Bungalow and upward extensions · Leatherhead

Bungalow and upward extensions in Leatherhead

Homeowners in Leatherhead can get bungalow and upward extensions from one company: the design, the paperwork and the building work sit with us rather than with three separate firms.

Covering Leatherhead

Our coverage around Leatherhead (KT22) also includes Epsom, Ewell and Esher.

Homes in the South East

The South East has a lot of 1930s and post-war semi-detached housing, well suited to rear extensions and hip-to-gable loft conversions, alongside period properties in conservation areas that need a more careful design.

What do you get with an upward extension?

The first question is whether the existing walls and foundations can carry the extra load, so we start with a structural survey. Then we design either a full first floor or a raised roof with dormers, handle planning or prior approval, and build the new storey while protecting the floor below.

  • Structural survey of walls and foundations
  • Roof removal and temporary weather protection
  • New first-floor structure, walls and roof

How much does an upward extension cost in Leatherhead?

What bungalow and upward extensions typically cost. These are guide ranges; the written quote for your house replaces them.

Bungalow and upward extensionsGuide price incl. VAT
Chalet conversion with dormers (total)£45,000 to £85,000
New first floor, standard specification£2,200 to £2,800 per m²
New first floor, good specification£2,800 to £3,300 per m²
New first floor, high specification£3,300 to £3,800 per m²

How is an upward extension approved in Leatherhead?

Projects in England go through two separate checks. Planning (or confirmation that the work is permitted development) comes from the district, borough or unitary council, and building regulations approval comes from the council’s building control team or a registered building control approver. Where work touches a shared wall or digs near a neighbour’s foundations, the Party Wall etc. Act 1996 applies.

In England, Class AA permitted development allows an extra storey on many detached and semi-detached houses built between July 1948 and October 2018, subject to a prior approval application covering design, neighbours’ amenity and other matters. Houses in conservation areas and other protected land need full planning permission, as do most chalet conversions with front dormers.

What should Leatherhead homeowners check first?

  • Some bungalow foundations need strengthening before a storey can be added.
  • The staircase takes space from the ground floor plan.

How does the project run?

  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. 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. We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.

Questions about an upward extension in Leatherhead

Do we need to move out?

Often for part of the job, while the roof is off and the new floor is formed. We plan this with you.

How long does it take?

About 12 to 24 weeks on site.

Do you work in Leatherhead?

Yes. Leatherhead is within our coverage for bungalow and upward extensions, along with nearby Epsom and Ewell.

Also covering

Learn more about bungalow and upward extensions, or see every project we cover in Leatherhead.

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