Kitchen extensions in Watford: design, approvals and build
From the first sketch to final sign-off, we plan and build kitchen extensions in Watford and the surrounding Hertfordshire area.
- Guide price in WatfordFrom £28,500 inc VAT
- PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
- Build time10–16 weeks on site
- Postcode districtsWD1, WD2, WD17, WD18, WD23
Will the council need to approve it?
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.
Homes in conservation areas, national parks, National Landscapes (formerly AONBs), the Broads and World Heritage Sites have tighter rules, so we always check the property's status and planning history before design starts.
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).
Kitchen extension prices in Watford
Labour and material costs vary across the UK, so for Watford we use our East of England factor (×1.06). The ranges include VAT and exclude design, structural and council fees.
Typical rates in Watford: £1,910 to £3,710 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 5 m 15 m² | £28,500 – £33,500 | £33,000 – £42,500 | £42,000 – £56,000 |
| 4 m × 5 m 20 m² | £38,000 – £45,000 | £44,500 – £56,500 | £56,000 – £74,500 |
| 4 m × 7 m 28 m² | £53,000 – £62,500 | £62,000 – £79,000 | £78,500 – £104,000 |
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.
Covering Watford
Postcode districts we cover around Watford include WD1, WD2, WD17, WD18, WD23, WD24. We also work in nearby Bushey (2 miles), Rickmansworth (4 miles), Borehamwood (5 miles), St Albans (7 miles).
Pinner, in Greater London, is roughly 4 miles from Watford and also on our list. 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.
Included in a typical project
- Extraction routes and ventilation for building regulations
- Kitchen-led layout planning before the drawings are fixed
- Wide sliding or bifold doors to the garden
- Kitchen fitting by our team or coordination with your supplier
How the project works
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
We visit your Watford home, measure up, talk through what you want and check the planning position.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
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
Work is carried out to the agreed programme, inspected by building control and signed off at the end.
Common questions in Watford
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Watford, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
Do you cover all of Watford?
Yes. We cover Watford and the surrounding parts of Hertfordshire. Site visits are free and there is no obligation.
Who do I contract with for a kitchen extension in Watford?
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 £1,910 to £3,710 per m² including VAT. A standard 20 m² kitchen extension is typically around £44,500 to £56,500 in Watford, 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 Watford
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.