Walsham (21 miles), Cromer (26 miles). For homes towards Suffolk, Stowmarket is around 27 miles away.
Wymondham extension prices at a glance
Prices on this page use our East of England factor of ×1.06, 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) |
|---|---|---|
| Extensions over a garage | 12 m² | £26,500 – £34,500 |
| Wraparound extensions | 25 m² | £60,500 – £77,000 |
| Side return extensions | 11 m² | £27,500 – £35,000 |
| Double-storey extensions | 32 m² | £61,000 – £80,000 |
| Orangery extensions | 16 m² | £47,000 – £59,500 |
Choose an extension type
- Planning permission for extensions · from £350
- Conservatory replacement extensions · from £21,000
- Utility and boot room extensions · from £14,500
- Extension plans and drawings · from £1,250
- Flat roof extensions · from £22,000
- Bedroom extensions · from £27,500
- Annexe extensions · from £58,000
- Side return extensions · from £19,000
- Extensions over a garage · from £25,000
- Wraparound extensions · from £38,000
- Orangery extensions · from £31,500
- Timber frame extensions · from £22,000
- Bungalow extensions · from £27,500
- Glass box extensions · from £31,500
- Porch extensions · from £4,200
- Building regulations for extensions · from £950
- Kitchen extensions · from £28,500
- Single-storey rear extensions · from £22,000
- Side extensions · from £23,000
- Pitched roof extensions · from £23,500
- Home office extensions · from £16,500
- Double-storey extensions · from £40,000
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
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
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 Wymondham
How much does an extension cost in Wymondham?
Using our East of England factor (×1.06), a standard-spec single-storey extension of 20 m² is a guide £43,000 to £55,500 including VAT, and a 32 m² two-storey extension £61,000 to £80,000. Your written price follows the survey.
Do you cover all of Wymondham?
Yes, including the surrounding parts of Norfolk. Site visits are free and there is no obligation.
Do I need planning permission for an extension in Wymondham?
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 Wymondham, and the guide-price tool gives a range for your own size and finish in about a minute.
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 Wymondham
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.