Hetton-le-Hole, County Durham
Single-storey rear extension in Hetton-le-Hole
Single-storey rear extension in Hetton-le-Hole: ground-floor space across the back of the house, usually for a kitchen, dining or family room. We measure the house, show you what the rules allow, price it in writing and build it.
We cover Hetton-le-Hole (DH4 and DH5) as part of our County Durham work. A depth of 3 to 4 metres keeps many single-storey rear extensions in Hetton-le-Hole within permitted development, subject to the house's planning history.
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 single-storey rear extension cost in Hetton-le-Hole?
Guide prices for a single-storey rear extension in Hetton-le-Hole start from our North East England rate of £1,710–£2,790 per square metre, including VAT. 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) | £20,500–£33,500 |
| 4 m wide × 5 m deep (20 m²) | £34,000–£56,000 |
| 4 m wide × 6 m deep (24 m²) | £41,000–£67,000 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a single-storey rear extension in Hetton-le-Hole?
Whether your single-storey rear extension in Hetton-le-Hole needs a planning application depends on its size, your house and any local restrictions.
In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part 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. 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 Hetton-le-Hole like to extend?
Terraces and semis are typical around Hetton-le-Hole. On terraces a single-storey rear extension across the back yard is usually the practical choice; semis often have room for more.
How a single-storey rear extension in Hetton-le-Hole comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
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.
Single-storey rear extensions near Hetton-le-Hole
From Hetton-le-Hole, the nearest places we also cover are Houghton-le-Spring (1.7 miles) and Seaham (4.4 miles).
- Single-storey rear extension in Houghton-le-Spring
- Single-storey rear extension in Seaham
- Single-storey rear extension in Ryhope
- Single-storey rear extension in Durham
- Single-storey rear extension in Chester-le-Street
Other work in Hetton-le-Hole:
FAQ
Single-storey rear extension questions in Hetton-le-Hole
What postcode areas do you cover around Hetton-le-Hole?
Including DH4 and DH5, and the surrounding County Durham area.
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.
Will the extension make the room behind it dark?
Not if it is designed well. Rooflights or a lantern over the old back room, and a wide opening into it, keep daylight reaching the middle of the house.
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.
Can you match the brick or stone on my Hetton-le-Hole 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 Hetton-le-Hole free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.