Extensions in Norwich: design, planning and build
Looking to extend your home in Norwich? Start here: extension types, guide prices for Norwich, the planning rules that apply and how a project runs.
- Postcode districtsNR1, NR2, NR3, NR4, NR6, NR7
- Price regionEast of England (×1.06)
- Planning rulesEngland
- Site visitFree, no obligation
What works best for Norwich houses?
Across the East of England many houses sit on generous plots, and single-storey and wraparound extensions are a natural fit.
For many houses here, wraparound extensions, single-storey rear extensions or double-storey extensions gives the most useful space for the budget.
What extensions cost in Norwich
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) |
|---|---|---|
| Orangery extensions | 16 m² | £47,000 – £59,500 |
| Wraparound extensions | 25 m² | £60,500 – £77,000 |
| Extensions over a garage | 12 m² | £26,500 – £34,500 |
| Single-storey rear extensions | 20 m² | £43,000 – £55,500 |
| Kitchen extensions | 20 m² | £44,500 – £56,500 |
Areas we cover around Norwich
Our survey diary covers Norwich, including NR1, NR2, NR3, NR4, NR6, NR7. The same team covers Wymondham (9 miles), North Walsham (14 miles), Dereham (16 miles), Great Yarmouth (18 miles), Cromer (21 miles), all within easy reach. Lowestoft, in Suffolk, is roughly 22 miles from Norwich and also on our list.
Planning and building control in Norwich
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).
Every extension type in Norwich
- Bedroom extensions · from £27,500
- Extension plans and drawings · from £1,250
- Flat roof extensions · from £22,000
- Extensions over a garage · from £25,000
- Wraparound extensions · from £38,000
- Timber frame extensions · from £22,000
- Annexe extensions · from £58,000
- Pitched roof extensions · from £23,500
- Porch extensions · from £4,200
- Home office extensions · from £16,500
- Planning permission for extensions · from £350
- Single-storey rear extensions · from £22,000
- Kitchen extensions · from £28,500
- Conservatory replacement extensions · from £21,000
- Double-storey extensions · from £40,000
- Utility and boot room extensions · from £14,500
- Building regulations for extensions · from £950
- Orangery extensions · from £31,500
- Bungalow extensions · from £27,500
- Side return extensions · from £19,000
- Side extensions · from £23,000
- Glass box extensions · from £31,500
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 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
The build is managed from start to finish, inspected at each stage and signed off on completion.
Questions about extensions in Norwich
How much does an extension cost in Norwich?
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.
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.
Will my neighbours need to be told?
If you apply for planning or prior approval the council notifies them, and in England party wall notices may be needed for work near a shared boundary.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Norwich, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in Norwich
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.