Garden annexes · Thornton-Cleveleys

Garden annexes in Thornton-Cleveleys

Planning garden annexes in Thornton-Cleveleys? We design and build them for houses across Lancashire, and we fix the price for the agreed specification in writing before any building work starts.

Covering Thornton-Cleveleys

We work in Thornton-Cleveleys (FY5, FY6) and the places around it, including Fleetwood, Blackpool and Lytham St Annes.

Homes in the North West

Across the North West, Victorian terraces, inter-war semis and modern estates all feature, and brick or stone matching is chosen to suit each street.

What do you get with a garden annexe?

A garden annexe is a separate single-storey building in the grounds of a house with its own bedroom, bathroom and kitchenette, used by family members as part of the main household. Unlike a garden office, an annexe that people sleep in normally needs planning permission and full building regulations approval.

  • Brick, block or timber-frame structure
  • Kitchenette and shower room
  • Accessible design options for older relatives

How much should I budget for a garden annexe?

Typical ranges for garden annexes. Ground conditions, access and specification move the final figure, which we fix in writing before work starts.

Garden annexesGuide 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 Thornton-Cleveleys

Projects in England go through two separate checks. Planning (or confirmation that the work is permitted development) comes from the district, borough or unitary council, and building regulations approval comes from the council’s building control team or a registered building control approver. Where work touches a shared wall or digs near a neighbour’s foundations, the Party Wall etc. Act 1996 applies.

A self-contained annexe used for sleeping and living normally needs planning permission in England. Permitted development for outbuildings does not cover living accommodation.

What can change the price or programme?

  • The annexe normally has to remain part of the main household, not let as a separate home.
  • Drainage may need a pump if the garden falls away from the sewer.

How does the project run?

  1. Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
  2. Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
  3. Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
  4. We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.

Your questions answered

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 make it wheelchair accessible?

Yes. Level access, wider doors and a level-access shower can be designed in from the start.

How do I get a price for garden annexes in Thornton-Cleveleys?

Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.

Garden annexes in nearby towns

Learn more about garden annexes, or see every project we cover in Thornton-Cleveleys.

Planning an extension, loft or new home?

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