Ferndown, Dorset
Two-storey rear extension in Ferndown
We plan and build two-storey rear extensions for homeowners in Ferndown. 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.
Ferndown is covered from our Dorset round, including BH22. In Dorset 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 Ferndown?
Guide prices for a two-storey rear extension in Ferndown start from our South West England rate of £1,870–£2,810 per square metre, including VAT. 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 |
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 two-storey rear extension in Ferndown?
Planning for a two-storey rear extension in Ferndown 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. 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 Ferndown like to extend?
Ferndown has Victorian terraces nearer the centre and post-war semis on the edges. Sloping gardens are frequent, which affects floor levels and steps down to the patio.
How a two-storey rear extension in Ferndown comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
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.
Two-storey rear extensions near Ferndown
We also build two-storey rear extensions in nearby Wimborne Minster (4.0 miles) and Verwood (4.9 miles).
- Two-storey rear extension in Wimborne Minster
- Two-storey rear extension in Verwood
- Two-storey rear extension in Canford Heath
- Two-storey rear extension in Broadstone
- Two-storey rear extension in Ringwood
Other work in Ferndown:
FAQ
Two-storey rear extension questions in Ferndown
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 you handle building control in Ferndown?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Will we need to move out?
Rarely. The first-floor opening is made late in the job and sealed with temporary screens.
How much does a two-storey rear extension cost in Ferndown?
As a guide, £1,870–£2,810 per square metre including VAT for a standard specification. For example, 3 m × 5 m footprint, two floors (30 m²): about £56,000–£84,000 at that rate. Your written price follows the survey.
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.
What postcode areas do you cover around Ferndown?
Including BH22, and the surrounding Dorset area.