Dorking, Surrey
Terraced house rear extension in Dorking
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 Dorking and the surrounding area, with one contract from the first survey to building control sign-off.
We cover Dorking (KT23 and RH4) as part of our Surrey work. On a Dorking terrace both neighbours usually need party wall notices or agreement, so we talk to them early.
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 Dorking?
Guide prices for a terraced house rear extension in Dorking start from our South East England rate of £2,300–£3,700 per square metre, including VAT. 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 |
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 Dorking?
Planning for a terraced house rear extension in Dorking follows the English householder rules.
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. 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 Dorking like to extend?
Commuter semis and detached houses make up much of Dorking, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a terraced house rear extension in Dorking 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.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
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 Dorking
Close by, we work in Great Bookham, about 3.7 miles away, and Leatherhead, about 4.4 miles away.
- Terraced house rear extension in Great Bookham
- Terraced house rear extension in Leatherhead
- Terraced house rear extension in Ashtead
- Terraced house rear extension in Reigate
- Terraced house rear extension in Redhill
Other work in Dorking:
FAQ
Terraced house rear extension questions in Dorking
Do I need planning permission for a rear extension in Dorking?
Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.
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.
Will my terrace be in a conservation area?
Many Victorian terraces are. Your council's map shows it; we check at the survey.
Is the site visit in Dorking free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can you match the brick or stone on my Dorking 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 Dorking?
Including KT23 and RH4, and the surrounding Surrey area.