Side return extensions · Derbyshire

Side return extensions in Derbyshire

We design and build side return extensions throughout Derbyshire, with a fixed price in writing for the agreed specification and one point of contact.

Covering Derbyshire

Our coverage across Derbyshire includes Derby, Chesterfield, Long Eaton and Ilkeston.

Homes in the East Midlands

Housing in the East Midlands includes Victorian terraces, inter-war semis and newer estates, with stone-built villages in some areas where conservation controls apply.

What is a side return extension?

A side return extension builds over the narrow passage that runs beside the back of many Victorian and Edwardian terraced houses, widening the kitchen or dining room by a metre or two. It is usually combined with a glazed or part-glazed roof so the deeper room still gets daylight.

  • Structural steel to remove the side wall
  • Drainage and new gully positions
  • Plastering and making good to the old house

How much should I budget for a side return extension?

What side return extensions typically cost. These are guide ranges; the written quote for your house replaces them.

Side return extensionsGuide price incl. VAT
Standard specification£3,350 to £3,700 per m²
Good specification£3,700 to £4,150 per m²
High specification£4,150 to £4,550 per m²

What approvals does a side return extension need in England?

In England we deal with the council’s planning team for permission or a lawful development certificate, with building control (the council or a registered building control approver) for inspections, and with neighbours under the Party Wall etc. Act 1996 where it applies.

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 I think about before starting?

  • Most side returns touch a shared boundary, so the Party Wall etc. Act 1996 usually applies in England and Wales.
  • Many terraces sit in conservation areas, where side extensions need planning permission.

What are the steps?

  1. Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
  2. Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
  3. Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
  4. We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.

Questions about a side return extension in Derbyshire

How much does a side return extension cost?

Usually about £3,350 to £4,550 per square metre including VAT, which works out at around £35,000 to £55,000 for a typical side return before the kitchen.

Does a side return need planning permission?

In England it can be permitted development if it is single storey, no higher than 4 m and no wider than half the original house. Conservation areas are the main exception.

Can you visit a house in Derbyshire 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.

Side return extensions near Derbyshire

Learn more about side return extensions, or see every project we cover in Derbyshire.

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