Single-storey extensions · Crewe

Single-storey extensions in Crewe

Planning single-storey extensions in Crewe? We design and build them for houses across Cheshire, and we fix the price for the agreed specification in writing before any building work starts.

Covering Crewe

Alongside Crewe, we also cover Winsford, Kidsgrove (8 miles to the east) and Congleton.

Homes in the North West

The North West has long rows of Victorian terraced houses in its towns and cities, alongside inter-war semis and post-war estates, so rear extensions, dormer lofts and kitchen extensions are common projects.

What does a single-storey extension involve?

A single-storey extension adds one level of new floor space to the back or side of a house, usually to open up a kitchen, dining or family room. It is the most common way to gain space without moving, and many can be built without a planning application.

  • Measured survey and design drawings
  • Building control application and inspections
  • Brickwork, roof, glazing and insulation

How much does a single-storey extension cost in Crewe?

Indicative costs for single-storey extensions. London and the South East usually sit towards the top of each range.

Single-storey extensionsGuide price incl. VAT
Standard specification£2,600 to £3,000 per m²
Good specification£3,000 to £3,500 per m²
High specification£3,500 to £4,000 per m²

How is a single-storey extension approved in Crewe?

English projects need planning clearance from the local council, building regulations sign-off from building control, and party wall notices where the work is on or near a shared boundary. We prepare and manage all three.

In England a single-storey rear extension can often go ahead under permitted development: up to 3 m deep on an attached house or 4 m on a detached one, no higher than 4 m, with eaves no higher than 3 m within 2 m of a boundary. Deeper extensions, up to 6 m or 8 m, need prior approval from the council first.

What should Crewe homeowners check first?

  • Building on or near a shared boundary usually means serving a party wall notice in England and Wales.
  • Large glazed areas need to meet energy rules, which can shape the size of doors and rooflights.

What happens after I enquire?

  1. Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
  2. We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
  3. Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
  4. Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

Single-storey extensions: common questions

Do I need planning permission for a single-storey extension?

Often not in England, if the extension stays within permitted development limits: 3 m deep on an attached house or 4 m on a detached house, and no higher than 4 m. Larger ones need prior approval or a planning application. Wales, Scotland and Northern Ireland have their own rules.

How long does a single-storey extension take to build?

The build itself usually takes 10 to 16 weeks once work starts on site. Design, approvals and ordering usually add 6 to 12 weeks before that.

Can you visit a house in Crewe to quote?

Yes. After a short call we arrange a site visit to measure up and agree what the design needs to do, then send a written price.

Single-storey extensions near Crewe

Learn more about single-storey extensions, or see every project we cover in Crewe.

Planning an extension, loft or new home?

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