Wraparound extensions · Corsham

Wraparound extensions in Corsham

From the first site visit to the final building control sign-off, we manage wraparound extensions in Corsham so you only have one company to deal with.

Covering Corsham

Corsham sits 19 miles south-west of Swindon, with Chippenham 3 miles to the north-east and Calne 8 miles to the east.

Homes in the South West

Homes in the South West range from coastal and rural properties in stone and slate to city terraces and modern estates, so extensions are designed to match the local materials.

What do you get with a wraparound extension?

Because it removes two external walls, a wraparound needs careful structural design and a good plan for the corner where the steels meet. We design, apply for any permissions, build and finish the shell, and can fit the kitchen as part of the same contract.

  • Party wall process with both neighbours if needed
  • Steel frame or goalpost for the corner opening
  • Glazing, insulation, plastering and electrics

What is the guide price for a wraparound extension in Corsham?

Use these ranges to budget for wraparound extensions; the survey turns them into a fixed price for the agreed specification.

Wraparound extensionsGuide price incl. VAT
Standard specification£3,400 to £3,800 per m²
Good specification£3,800 to £4,250 per m²
High specification£4,250 to £4,700 per m²

Planning and building rules in Corsham

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 wraparound extension is treated as one extension, and because it covers both the side and the rear it does not normally fit within permitted development. Most need householder planning permission, which usually takes around eight weeks once validated.

What can change the price or programme?

  • Roof water from an L-shape needs careful falls and outlets.
  • An open-plan space this size needs a heating plan, often underfloor heating.

What are the steps?

  1. Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
  2. We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
  3. Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
  4. Construction and completion. One site lead co-ordinates every trade through to the building control certificate.

Questions about a wraparound extension in Corsham

Can we keep part of the kitchen working?

Often, by sequencing the work so the old back wall comes out last. We agree a plan with you before starting.

Glazed roof or solid roof?

A mix usually works best: solid roof with rooflights over the kitchen and a glazed section over the dining area.

How do I get a price for wraparound extensions in Corsham?

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

Other towns nearby

Learn more about wraparound extensions, or see every project we cover in Corsham.

Planning an extension, loft or new home?

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