Stowmarket, Suffolk
Two-storey rear extension in Stowmarket
Two-storey rear extension in Stowmarket: a larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. We measure the house, show you what the rules allow, price it in writing and build it.
Stowmarket sits in Suffolk, with postcode districts including IP14. In Suffolk 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 Stowmarket?
For Stowmarket we work from the East of England rate: £1,910–£2,860 per square metre of new floor, including VAT, standard specification. 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 |
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 Stowmarket?
Here is how the rules in England apply to a two-storey rear extension in Stowmarket.
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 Stowmarket like to extend?
Post-war semis and newer estates are typical of Stowmarket, and many have room for a full-width extension. Shrinkable clay is common in the East of England, so foundations near trees and hedges are designed to NHBC-style depth guidance.
How a two-storey rear extension in Stowmarket 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.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
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 Stowmarket
From Stowmarket, the nearest places we also cover are Ipswich (11.2 miles) and Bury St Edmunds (12.8 miles).
- Two-storey rear extension in Ipswich
- Two-storey rear extension in Bury St Edmunds
- Two-storey rear extension in Kesgrave
- Two-storey rear extension in Diss
- Two-storey rear extension in Woodbridge
Other work in Stowmarket:
FAQ
Two-storey rear extension questions in Stowmarket
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.
Do you handle building control in Stowmarket?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Can I add an en-suite upstairs?
Yes. We plan the soil pipe route early so the bathroom sits where drainage works without boxing through the room below.
Is the site visit in Stowmarket 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 Stowmarket?
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 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.