Bushey, Hertfordshire
Two-storey rear extension in Bushey
We plan and build two-storey rear extensions for homeowners in Bushey. A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. Start with a free site visit, then a written price once the design is agreed.
Bushey and its postcode districts WD1, WD19 and WD23 are part of our Hertfordshire coverage. Two-storey rear extensions suit semi-detached houses in Bushey best, where the extra bedroom matters as much as the bigger kitchen.
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 Bushey?
Guide prices for a two-storey rear extension in Bushey start from our East of England rate of £1,910–£2,860 per square metre, including VAT. East of England prices run slightly above our West Midlands baseline; clay soils near trees are the main foundation variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m × 5 m footprint, two floors (30 m²) | £57,000–£86,000 |
| 4 m × 6 m footprint, two floors (48 m²) | £91,500–£137,500 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a two-storey rear extension in Bushey?
Planning for a two-storey rear extension in Bushey follows the English householder rules.
A two-storey rear extension can be permitted development in England only if it projects no more than 3 metres, stays at least 7 metres from the rear boundary, matches the existing roof pitch and has obscure-glazed upper side windows. In practice most double-storey rear extensions go through a householder planning application.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Bushey like to extend?
Bushey mixes Victorian terraces with 1930s semis, so both side returns and full-width kitchen extensions suit houses here.
How a two-storey rear extension in Bushey comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
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.
Two-storey rear extensions near Bushey
We also build two-storey rear extensions in nearby Watford (1.7 miles) and Harrow Weald (2.5 miles).
- Two-storey rear extension in Watford
- Two-storey rear extension in Harrow Weald
- Two-storey rear extension in West Watford
- Two-storey rear extension in North Watford
- Two-storey rear extension in Wealdstone
Other work in Bushey:
FAQ
Two-storey rear extension questions in Bushey
What postcode areas do you cover around Bushey?
Including WD1, WD19 and WD23, and the surrounding Hertfordshire area.
Can you match the brick or stone on my Bushey house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Can it be built on a terraced house?
Sometimes, but the upper floor is harder to get through planning on a terrace because of the effect on neighbours. A single-storey extension with a loft conversion is often an easier route.
Is the site visit in Bushey free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How long does a rear extension take to build in Bushey?
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.