Covering Blackburn
Blackburn is about 9 miles east of Preston. We also cover Darwen (4 miles to the south), Accrington and Chorley.
Homes in the North West
The North West has long rows of Victorian terraced houses in its towns and cities, alongside inter-war semis and post-war estates, so rear extensions, dormer lofts and kitchen extensions are common projects.
What is included in a wraparound extension in Blackburn?
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
- Steel frame or goalpost for the corner opening
What will a wraparound extension cost?
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 |
Planning and building rules in Blackburn
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.
What can change the price or programme?
- The corner steel connection is the critical detail and is designed by a structural engineer.
- An open-plan space this size needs a heating plan, often underfloor heating.
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.
- 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.
Your questions answered
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.
How long does a wraparound take?
Around 12 to 18 weeks on site after approvals.
Do you work in Blackburn?
Yes. Blackburn is within our coverage for wraparound extensions, along with nearby Darwen and Accrington.
Wraparound extensions near Blackburn
- Wraparound extensions in Darwen
- Wraparound extensions in Accrington
- Wraparound extensions in Chorley
- Wraparound extensions in Rawtenstall
Learn more about wraparound extensions, or see every project we cover in Blackburn.