Rear extension design, approvals and build across the UKCall 0800 088 6341 · Online guide price
Rear Extensionsrear-extensions.co.uk 0800 088 6341 Get a guide price

Darras Hall, Northumberland

Single-storey rear extension in Darras Hall

For homes in Darras Hall, a single-storey rear extension is often the simplest way to gain space without moving. Ground-floor space across the back of the house, usually for a kitchen, dining or family room. We take it from survey to completion certificate.

Darras Hall is covered from our Northumberland round, including NE18 and NE20. A single-storey rear extension in Darras Hall is mostly built from the garden side, so the house stays usable for most of the job.

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 Darras Hall?

Guide prices for a single-storey rear extension in Darras Hall 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.

Single-storey rear extension prices in Darras Hall
SizeGuide 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

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 single-storey rear extension in Darras Hall?

Planning for a single-storey rear extension in Darras Hall follows the English householder rules.

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.

If 3 or 4 metres is not enough, England's prior approval route allows 6 metres on a terraced or semi-detached house and 8 metres on a detached house for a single-storey rear extension. Neighbours are consulted, the council decides within 42 days, and the fee is £249, rising to £310 from 8 December 2026.

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 Darras Hall like to extend?

Terraces and semis are typical around Darras Hall. 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 Darras Hall comes together

  1. 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.

  2. Drawings and budget

    Floor plans and elevations for the options, each with a guide price.

  3. Approvals

    Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.

  4. 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.

Single-storey rear extensions near Darras Hall

We also build single-storey rear extensions in nearby Ponteland (1.3 miles) and Newburn (3.4 miles).

Other work in Darras Hall:

All rear extensions in Darras Hall

FAQ

Single-storey rear extension questions in Darras Hall

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.

Do I need planning permission for a rear extension in Darras Hall?

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 flat roof or a pitched roof better?

A warm flat roof keeps the extension low under first-floor windows and suits a roof lantern; a pitched or lean-to roof gives a vaulted ceiling. Both last for decades when built properly.

How long does a rear extension take to build in Darras Hall?

Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.

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.

How much does a single-storey rear extension cost in Darras Hall?

As a guide, £1,710–£2,790 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £20,500–£33,500 at that rate. Your written price follows the survey.

Next step

See what your rear extension would cost

Get a guide price online in a couple of minutes, or book a free site visit and we'll measure up and talk you through the planning route.

CallGuide price