Covering Bonnyrigg
We work in Bonnyrigg (EH19) and the places around it, including Dalkeith, Musselburgh and Haddington.
Homes in the Lothians
Housing in Scotland includes tenements in the cities, sandstone villas, inter-war and post-war semis and a large number of bungalows, which often suit dormer and upward extensions.
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.
- Building warrant application and completion certificate
- Slate cladding and lead-clad dormers
- En-suite, electrics and fire safety
How much does a mansard loft conversion cost in Bonnyrigg?
What mansard loft conversions typically cost. These are guide ranges; the written quote for your house replaces them.
| Mansard loft conversions | Guide price incl. VAT |
|---|---|
| Rear mansard | £65,000 to £85,000 |
| Front and rear (double) mansard | £80,000 to £110,000 |
Do you need permission for a mansard loft conversion in Bonnyrigg?
In Scotland the key step is the building warrant, which must be granted before work begins. Planning permission is decided separately by the council, and work on shared walls is handled under your title deeds rather than a party wall act.
This needs planning permission and a building warrant from your council in Scotland before work starts.
What can affect a mansard loft conversion?
- Council design guides often require natural slate and lead.
- Scaffolding and a temporary roof are usually needed.
From first call to completion
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
- Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
- 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 mansard loft conversion in Bonnyrigg
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.
Do you work in Bonnyrigg?
Yes. Bonnyrigg is within our coverage for mansard loft conversions, along with nearby Dalkeith and Musselburgh.
Other towns nearby
- Mansard loft conversions in Dalkeith
- Mansard loft conversions in Musselburgh
- Mansard loft conversions in Haddington
- Mansard loft conversions in Peebles
Learn more about mansard loft conversions, or see every project we cover in Bonnyrigg.

