Garden annexes · Daventry

Garden annexes in Daventry

We take on garden annexes in Daventry as a complete project: survey, drawings, planning or permitted development checks, building control and the construction itself.

Covering Daventry

Alongside Daventry, we also cover Rugby, Towcester (11 miles to the south-east) and Northampton.

Homes in the East Midlands

The East Midlands combines red-brick terraces in the cities with a lot of post-war and modern estate housing, so rear extensions, garage conversions and loft conversions are all common.

What is a garden annexe?

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.

  • Brick, block or timber-frame structure
  • Heating, hot water and electrics
  • Accessible design options for older relatives

How much does a garden annexe cost in Daventry?

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 Daventry

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.

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.

What happens after I enquire?

  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 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 Daventry?

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

Garden annexes near Daventry

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

Planning an extension, loft or new home?

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