Covering Consett
Our coverage around Consett (DH8) also includes Stanley, Newburn and Chester-le-Street.
Homes in the North East
The North East has terraced housing including Tyneside flats, inter-war semis and post-war estates, so loft conversions, rear extensions and layout changes are popular ways to add space.
What is a mansard loft conversion?
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
- Slate cladding and lead-clad dormers
- En-suite, electrics and fire safety
How much does a mansard loft conversion cost in Consett?
Indicative costs for mansard loft conversions. London and the South East usually sit towards the top of each range.
| Mansard loft conversions | Guide price incl. VAT |
|---|---|
| Rear mansard | £65,000 to £85,000 |
| Front and rear (double) mansard | £80,000 to £110,000 |
Planning and building rules in Consett
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 should I think about before starting?
- A mansard nearly always involves party walls on both sides of a terrace.
- Council design guides often require natural slate and lead.
What happens after I enquire?
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
- Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
- Construction and completion. One site lead co-ordinates every trade through to the building control certificate.
Your questions answered
How much does a mansard loft conversion cost?
Typically £65,000 to £110,000 including VAT, depending on whether one or both roof slopes are rebuilt.
Does a mansard need planning permission?
Almost always, because it changes the roof profile.
Who deals with the council for a project in Consett?
We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.
Also covering
- Mansard loft conversions in Stanley
- Mansard loft conversions in Newburn
- Mansard loft conversions in Chester-le-Street
- Mansard loft conversions in Durham
Learn more about mansard loft conversions, or see every project we cover in Consett.

