Covering Lancashire
Our basement and cellar conversions service in Lancashire covers Preston, Burnley, Blackburn and Blackpool and more.
Homes in the North West
Terraced housing is a defining feature of many North West towns, which brings party walls and narrow access into most projects, with more space to extend on suburban semis.
What is included in a basement conversion in Lancashire?
A basement conversion turns an existing cellar into dry, usable rooms, or excavates a new basement under a house. Converting an existing cellar is far simpler and cheaper than digging a new one, and often does not need planning permission.
- Waterproofing design and installation
- Ventilation, heating and electrics
- Finished floors, walls and ceilings
What is the guide price for a basement conversion in Lancashire?
What basement and cellar conversions typically cost. These are guide ranges; the written quote for your house replaces them.
| Basement and cellar conversions | Guide price incl. VAT |
|---|---|
| Existing cellar conversion | £1,900 to £3,000 per m² |
| New basement excavation | £4,200 to £6,600 per m² |
Do you need permission for a basement conversion 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.
Converting an existing cellar with no external changes usually does not need planning permission in England.
What should Lancashire homeowners check first?
- Groundwater levels drive the waterproofing design and cost.
- Headroom of about 2.1 m or more is needed, which may mean lowering the floor.
What happens after I enquire?
- 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.
What people ask before starting
How much does a basement conversion cost?
Converting an existing cellar costs about £1,900 to £3,000 per square metre including VAT. A new excavated basement is around £4,200 to £6,600 per square metre.
How do you keep a basement dry?
With a designed waterproofing system, usually a cavity drain membrane draining to a pump, sometimes combined with tanking.
Do you work in Lancashire?
Yes. Lancashire is within our coverage for basement and cellar conversions, along with nearby Preston and Burnley.
Other towns nearby
- Basement and cellar conversions in Preston
- Basement and cellar conversions in Burnley
- Basement and cellar conversions in Blackburn
- Basement and cellar conversions in Blackpool
- Basement and cellar conversions in Morecambe
- Basement and cellar conversions in Lancaster
- Basement and cellar conversions in Lytham St Annes
- Basement and cellar conversions in Skelmersdale
- Basement and cellar conversions in Leyland
- Basement and cellar conversions in Accrington
- Basement and cellar conversions in Chorley
- Basement and cellar conversions in Darwen
- Basement and cellar conversions in Thornton-Cleveleys
- Basement and cellar conversions in Nelson
- Basement and cellar conversions in Fleetwood
- Basement and cellar conversions in Ormskirk
- Basement and cellar conversions in Rawtenstall
Learn more about basement and cellar conversions, or see every project we cover in Lancashire.