Rainham, Greater London
Terraced house rear extension in Rainham
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 Rainham and the surrounding area, with one contract from the first survey to building control sign-off.
Rainham is covered from our Greater London round, including RM10, RM12 and RM13. In Rainham 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 Rainham?
Guide prices for a terraced house rear extension in Rainham start from our London rate of £2,660–£4,290 per square metre, including VAT. 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 |
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 Rainham?
Planning for a terraced house rear extension in Rainham follows the English householder rules.
English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres 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 Rainham like to extend?
Much of Rainham is 1920s and 1930s semis and short terraces with longer gardens than inner London, which suit full-width single-storey rear extensions. Parking suspensions, skip licences and controlled hours on residential streets shape the programme more than the build itself.
How a terraced house rear extension in Rainham 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.
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 Rainham
From Rainham, the nearest places we also cover are Elm Park (1.8 miles) and Belvedere (2.6 miles).
- Terraced house rear extension in Elm Park
- Terraced house rear extension in Belvedere
- Terraced house rear extension in Dagenham
- Terraced house rear extension in Hornchurch
- Terraced house rear extension in Thamesmead
Other work in Rainham:
FAQ
Terraced house rear extension questions in Rainham
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.
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.
Can you build without side access?
Yes. Materials come through the house in protected runs or over the roof by crane on tight sites.
Can you match the brick or stone on my Rainham house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
What postcode areas do you cover around Rainham?
Including RM10, RM12 and RM13, and the surrounding Greater London area.
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.