Mansard loft conversions in Edmonton

Covering Edmonton

Our coverage around Edmonton (N18) also includes Tottenham (2 miles to the south) and Enfield.

Homes in London

Terraced houses dominate many London neighbourhoods, so most projects involve shared walls, narrow access and a party wall process. Conservation areas are widespread, and some boroughs have their own mansard and basement guidance.

What goes into a mansard loft conversion?

Mansards are a bigger structural job than other conversions because the roof is largely rebuilt. They normally need planning permission, and many councils have design guides setting the angle, materials and window style. We prepare the design to those guides and build in slate, lead and timber or approved alternatives.

Structural design and party wall process
Slate cladding and lead-clad dormers
En-suite, electrics and fire safety

How much should I budget for a mansard loft conversion?

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

What approvals does a mansard loft conversion 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.

Mansard conversions change the shape of the roof significantly, so they usually need planning permission in England.

What can change the price or programme?

A mansard nearly always involves party walls on both sides of a terrace.
The roof is open for longer than with a dormer, so weather protection matters.

What happens after I enquire?

Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

Your questions answered

How long does a mansard take?

Around 10 to 14 weeks on site after planning approval.

Why choose a mansard over a dormer?

A mansard gives more usable space and often fits a street better where neighbours already have one.

How do I get a price for mansard loft conversions in Edmonton?

Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.

Mansard loft conversions near Edmonton

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