Wraparound extensions · Berkhamsted

Wraparound extensions in Berkhamsted

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

Covering Berkhamsted

Berkhamsted sits 10 miles west of St Albans, with Hemel Hempstead 5 miles to the east and Amersham 7 miles to the south.

Homes in the East of England

Across the East of England, newer estates often have integral garages and room for rear extensions, while older towns have Victorian terraces and conservation areas that shape what can be built.

What do you get with a wraparound extension?

A wraparound extension combines a side return and a rear extension into one L-shaped build, giving the biggest possible ground-floor space on terraced and semi-detached houses. It usually creates a large open-plan kitchen, dining and living area across the back of the house.

  • Party wall process with both neighbours if needed
  • Pitched, flat or glazed roof with rooflights
  • Optional kitchen supply and installation

How much should I budget for a wraparound extension?

Guide prices for wraparound extensions, including VAT where it applies. Your fixed price is confirmed in writing after the survey.

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 Berkhamsted?

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?

  • The corner steel connection is the critical detail and is designed by a structural engineer.
  • Roof water from an L-shape needs careful falls and outlets.

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. 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.

Questions about a wraparound extension in Berkhamsted

How much does a wraparound extension cost?

Typically £3,400 to £4,700 per square metre including VAT. Many come in between £85,000 and £120,000 before the kitchen.

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.

Can you visit a house in Berkhamsted 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 Berkhamsted

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

Planning an extension, loft or new home?

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

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