Side return extensions · Chesterfield

Side return extensions in Chesterfield

Our side return extensions service covers Chesterfield and the rest of Derbyshire. You get a fixed price in writing for the agreed specification, and one person co-ordinating the trades.

Covering Chesterfield

Chesterfield sits 23 miles north of Derby, with Staveley 3 miles to the north-east and Dronfield 4 miles to the north-west.

Homes in the East Midlands

Across the East Midlands you find everything from city terraces to modern estates and stone villages, so the right extension depends a lot on the street and the materials around it.

What is included in a side return extension in Chesterfield?

Side returns are small in area but heavy in detail: party walls, a glazed roof, and steelwork to take out the original back wall. We design the roof for light and drainage, agree the party wall process early, and keep the work tidy because access is often through the house.

  • Glazed or solid roof with rooflights
  • Drainage and new gully positions
  • Underfloor heating ready screed if wanted

How much does a side return extension cost in Chesterfield?

Typical ranges for side return extensions. Ground conditions, access and specification move the final figure, which we fix in writing before work starts.

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?

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 can affect a side return extension?

  • Access is often through the house, so we plan deliveries and protect floors.
  • Many terraces sit in conservation areas, where side extensions need planning permission.

How does the project run?

  1. Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
  2. Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
  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.

Your questions answered

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.

How long does a side return take?

About 10 to 14 weeks on site.

How do I get a price for side return extensions in Chesterfield?

Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.

Also covering

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

Planning an extension, loft or new home?

Get a guide price in two minutes, then book a free site visit.

CallGet a quote