Garden annexes · Bartley Green

Garden annexes in Bartley Green

Our garden annexes service covers Bartley Green and the rest of the West Midlands. You get a fixed price in writing for the agreed specification, and one person co-ordinating the trades.

Covering Bartley Green

Our coverage around Bartley Green (B32, B62) also includes Halesowen (2 miles to the north-west) and Smethwick.

Homes in the West Midlands

The West Midlands has a large stock of 1930s semis and Victorian terraces in red brick, so matching brick and roof tiles is often the key to an extension that looks original.

What goes into 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 does a garden annexe cost in Bartley Green?

Use these ranges to budget for garden annexes; the survey turns them into a fixed price for the agreed specification.

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

What approvals does a garden annexe need in England?

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 affect a garden annexe?

  • 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.

From first call to completion

  1. Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
  2. We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
  3. Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
  4. We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.

Garden annexes: common questions

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.

Can I rent the annexe out?

Usually not without a separate planning permission, because councils normally require it to stay part of the main house.

Do you work in Bartley Green?

Yes. Bartley Green is within our coverage for garden annexes, along with nearby Halesowen and Smethwick.

Garden annexes in nearby towns

Learn more about garden annexes, or see every project we cover in Bartley Green.

Planning an extension, loft or new home?

Get a guide price in two minutes, then book a free site visit.

CallGet a quote