Colne, Lancashire
Two-storey rear extension in Colne
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. If you live in Colne 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.
Colne is covered from our Lancashire round, including BB8, BB9 and BB18. Two-storey rear extensions suit semi-detached houses in Colne 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 Colne?
A two-storey rear extension in Colne is priced at £1,690–£2,540 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 × 5 m footprint, two floors (30 m²) | £51,000–£76,000 |
| 4 m × 6 m footprint, two floors (48 m²) | £81,000–£122,000 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a two-storey rear extension in Colne?
Whether your two-storey rear extension in Colne needs a planning application depends on its size, your house and any local restrictions.
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. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in Colne like to extend?
Stone and brick terraces are common around Colne. Where houses back onto a ginnel or alley, deliveries can come in from the rear, which makes the build tidier.
How a two-storey rear extension in Colne 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.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
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 Colne
We also build two-storey rear extensions in nearby Nelson (2.1 miles) and Brierfield (3.5 miles).
- Two-storey rear extension in Nelson
- Two-storey rear extension in Brierfield
- Two-storey rear extension in Barnoldswick
- Two-storey rear extension in Burnley
- Two-storey rear extension in Padiham
Other work in Colne:
FAQ
Two-storey rear extension questions in Colne
What postcode areas do you cover around Colne?
Including BB8, BB9 and BB18, and the surrounding Lancashire area.
How long does a rear extension take to build in Colne?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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.
Do you handle building control in Colne?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
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.
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.