Crowthorne, Berkshire
Terraced house rear extension in Crowthorne
Terraced house rear extension in Crowthorne: rear and side return extensions for terraces, with access through the house and two neighbours. We measure the house, show you what the rules allow, price it in writing and build it.
We cover Crowthorne (RG40 and RG45) as part of our Berkshire work. Terraced streets make up much of the housing in parts of Berkshire, 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 Crowthorne?
For Crowthorne 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 |
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 terraced house rear extension in Crowthorne?
Planning for a terraced house rear extension in Crowthorne 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.
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 Crowthorne like to extend?
Around Crowthorne 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 Crowthorne 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.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
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 Crowthorne
From Crowthorne, the nearest places we also cover are Sandhurst (1.6 miles) and Yateley (2.5 miles).
- Terraced house rear extension in Sandhurst
- Terraced house rear extension in Yateley
- Terraced house rear extension in Camberley
- Terraced house rear extension in Wokingham
- Terraced house rear extension in Bracknell
Other work in Crowthorne:
FAQ
Terraced house rear extension questions in Crowthorne
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
How much does a terraced house rear extension cost in Crowthorne?
As a guide, £2,300–£3,700 per square metre including VAT for a standard specification. For example, 3 m wide × 4.5 m deep (13.5 m²): about £31,000–£50,000 at that rate. Your written price follows the survey.
Do both neighbours need party wall notices?
Usually yes in England and Wales, because the extension often sits on or near both boundaries.
Is the site visit in Crowthorne free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
What postcode areas do you cover around Crowthorne?
Including RG40 and RG45, and the surrounding Berkshire area.
Do you handle building control in Crowthorne?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.