Garden annexes · Derby

Garden annexes in Derby

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

Covering Derby

Alongside Derby, we also cover Belper (7 miles to the north), Ilkeston and Heanor.

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.

  • Design and planning application
  • Foundations and drainage connections
  • Kitchenette and shower room

How much does a garden annexe cost in Derby?

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

What approvals does a garden annexe need in England?

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?

  • A level threshold and wider doors make the annexe suitable for later life.
  • Council tax treatment depends on who lives there; check with your council.

From first call to completion

  1. Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
  2. Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
  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.

What people ask before starting

How much does a garden annexe cost?

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

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 Derby?

Yes. Derby is within our coverage for garden annexes, along with nearby Belper and Ilkeston.

Garden annexes in nearby towns

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

Planning an extension, loft or new home?

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

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