Chalfont St Peter, Buckinghamshire
Terraced house rear extension in Chalfont St Peter
Rear and side return extensions for terraces, with access through the house and two neighbours. We design, get the approvals for and build rear extensions for terraced houses in Chalfont St Peter and the surrounding area, with one contract from the first survey to building control sign-off.
Chalfont St Peter is covered from our Buckinghamshire round, including SL9. Terraced streets make up much of the housing in parts of Buckinghamshire, and most rear extensions here go in without side access.
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 terraced house rear extension cost in Chalfont St Peter?
For Chalfont St Peter we work from the South East England rate: £2,300–£3,700 per square metre of new floor, including VAT, standard specification. 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 × 4.5 m deep (13.5 m²) | £31,000–£50,000 |
| 3 m wide × 6 m deep (18 m²) | £41,500–£66,500 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a terraced house rear extension in Chalfont St Peter?
The planning route for a terraced house rear extension in Chalfont St Peter is set by England's householder rules and your council.
In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part is within 2 metres of a boundary.
Because rear extensions often sit on or near the boundary, the Party Wall etc. Act 1996 usually applies in England. Notices go out one or two months before work depending on the type of work, and a surveyor's award is only needed if a neighbour does not consent.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Chalfont St Peter like to extend?
Around Chalfont St Peter the housing ranges from inter-war semis to 1960s and 1970s estates with good-sized gardens. Many of the newer estates had permitted development rights removed by condition, so we check the planning history before anything is drawn.
How a terraced house rear extension in Chalfont St Peter comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Terraced house rear extensions near Chalfont St Peter
Close by, we work in Gerrards Cross, about 1.6 miles away, and Chorleywood, about 3.6 miles away.
- Terraced house rear extension in Gerrards Cross
- Terraced house rear extension in Chorleywood
- Terraced house rear extension in Beaconsfield
- Terraced house rear extension in Rickmansworth
- Terraced house rear extension in Batchworth
Other work in Chalfont St Peter:
FAQ
Terraced house rear extension questions in Chalfont St Peter
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
What postcode areas do you cover around Chalfont St Peter?
Including SL9, and the surrounding Buckinghamshire area.
How do you keep the house clean?
Dust screens, floor protection and a single protected route through the house.
How long does a rear extension take to build in Chalfont St Peter?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Do you handle building control in Chalfont St Peter?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.