Harringay, Greater London
Terraced house rear extension in Harringay
For homes in Harringay, a terraced house rear extension is often the simplest way to gain space without moving. Rear and side return extensions for terraces, with access through the house and two neighbours. We take it from survey to completion certificate.
Harringay and its postcode districts N4, N8 and N15 are part of our Greater London coverage. In Harringay 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 Harringay?
In Harringay, our guide for a terraced house rear extension is £2,660–£4,290 per square metre including VAT for a standard specification. London prices sit at the top of our range because of labour rates, access through the house, parking suspensions and skip licences.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4.5 m deep (13.5 m²) | £36,000–£58,000 |
| 3 m wide × 6 m deep (18 m²) | £48,000–£77,000 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a terraced house rear extension in Harringay?
Whether your terraced house rear extension in Harringay needs a planning application depends on its size, your house and any local restrictions.
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.
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 Harringay like to extend?
Much of Harringay is Victorian and Edwardian terraced housing with narrow back additions, which suits side returns, wraparounds and 3 metre rear extensions. Many streets are in conservation areas, gardens are short, and almost everything comes through the house or along a rear alley.
How a terraced house rear extension in Harringay comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
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 Harringay
We also build rear extensions for terraced houses in nearby St Ann's (0.4 miles) and Stroud Green (0.7 miles).
- Terraced house rear extension in St Ann's
- Terraced house rear extension in Stroud Green
- Terraced house rear extension in Seven Sisters
- Terraced house rear extension in Hornsey
- Terraced house rear extension in Crouch End
Other work in Harringay:
FAQ
Terraced house rear extension questions in Harringay
How long does a rear extension take to build in Harringay?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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.
Will my terrace be in a conservation area?
Many Victorian terraces are. Your council's map shows it; we check at the survey.
How much does a terraced house rear extension cost in Harringay?
As a guide, £2,660–£4,290 per square metre including VAT for a standard specification. For example, 3 m wide × 4.5 m deep (13.5 m²): about £36,000–£58,000 at that rate. Your written price follows the survey.
Do you handle building control in Harringay?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
What postcode areas do you cover around Harringay?
Including N4, N8 and N15, and the surrounding Greater London area.