Covering Devon
Our coverage across Devon includes Plymouth, Exeter, Paignton and Torquay.
Homes in the South West
Homes in the South West range from coastal and rural properties in stone and slate to city terraces and modern estates, so extensions are designed to match the local materials.
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.
- Structural design and party wall process
- Staircase, insulation and fit-out
- En-suite, electrics and fire safety
How much should I budget for a mansard loft conversion?
Guide prices for mansard loft conversions, including VAT where it applies. Your fixed price is confirmed in writing after the survey.
| 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 Devon?
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.
What can change the price or programme?
- Council design guides often require natural slate and lead.
- Scaffolding and a temporary roof are usually needed.
What are the steps?
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
- Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
- We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.
Mansard loft conversions: common questions
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 Devon?
Yes. Devon is within our coverage for mansard loft conversions, along with nearby Plymouth and Exeter.
Mansard loft conversions near Devon
- Mansard loft conversions in Plymouth
- Mansard loft conversions in Exeter
- Mansard loft conversions in Paignton
- Mansard loft conversions in Torquay
- Mansard loft conversions in Newton Abbot
- Mansard loft conversions in Exmouth
- Mansard loft conversions in Barnstaple
- Mansard loft conversions in Bideford
- Mansard loft conversions in Tiverton
Learn more about mansard loft conversions, or see every project we cover in Devon.