Blyth, Northumberland
Bungalow rear extension in Blyth
We plan and build rear extensions for bungalows for homeowners in Blyth. Single-storey rear extensions that keep everything on one level. Start with a free site visit, then a written price once the design is agreed.
Blyth is covered from our Northumberland round, including NE23 and NE24. For bungalows in Northumberland, a rear extension is the usual way to add space without adding stairs.
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 bungalow rear extension cost in Blyth?
A bungalow rear extension in Blyth is priced at £1,660–£2,700 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 wide × 4 m deep (12 m²) | £20,000–£32,500 |
| 4 m wide × 6 m deep (24 m²) | £40,000–£65,000 |
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 bungalow rear extension in Blyth?
Whether your bungalow rear extension in Blyth needs a planning application depends on its size, your house and any local restrictions.
Under England's householder permitted development rules you can usually add 3 metres at the back of an attached house, or 4 metres on a detached house, without a planning application, as long as the extension stays under 4 metres high and its eaves stay under 3 metres where it is within 2 metres of a boundary.
England also has the larger home extension route: a single-storey rear extension of up to 6 metres on an attached house or 8 metres on a detached house, after prior approval from the council. The council notifies your neighbours and has 42 days to decide; the fee is £249 (£310 for applications made from 8 December 2026). The route is not available on designated land such as conservation areas.
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 Blyth like to extend?
Brick terraces, colliery houses and post-war semis make up much of Blyth. Former mining areas often need a coal mining risk check before foundations are designed.
How a bungalow rear extension in Blyth 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.
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.
Bungalow rear extensions near Blyth
We also build rear extensions for bungalows in nearby Bedlington (3.4 miles) and Ashington (4.1 miles).
- Bungalow rear extension in Bedlington
- Bungalow rear extension in Ashington
- Bungalow rear extension in Cramlington
- Bungalow rear extension in Whitley Bay
- Bungalow rear extension in Morpeth
Other work in Blyth:
FAQ
Bungalow rear extension questions in Blyth
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.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
How deep can I extend?
The same limits as a house: 3 or 4 metres in England, more with prior approval.
Do you handle building control in Blyth?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Is the site visit in Blyth free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How much does a bungalow rear extension cost in Blyth?
As a guide, £1,660–£2,700 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £20,000–£32,500 at that rate. Your written price follows the survey.