← Loft Conversions
Dormer Loft Conversions
A dormer extends straight out of the rear roof slope to add full standing height, floor area and big windows. The most popular and cost-effective loft conversion for terraced and semi-detached London homes.
From
£55,000
Programme
8–10 weeks
Planning
PD or full
Warranty
10 years
Why homeowners choose this
- Full standing head height across the new room
- Adds a double bedroom + en-suite in most homes
- Often falls under permitted development
- Typically 8–10 weeks on site

Planning, structural & build — handled.
Our in-house team manages design, planning, party wall agreements, structural calcs and Building Control sign-off. You get one team, one contract, one timeline.
Areas we cover
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Estimated investment
£94,000 – £113,000
Indicative range incl. VAT. Final quote provided after a free site visit.
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