Kitchen extensions in Mangotsfield: design, approvals and build
We design and build kitchen extensions for houses in Mangotsfield, with a written price once the survey and design are done and one point of contact throughout.
- Guide price in MangotsfieldFrom £27,500 inc VAT
- PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
- Build time10–16 weeks on site
- Postcode districtsBS15, BS16, BS36

Planning and approvals in Mangotsfield
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.
Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.
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).
Who a kitchen extension suits
- Small or closed-off kitchens
- Families who want cooking, dining and living together
- Homes being prepared for sale or a long-term stay
How much does a kitchen extension cost in Mangotsfield?
Prices below are for Mangotsfield, using the South West England factor of ×1.02. They are guide ranges including VAT for the build only, not a quote.
Typical rates in Mangotsfield: £1,840 to £3,570 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 5 m 15 m² | £27,500 – £32,500 | £32,000 – £41,000 | £40,500 – £54,000 |
| 4 m × 5 m 20 m² | £36,500 – £43,000 | £42,500 – £54,500 | £54,000 – £71,500 |
| 4 m × 7 m 28 m² | £51,000 – £60,000 | £59,500 – £76,000 | £75,500 – £100,000 |
Build cost only. A mid-range kitchen, supplied and fitted, typically adds £9,000 to £20,000.
Try the guide-price tool to see a range for your own size and finish.
Working in Mangotsfield
Our survey diary covers Mangotsfield, including BS15, BS16, BS36. Neighbouring towns we cover include Kingswood (2 miles), Yate (5 miles), Thornbury (8 miles), Dursley (15 miles).
Just over the Somerset border, Keynsham is about 5 miles away. South West homes range from terraced streets in the cities to stone cottages and bungalows in the countryside, and conservation areas are common in historic centres.
What happens next
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
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
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Your questions about a kitchen extension in Mangotsfield
Do you cover all of Mangotsfield?
Yes. We cover Mangotsfield and the surrounding parts of Gloucestershire. Site visits are free and there is no obligation.
How long does a kitchen extension take to build in Mangotsfield?
On site, typically 10 to 16 weeks once approvals are in place. Before that, allow 4–12 weeks design and approvals.
Who do I contract with for a kitchen extension in Mangotsfield?
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.
How much does a kitchen extension cost?
For the extension itself our guide range is about £1,840 to £3,570 per m² including VAT. A standard 20 m² kitchen extension is typically around £42,500 to £54,500 in Mangotsfield, plus the kitchen itself, which commonly adds £9,000 to £20,000 for a mid-range design.
Where should the island go?
Usually under the brightest part of the roof and away from the main walkway to the garden. We test two or three layouts on the plan before deciding.
Book a free site visit in Mangotsfield
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.