Houghton-le-Spring, County Durham
Glazed rear extension in Houghton-le-Spring
We plan and build glazed and glass-box rear extensions for homeowners in Houghton-le-Spring. Full-height glass, slim frames and big rooflights for the most open rear room. Start with a free site visit, then a written price once the design is agreed.
Houghton-le-Spring and its postcode districts DH4, SR3 and SR4 are part of our County Durham coverage. If your garden in Houghton-le-Spring faces south, expect us to talk about overhangs and solar-control glass before frame colours.
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 glazed rear extension cost in Houghton-le-Spring?
For Houghton-le-Spring we work from the North East England rate: £2,520–£4,320 per square metre of new floor, including VAT, standard specification. 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) | £30,000–£52,000 |
| 4 m wide × 6 m deep (24 m²) | £60,500–£103,500 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a glazed rear extension in Houghton-le-Spring?
Here is how the rules in England apply to a glazed rear extension in Houghton-le-Spring.
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.
New fabric must meet Approved Document L (2021 edition incorporating 2023 amendments): walls 0.18, roof 0.15 and floor 0.18 W/m²K, windows 1.4 W/m²K or Band B. Under the simple route, new windows, doors and rooflights should not exceed 25% of the extension floor area plus any openings removed; more glass is possible with a whole-house calculation.
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 Houghton-le-Spring like to extend?
Brick terraces, colliery houses and post-war semis make up much of Houghton-le-Spring. Former mining areas often need a coal mining risk check before foundations are designed.
How a glazed rear extension in Houghton-le-Spring 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.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
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.
Glazed rear extensions near Houghton-le-Spring
We also build glazed and glass-box rear extensions in nearby Hetton-le-Hole (1.7 miles) and Ryhope (4.3 miles).
- Glazed rear extension in Hetton-le-Hole
- Glazed rear extension in Ryhope
- Glazed rear extension in Chester-le-Street
- Glazed rear extension in Washington
- Glazed rear extension in Seaham
Other work in Houghton-le-Spring:
FAQ
Glazed rear extension questions in Houghton-le-Spring
Is the site visit in Houghton-le-Spring free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Do I need planning permission for a rear extension in Houghton-le-Spring?
Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.
Is a glass box a conservatory?
No. It is built to Building Regulations as part of the house, with insulated floor and roof, so it is usable all year.
Do you handle building control in Houghton-le-Spring?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
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.
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.