Garden annexes · Great Sankey

Garden annexes in Great Sankey

Planning garden annexes in Great Sankey? We design and build them for houses across Cheshire, and we fix the price for the agreed specification in writing before any building work starts.

Covering Great Sankey

Our coverage around Great Sankey (WA5) also includes Warrington, Newton-le-Willows and Widnes.

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 garden annexe in Great Sankey?

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.

  • Foundations and drainage connections
  • Brick, block or timber-frame structure
  • Accessible design options for older relatives

What will a garden annexe cost?

What garden annexes typically cost. These are guide ranges; the written quote for your house replaces them.

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

Do you need permission for a garden annexe in Great Sankey?

In England we deal with the council’s planning team for permission or a lawful development certificate, with building control (the council or a registered building control approver) for inspections, and with neighbours under the Party Wall etc. Act 1996 where it 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 should I think about before starting?

  • 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. Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
  4. Construction and completion. One site lead co-ordinates every trade through to the building control certificate.

Garden annexes: common questions

How much does a garden annexe cost?

Around £2,400 to £3,900 per square metre including VAT, depending on finish and services.

How long does an annexe take to build?

About 14 to 24 weeks on site after approvals.

Do you work in Great Sankey?

Yes. Great Sankey is within our coverage for garden annexes, along with nearby Warrington and Newton-le-Willows.

Garden annexes near Great Sankey

Learn more about garden annexes, or see every project we cover in Great Sankey.

Planning an extension, loft or new home?

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

CallGet a quote