Basingstoke, Hampshire
Kitchen-diner rear extension in Basingstoke
An open-plan kitchen, dining and family room that opens straight onto the garden. If you live in Basingstoke and want to know what a kitchen-diner rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
We cover Basingstoke (RG21, RG22, RG23 and RG24) as part of our Hampshire work. We usually keep the working kitchen where the old one was and put the dining table in the new space by the doors, which suits most Basingstoke homes.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a kitchen-diner rear extension cost in Basingstoke?
A kitchen-diner rear extension in Basingstoke is priced at £2,130–£3,470 per square metre including VAT as a guide, before kitchen fit-out and fees. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £25,500–£41,500 |
| 4 m wide × 5 m deep (20 m²) | £42,500–£69,500 |
| 4 m wide × 6 m deep (24 m²) | £51,000–£83,500 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a kitchen-diner rear extension in Basingstoke?
Planning for a kitchen-diner rear extension in Basingstoke follows the English householder rules.
Under England's householder permitted development rules you can usually add 3 metres at the back of an attached house, or 4 metres on a detached house, without a planning application, as long as the extension stays under 4 metres high and its eaves stay under 3 metres where it is within 2 metres of a boundary.
England also has the larger home extension route: a single-storey rear extension of up to 6 metres on an attached house or 8 metres on a detached house, after prior approval from the council. The council notifies your neighbours and has 42 days to decide; the fee is £249 (£310 for applications made from 8 December 2026). The route is not available on designated land such as conservation areas.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Basingstoke like to extend?
Basingstoke has a mix of Victorian terraces near the centre and larger Edwardian and inter-war houses further out. Clay soils across much of the South East mean deeper foundations near trees, which we plan for at the survey.
How a kitchen-diner rear extension in Basingstoke comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Kitchen-diner rear extensions near Basingstoke
Neighbouring places we cover include Tadley (6.3 miles) and Alton (9.2 miles).
- Kitchen-diner rear extension in Tadley
- Kitchen-diner rear extension in Alton
- Kitchen-diner rear extension in Fleet
- Kitchen-diner rear extension in Thatcham
- Kitchen-diner rear extension in Yateley
Other work in Basingstoke:
FAQ
Kitchen-diner rear extension questions in Basingstoke
Do you handle building control in Basingstoke?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Do I need a party wall agreement?
In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.
Can I add a utility room?
Often. A narrow utility or boot room along one side keeps the washing machine out of the open-plan space.
Can you match the brick or stone on my Basingstoke house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Is the site visit in Basingstoke free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How long does a rear extension take to build in Basingstoke?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.