What is a wraparound extension?

A wraparound extension combines a side return and a rear extension into one L-shaped addition. It gives the largest possible ground floor, often creating an open-plan kitchen, dining and living space across the whole width of the house.
How much does a wraparound extension cost in Peterlee?
In Peterlee, a wraparound extension typically costs £2,000–£2,900 per m² of floor area, including VAT at 20% (standard rate). For a typical 28 m² project that is roughly £56,000–£81,000. The guide for Peterlee reflects typical costs in the North East, roughly 10% below the UK-wide figure. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (20 m²) | £40,000–£58,000 |
| Typical project (28 m²) | £56,000–£81,000 |
| Larger project (39 m²) | £78,000–£113,000 |
| Rate per m² | £2,000–£2,900 |
What moves the price most:
- Access for materials on terraced streets
- Total footprint and the amount of glazing
- Kitchen and flooring specification
- Steelwork and propping of the existing house
Your exact price depends on the survey and drawings. The guide price tool gives a quick range in the meantime.
Do you need planning permission for a wraparound extension in Peterlee?
Approvals for a wraparound extension in Peterlee follow the rules for England. In England a wraparound extension combines side and rear elements, which normally takes it outside permitted development, so a householder planning application is made.
Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.
Our first visit includes a check of your planning history, so you know the route before paying for drawings.
What we handle
On a typical wraparound extension we handle:
- Structural engineer’s design for steels and supports
- Party wall notices and surveyor liaison
- Walls, roof and glazing
- Foundations and drainage
- Building control completion
- Design and planning application
How long does it take?
Allow 12 to 18 weeks on site. Allow time beforehand for drawings and approvals, usually 3 to 4 months.
Building in Peterlee
The North East has many terraced streets and post-war semis, where rear extensions and loft conversions are popular ways to gain space.
We work across Peterlee and neighbouring areas such as Seaham, Hartlepool and Houghton-Le-Spring. Postcodes we cover in Peterlee include SR8.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Build and handover
Work follows the agreed programme, with inspections along the way and a completion certificate at the end.
Questions about wraparound extensions in Peterlee
What about the old back addition?
The side wall of the back addition is usually removed and replaced with a steel beam, so the old kitchen joins the new space.
How long does it take to build?
Around 12 to 18 weeks on site after approvals. Design, planning and party wall matters usually take 3 to 4 months beforehand.
Is a wraparound worth it?
It gives the biggest ground-floor space without going upwards. Whether it adds value depends on your street and house, so we suggest checking local sale prices before committing.
Who approves a wraparound extension in Peterlee?
Planning matters in Peterlee go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
How much does a wraparound extension cost in Peterlee?
In Peterlee, a wraparound extension typically costs £2,000–£2,900 per m² of floor area, including VAT at 20% (standard rate). A typical 28 m² project comes to roughly £56,000–£81,000. Your fixed price depends on the survey and drawings.
