House extensions in Hexham
From a small utility to a two-storey addition, we take on house extensions throughout Hexham, starting with a free visit and a planning check.
- Postcode districtsNE46
- Price regionNorth East England (×0.91)
- Planning rulesEngland
- Site visitFree, no obligation

Where we work near Hexham
We cover Hexham and the postcode districts NE46. Neighbouring towns we cover include Morpeth (22 miles), Cramlington (22 miles), Bedlington (23 miles), Ashington (25 miles), Blyth (26 miles). Consett, in County Durham, is roughly 14 miles from Hexham and also on our list.
Choosing the right extension in Hexham
Across the North East, houses often have rear yards or modest gardens, so compact, well-lit single-storey extensions make the biggest difference.
Depending on the plot, utility and boot room extensions and kitchen extensions are often the strongest options, with double-storey extensions worth considering where there is room.
Approvals for an extension in Hexham
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 return infill is often permitted development if it stays within the height limits and is no wider than half the width of the original house. Conservation areas, listed buildings and flats always need an application, and the boundary wall usually brings in the Party Wall Act.
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).
Guide prices for Hexham
Prices on this page use our North East England factor of ×0.91, 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) |
|---|---|---|
| Side return extensions | 11 m² | £24,000 – £30,500 |
| Double-storey extensions | 32 m² | £52,000 – £68,500 |
| Extensions over a garage | 12 m² | £22,500 – £29,500 |
| Kitchen extensions | 20 m² | £38,000 – £48,500 |
| Conservatory replacement extensions | 14 m² | £27,000 – £35,500 |
Choose an extension type
- Building regulations for extensions · from £800
- Glass box extensions · from £27,000
- Flat roof extensions · from £19,000
- Home office extensions · from £14,500
- Wraparound extensions · from £32,500
- Annexe extensions · from £50,000
- Extensions over a garage · from £21,500
- Porch extensions · from £3,600
- Bungalow extensions · from £23,500
- Single-storey rear extensions · from £19,000
- Bedroom extensions · from £23,500
- Side extensions · from £20,000
- Double-storey extensions · from £34,500
- Timber frame extensions · from £19,000
- Utility and boot room extensions · from £12,500
- Extension plans and drawings · from £1,050
- Kitchen extensions · from £24,500
- Conservatory replacement extensions · from £18,000
- Side return extensions · from £16,000
- Planning permission for extensions · from £300
- Orangery extensions · from £27,000
- Pitched roof extensions · from £20,000
Free site visit
It starts with a visit to your house to measure, check access and talk through ideas and budget.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
Fixed written price
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
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 Hexham
How much does an extension cost in Hexham?
Using our North East England factor (×0.91), a standard-spec single-storey extension of 20 m² is a guide £37,000 to £47,500 including VAT, and a 32 m² two-storey extension £52,000 to £68,500. Your written price follows the survey.
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.
How long does an extension take in Hexham?
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 Hexham?
Yes, including the surrounding parts of Northumberland. Site visits are free and there is no obligation.
Book a free site visit in Hexham
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.