Covering Hornchurch
Hornchurch sits 15 miles east of London, with Romford 2 miles to the north-west and Dagenham 2 miles to the west.
Homes in London
Terraced houses dominate many London neighbourhoods, so most projects involve shared walls, narrow access and a party wall process. Conservation areas are widespread, and some boroughs have their own mansard and basement guidance.
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.
- Pitched, flat or glazed roof with rooflights
- Glazing, insulation, plastering and electrics
- 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 extensions | Guide 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 Hornchurch
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 affect a wraparound extension?
- 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?
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
- Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
- Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.
Wraparound extensions: common questions
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.
How long does a wraparound take?
Around 12 to 18 weeks on site after approvals.
Do you work in Hornchurch?
Yes. Hornchurch is within our coverage for wraparound extensions, along with nearby Romford and Dagenham.
Other towns nearby
- Wraparound extensions in Romford
- Wraparound extensions in Dagenham
- Wraparound extensions in Becontree
- Wraparound extensions in South Ockendon
Learn more about wraparound extensions, or see every project we cover in Hornchurch.

