Wraparound extensions · Northampton

Wraparound extensions in Northampton

Planning wraparound extensions in Northampton? We design and build them for houses across Northamptonshire, and we fix the price for the agreed specification in writing before any building work starts.

Covering Northampton

We work in Northampton (NN1) and the places around it, including Wellingborough, Towcester and Daventry.

Homes in the East Midlands

The East Midlands combines red-brick terraces in the cities with a lot of post-war and modern estate housing, so rear extensions, garage conversions and loft conversions are all common.

What is included in a wraparound extension in Northampton?

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.

  • Design, planning drawings and structural calculations
  • Party wall process with both neighbours if needed
  • Pitched, flat or glazed roof with rooflights

How much should I budget for a wraparound extension?

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

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

How is a wraparound extension approved in Northampton?

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 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 affect a wraparound extension?

  • The corner steel connection is the critical detail and is designed by a structural engineer.
  • Both neighbours may need party wall notices.

From first call to completion

  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. Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
  4. We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.

Wraparound extensions: common questions

How long does a wraparound take?

Around 12 to 18 weeks on site after approvals.

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.

Can you visit a house in Northampton 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.

Wraparound extensions near Northampton

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

Planning an extension, loft or new home?

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

CallGet a quote