Dormer loft conversions · Haywards Heath

Dormer loft conversions in Haywards Heath

Dormer loft conversions for homes in Haywards Heath and the surrounding parts of West Sussex, designed around your house and built by our teams under a single written contract.

Covering Haywards Heath

Our coverage around Haywards Heath (RH16) also includes Burgess Hill (3 miles to the south-west) and Crawley.

Homes in the South East

Housing across the South East mixes inter-war semis, post-war estates and older cottages in villages and market towns, so rear and side extensions, hip-to-gable lofts and garage conversions all come up regularly.

What does a dormer loft conversion involve?

A dormer loft conversion builds a box-shaped extension out from the rear slope of the roof, creating vertical walls and full head height across most of the new floor. It is the most popular type of loft conversion because it gives the most usable space for the cost.

  • Lawful development certificate or planning drawings
  • Dormer frame, roof covering and cladding
  • En-suite, electrics and fire-protected escape route

What is the guide price for a dormer loft conversion in Haywards Heath?

Use these ranges to budget for dormer loft conversions; the survey turns them into a fixed price for the agreed specification.

Dormer loft conversionsGuide price incl. VAT
Rear dormer, bedroom only£50,000 to £65,000
Full-width dormer with en-suite£60,000 to £80,000
L-shaped dormer (over rear outrigger)£65,000 to £90,000

Planning and building rules in Haywards Heath

English projects need planning clearance from the local council, building regulations sign-off from building control, and party wall notices where the work is on or near a shared boundary. We prepare and manage all three.

In England many loft conversions are permitted development: the extra roof volume must stay within 40 m³ on a terraced house or 50 m³ on a semi or detached house, nothing can sit higher than the existing ridge, no dormer can face a road on the main elevation, and side windows must be obscure-glazed and non-opening below 1.7 m. Houses in conservation areas, National Parks and National Landscapes cannot use these roof-extension rights, so dormers there need planning permission (a rooflight-only conversion can still be permitted development), and flats always need permission.

What can change the price or programme?

  • Dormers on the front of the house facing a road are not permitted development in England.
  • Dormer cheeks close to a shared wall can trigger the Party Wall Act.

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. Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
  4. Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

Questions about a dormer loft conversion in Haywards Heath

Is a dormer permitted development?

Rear dormers in England often are, within the 40 m³ (terrace) or 50 m³ (semi or detached) volume allowance. Front dormers facing a road are not.

Can a dormer include a bathroom?

Yes. The full head height in a dormer makes it the best place for a shower room or en-suite.

Do you work in Haywards Heath?

Yes. Haywards Heath is within our coverage for dormer loft conversions, along with nearby Burgess Hill and Crawley.

Other towns nearby

Learn more about dormer loft conversions, or see every project we cover in Haywards Heath.

Planning an extension, loft or new home?

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

CallGet a quote