Gosforth, Tyne and Wear
Two-storey rear extension in Gosforth
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. If you live in Gosforth 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.
Gosforth and its postcode districts NE2, NE3 and NE7 are part of our Tyne and Wear coverage. In Gosforth, a two-storey rear extension is worth comparing with the cost of moving once stamp duty, agents' and legal fees are counted.
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 Gosforth?
A two-storey rear extension in Gosforth 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 Gosforth?
Whether your two-storey rear extension in Gosforth 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. 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 Gosforth like to extend?
Terraces and semis are typical around Gosforth. 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 Gosforth 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.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
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 Gosforth
Neighbouring places we cover include Newcastle upon Tyne (1.8 miles) and Gateshead (2.7 miles).
- Two-storey rear extension in Newcastle upon Tyne
- Two-storey rear extension in Gateshead
- Two-storey rear extension in Wallsend
- Two-storey rear extension in Felling
- Two-storey rear extension in Hebburn
Other work in Gosforth:
FAQ
Two-storey rear extension questions in Gosforth
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 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.
What is the 45-degree rule?
Many councils check that a two-storey extension does not cross a 45-degree line drawn from the nearest habitable window of the neighbouring house. We test it at the first drawing.
Is the site visit in Gosforth 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.
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.