Wraparound extensions in Blackheath

Covering Blackheath

Alongside Blackheath, we also cover Greenwich, Catford (2 miles to the south-west) and Eltham.

Homes in London

London projects often mean working on period terraces with neighbours on both sides, tight access through the house and conservation area controls, so careful planning and party wall work matter as much as the build.

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.

Steel frame or goalpost for the corner opening
Pitched, flat or glazed roof with rooflights
Glazing, insulation, plastering and electrics

What will a wraparound extension cost?

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

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

What approvals does a wraparound extension need in England?

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.

What should I think about before starting?

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

How does the project run?

Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
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

Does a wraparound need planning permission?

Usually yes. In England it combines a side and rear extension, which takes it outside permitted development in most cases.

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.

Do you work in Blackheath?

Yes. Blackheath is within our coverage for wraparound extensions, along with nearby Greenwich and Catford.

Wraparound extensions near Blackheath

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