Whiston, Merseyside
Terraced house rear extension in Whiston
Thinking about a terraced house rear extension in Whiston? Rear and side return extensions for terraces, with access through the house and two neighbours. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.
Whiston sits in Merseyside, with postcode districts including L35, WA9 and WA10. Terraced streets make up much of the housing in parts of Merseyside, 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 Whiston?
A terraced house rear extension in Whiston is priced at £1,930–£3,100 per square metre including VAT as a guide, before kitchen fit-out and fees. North West prices sit below our West Midlands baseline; access on terraced streets is the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4.5 m deep (13.5 m²) | £26,000–£42,000 |
| 3 m wide × 6 m deep (18 m²) | £34,500–£56,000 |
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 Whiston?
Planning for a terraced house rear extension in Whiston 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.
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 Whiston like to extend?
Stone and brick terraces are common around Whiston. Where houses back onto a ginnel or alley, deliveries can come in from the rear, which makes the build tidier.
How a terraced house rear extension in Whiston 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.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Terraced house rear extensions near Whiston
Close by, we work in Prescot, about 0.8 miles away, and Rainhill, about 1.0 miles away.
- Terraced house rear extension in Prescot
- Terraced house rear extension in Rainhill
- Terraced house rear extension in Huyton
- Terraced house rear extension in St Helens
- Terraced house rear extension in Belle Vale
Other work in Whiston:
FAQ
Terraced house rear extension questions in Whiston
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.
How long does a rear extension take to build in Whiston?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
How do you keep the house clean?
Dust screens, floor protection and a single protected route through the house.
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 I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
Do I need planning permission for a rear extension in Whiston?
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.