Bishopsworth, Somerset
Two-storey rear extension in Bishopsworth
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. If you live in Bishopsworth and want to know what a two-storey rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Bishopsworth is covered from our Somerset round, including BS3, BS13 and BS14. In Somerset we check the neighbours' rear windows first, because the upper floor is where most two-storey schemes win or lose planning.
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 two-storey rear extension cost in Bishopsworth?
In Bishopsworth, our guide for a two-storey rear extension is £1,870–£2,810 per square metre including VAT for a standard specification. South West prices run slightly above our West Midlands baseline; natural stone to match the house is the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m × 5 m footprint, two floors (30 m²) | £56,000–£84,000 |
| 4 m × 6 m footprint, two floors (48 m²) | £90,000–£135,000 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a two-storey rear extension in Bishopsworth?
The planning route for a two-storey rear extension in Bishopsworth is set by England's householder rules and your council.
England's rules allow a rear extension of more than one storey without an application only when it is no deeper than 3 metres and at least 7 metres from the boundary opposite the rear wall, and never on designated land. Most two-storey schemes need householder planning permission.
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 Bishopsworth like to extend?
Stone-built and rendered houses are common around Bishopsworth, so matching the walling is a design decision in its own right: natural stone, reconstituted stone or a render finish across old and new.
How a two-storey rear extension in Bishopsworth 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.
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.
Two-storey rear extensions near Bishopsworth
We also build two-storey rear extensions in nearby Bristol (3.0 miles) and Keynsham (5.3 miles).
- Two-storey rear extension in Bristol
- Two-storey rear extension in Keynsham
- Two-storey rear extension in Kingswood
- Two-storey rear extension in Nailsea
- Two-storey rear extension in Mangotsfield
Other work in Bishopsworth:
FAQ
Two-storey rear extension questions in Bishopsworth
Is the site visit in Bishopsworth free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Do I need planning permission for a rear extension in Bishopsworth?
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.
What is the 45-degree rule?
Many councils check that a two-storey extension does not cross a 45-degree line drawn from the nearest habitable window of the neighbouring house. We test it at the first drawing.
Can you match the brick or stone on my Bishopsworth 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 Bishopsworth?
Including BS3, BS13 and BS14, and the surrounding Somerset area.
Do you handle building control in Bishopsworth?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.