Mansard loft conversions · Godalming

Mansard loft conversions in Godalming

Planning mansard loft conversions in Godalming? We design and build them for houses across Surrey, and we fix the price for the agreed specification in writing before any building work starts.

Covering Godalming

Our coverage around Godalming (GU7) also includes Guildford (4 miles to the north-east) and Aldershot.

Homes in the South East

Many South East homes are inter-war or post-war semis and detached houses with room for rear and side extensions, while historic town centres and villages bring conservation area and listed building controls.

What does a mansard loft conversion involve?

A mansard loft conversion replaces one or both slopes of a roof with a near-vertical wall, typically at 70 degrees, with small dormer windows set into it. It creates almost a full extra storey and is common on terraced houses in towns and cities, particularly in London.

  • Planning application to local design guidance
  • Slate cladding and lead-clad dormers
  • Staircase, insulation and fit-out

How much does a mansard loft conversion cost in Godalming?

Typical ranges for mansard loft conversions. Ground conditions, access and specification move the final figure, which we fix in writing before work starts.

Mansard loft conversionsGuide price incl. VAT
Rear mansard£65,000 to £85,000
Front and rear (double) mansard£80,000 to £110,000

How is a mansard loft conversion approved in Godalming?

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.

Mansard conversions change the shape of the roof significantly, so they usually need planning permission in England. Many councils publish guidance on mansard design.

What can change the price or programme?

  • The roof is open for longer than with a dormer, so weather protection matters.
  • Scaffolding and a temporary roof are usually needed.

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. Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
  4. We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.

What people ask before starting

Does a mansard need planning permission?

Almost always, because it changes the roof profile.

How long does a mansard take?

Around 10 to 14 weeks on site after planning approval.

Who deals with the council for a project in Godalming?

We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.

Mansard loft conversions in nearby towns

Learn more about mansard loft conversions, or see every project we cover in Godalming.

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