Covering Lancashire
We cover Lancashire, including Preston, Burnley, Blackburn and Blackpool, and the towns around them.
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 does a garden annexe involve?
We design annexes as permanent buildings with proper foundations, insulation and services, and we prepare the planning case showing how the annexe will be used as part of the main home. Connections for water, drainage and power are planned from the start.
- Design and planning application
- Brick, block or timber-frame structure
- Kitchenette and shower room
How much does a garden annexe cost in Lancashire?
Use these ranges to budget for garden annexes; the survey turns them into a fixed price for the agreed specification.
| Garden annexes | Guide price incl. VAT |
|---|---|
| Standard specification | £2,400 to £2,900 per m² |
| Good specification | £2,900 to £3,400 per m² |
| High specification | £3,400 to £3,900 per m² |
Planning and building rules in Lancashire
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.
A self-contained annexe used for sleeping and living normally needs planning permission in England.
What should Lancashire homeowners check first?
- Drainage may need a pump if the garden falls away from the sewer.
- A level threshold and wider doors make the annexe suitable for later life.
How does the project run?
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
- Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
- We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.
Your questions answered
Do I need planning permission for a garden annexe?
Usually yes, because people will sleep in it. Outbuilding permitted development does not cover living accommodation.
How much does a garden annexe cost?
Around £2,400 to £3,900 per square metre including VAT, depending on finish and services.
Can you visit a house in Lancashire to quote?
Yes. After a short call we arrange a site visit to measure up and agree what the design needs to do, then send a written price.
Garden annexes near Lancashire
- Garden annexes in Preston
- Garden annexes in Burnley
- Garden annexes in Blackburn
- Garden annexes in Blackpool
- Garden annexes in Morecambe
- Garden annexes in Lancaster
- Garden annexes in Lytham St Annes
- Garden annexes in Skelmersdale
- Garden annexes in Leyland
- Garden annexes in Accrington
- Garden annexes in Chorley
- Garden annexes in Darwen
- Garden annexes in Thornton-Cleveleys
- Garden annexes in Nelson
- Garden annexes in Fleetwood
- Garden annexes in Ormskirk
- Garden annexes in Rawtenstall
Learn more about garden annexes, or see every project we cover in Lancashire.