Cromer house extensions
More space without moving: we plan and build extensions across Cromer, with one team for the drawings, the council and the build.
- Postcode districtsNR27
- Price regionEast of England (×1.06)
- Planning rulesEngland
- Site visitFree, no obligation
Guide prices for Cromer
We publish guide prices so you can budget before anyone visits. For Cromer they are adjusted by ×1.06, the factor we use across East of England.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Single-storey rear extensions | 20 m² | £43,000 – £55,500 |
| Kitchen extensions | 20 m² | £44,500 – £56,500 |
| Orangery extensions | 16 m² | £47,000 – £59,500 |
| Wraparound extensions | 25 m² | £60,500 – £77,000 |
| Conservatory replacement extensions | 14 m² | £31,500 – £41,000 |
Choosing the right extension in Cromer
The East of England mixes market-town terraces, inter-war semis and modern estates. Clay soils are common in parts of the region, which can affect foundation design.
The types we would usually look at first for a home in Cromer are bungalow extensions, double-storey extensions and wraparound extensions, depending on the garden and how the house is laid out.
Where we work near Cromer
We cover Cromer and the postcode districts NR27. We also work in nearby North Walsham (8 miles), Norwich (21 miles), Dereham (23 miles), Wymondham (26 miles), Great Yarmouth (28 miles). For homes towards Suffolk, Lowestoft is around 36 miles away.
Planning and building control in Cromer
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).
Extension types and starting prices
- Side extensions · from £23,000
- Conservatory replacement extensions · from £21,000
- Side return extensions · from £19,000
- Single-storey rear extensions · from £22,000
- Bedroom extensions · from £27,500
- Kitchen extensions · from £28,500
- Utility and boot room extensions · from £14,500
- Glass box extensions · from £31,500
- Extension plans and drawings · from £1,250
- Wraparound extensions · from £38,000
- Flat roof extensions · from £22,000
- Pitched roof extensions · from £23,500
- Bungalow extensions · from £27,500
- Planning permission for extensions · from £350
- Timber frame extensions · from £22,000
- Extensions over a garage · from £25,000
- Porch extensions · from £4,200
- Building regulations for extensions · from £950
- Orangery extensions · from £31,500
- Home office extensions · from £16,500
- Annexe extensions · from £58,000
- Double-storey extensions · from £40,000
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
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
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
Work is carried out to the agreed programme, inspected by building control and signed off at the end.
Questions about extensions in Cromer
How much does an extension cost in Cromer?
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.
How long does an extension take in Cromer?
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.
Do you cover all of Cromer?
Yes, including the surrounding parts of Norfolk. Site visits are free and there is no obligation.
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.
Book a free site visit in Cromer
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.