Garden annexes · Hertford

Garden annexes in Hertford

From the first site visit to the final building control sign-off, we manage garden annexes in Hertford so you only have one company to deal with.

Covering Hertford

Hertford is about 11 miles east of St Albans. We also cover Hoddesdon (4 miles to the south-east), Welwyn Garden City and Hatfield.

Homes in the East of England

Housing in the East of England ranges from post-war estates and modern developments to timber-framed and period homes in historic towns, so permitted development checks and conservation controls both feature regularly.

What does a garden annexe involve?

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
  • Heating, hot water and electrics

How much should I budget for a garden annexe?

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 Hertford homeowners check first?

  • 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.

What are the steps?

  1. Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
  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. Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

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.

How do I get a price for garden annexes in Hertford?

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 Hertford

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

Planning an extension, loft or new home?

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

CallGet a quote