Brackley, Northamptonshire
Terraced house rear extension in Brackley
Rear and side return extensions for terraces, with access through the house and two neighbours. If you live in Brackley and want to know what a terraced house rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Brackley and its postcode districts NN13 are part of our Northamptonshire coverage. In Brackley we plan the delivery route through the house and the skip licence before anything else.
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 Brackley?
Guide prices for a terraced house rear extension in Brackley start from our East Midlands rate of £1,990–£3,200 per square metre, including VAT. East Midlands prices sit a little below our West Midlands baseline.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4.5 m deep (13.5 m²) | £27,000–£43,000 |
| 3 m wide × 6 m deep (18 m²) | £36,000–£57,500 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a terraced house rear extension in Brackley?
Whether your terraced house rear extension in Brackley needs a planning application depends on its size, your house and any local restrictions.
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.
The Party Wall etc. Act 1996 applies in England: you serve notice two months before work to a shared wall, and one month before digging foundations within 3 metres (or 6 metres for deeper foundations) of a neighbour's building. Neighbours can agree in writing; if they dissent, surveyors agree an award.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in Brackley like to extend?
Brackley has plenty of inter-war semis and bungalows, and single-storey rear extensions suit both.
How a terraced house rear extension in Brackley 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.
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.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Terraced house rear extensions near Brackley
We also build rear extensions for terraced houses in nearby Buckingham (7.3 miles) and Banbury (8.4 miles).
- Terraced house rear extension in Buckingham
- Terraced house rear extension in Banbury
- Terraced house rear extension in Bicester
- Terraced house rear extension in Daventry
- Terraced house rear extension in Kidlington
Other work in Brackley:
FAQ
Terraced house rear extension questions in Brackley
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.
Is the site visit in Brackley free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How do you keep the house clean?
Dust screens, floor protection and a single protected route through the house.
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.
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.
How much does a terraced house rear extension cost in Brackley?
As a guide, £1,990–£3,200 per square metre including VAT for a standard specification. For example, 3 m wide × 4.5 m deep (13.5 m²): about £27,000–£43,000 at that rate. Your written price follows the survey.