Wraparound extensions in Chelmsford

Covering Chelmsford

Our coverage around Chelmsford (CM1, CM99) also includes Billericay, Witham and Maldon.

Homes in the East of England

The East of England has a large stock of post-war and modern estate housing alongside period homes in market towns, which makes garage conversions, single-storey extensions and loft conversions popular.

What does a wraparound extension involve?

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
Steel frame or goalpost for the corner opening
Optional kitchen supply and installation

What is the guide price for a wraparound extension in Chelmsford?

Indicative costs for wraparound extensions. London and the South East usually sit towards the top of each range.

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

How is a wraparound extension approved in Chelmsford?

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.

What are the steps?

Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.

What people ask before starting

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.

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.

Do you work in Chelmsford?

Yes. Chelmsford is within our coverage for wraparound extensions, along with nearby Billericay and Witham.

Also covering

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