Stockton-on-Tees, County Durham
Two-storey rear extension in Stockton-on-Tees
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. We design, get the approvals for and build two-storey rear extensions in Stockton-on-Tees and the surrounding area, with one contract from the first survey to building control sign-off.
Stockton-on-Tees is covered from our County Durham round, including TS17, TS18, TS19 and TS20. Two-storey rear extensions suit semi-detached houses in Stockton-on-Tees 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 Stockton-on-Tees?
A two-storey rear extension in Stockton-on-Tees is priced at £1,620–£2,430 per square metre including VAT as a guide, before kitchen fit-out and fees. North East prices are among the lowest in our range; former mining ground is the main foundation variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m × 5 m footprint, two floors (30 m²) | £48,500–£73,000 |
| 4 m × 6 m footprint, two floors (48 m²) | £78,000–£116,500 |
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 Stockton-on-Tees?
Whether your two-storey rear extension in Stockton-on-Tees needs a planning application depends on its size, your house and any local restrictions.
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 Stockton-on-Tees like to extend?
Terraces and semis are typical around Stockton-on-Tees. On terraces a single-storey rear extension across the back yard is usually the practical choice; semis often have room for more.
How a two-storey rear extension in Stockton-on-Tees 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.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
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 Stockton-on-Tees
Close by, we work in Billingham, about 1.8 miles away, and Thornaby-on-Tees, about 2.5 miles away.
- Two-storey rear extension in Billingham
- Two-storey rear extension in Thornaby-on-Tees
- Two-storey rear extension in Ingleby Barwick
- Two-storey rear extension in Middlesbrough
- Two-storey rear extension in Yarm
Other work in Stockton-on-Tees:
FAQ
Two-storey rear extension questions in Stockton-on-Tees
Do I need a party wall agreement?
In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.
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.
Is two-storey cheaper per square metre than single-storey?
Usually yes, because the foundations and roof are shared across twice the floor area. The total cost is higher.
Can you match the brick or stone on my Stockton-on-Tees house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Is the site visit in Stockton-on-Tees free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
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.