Wraparound extensions in Dartford

Covering Dartford

We work in Dartford (DA1) and the places around it, including Bexley, Swanley and Welling.

Homes in the South East

The South East has a lot of 1930s and post-war semi-detached housing, well suited to rear extensions and hip-to-gable loft conversions, alongside period properties in conservation areas that need a more careful design.

What is included in a wraparound extension in Dartford?

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.

Design, planning drawings and structural calculations
Party wall process with both neighbours if needed
Glazing, insulation, plastering and electrics

What will a wraparound extension cost?

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

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.

What happens after I enquire?

Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
Construction and completion. One site lead co-ordinates every trade through to the building control certificate.

Wraparound extensions: common questions

How long does a wraparound take?

Around 12 to 18 weeks on site after approvals.

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 Dartford?

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

Wraparound extensions near Dartford

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