Service · Loft Conversions
Hip-to-gable, dormer and mansard conversions. Standalone or part of a whole-house scheme.
Overview
Loft conversions are one of HXL's most-delivered scheme types. Hip-to-gable, dormer, mansard and L-shaped configurations across London and the Home Counties, delivered either as standalone projects or as part of a larger whole-house refurbishment under JCT Standard Building Contract. Structural engineering, Building Regulations, Party Wall awards and Part L compliance are coordinated in-house.
How we deliver
The loft conversions process.
01
Feasibility & cost plan
Site visit, scheme assessment, planning route, fixed cost plan returned within 2 weeks.
02
Drawings & consents
Architect drawings, Building Regs Full Plans, Party Wall service if required.
03
On site
Steel install, structural opening, weatherproof envelope, first and second fix, interior finish.
04
Sign-off
Building Control completion certificate, Party Wall acknowledgements, 12-month workmanship warranty.
Questions
What clients ask about loft conversions.
Standalone dormer or hip-to-gable from £90k. Mansard schemes in conservation areas from £140k. Structural and Part L compliance included. Whole-house refurbishments incorporating a loft sit £500k+.
Typical standalone dormer: 12 to 16 weeks. Mansard or complex structural: 16 to 22 weeks. Within a whole-house programme it is sequenced with the rest of the works.
Yes. Many loft conversions fall under permitted development, but conservation areas, Article 4 streets and mansards usually require a planning application. We handle both routes in-house.
Other services
The rest of HXL's capability.
Planning Coordination
Planning submissions, approvals and consents. Handled in-house alongside your architect.
Architect Partnership
Appointed as principal contractor for architect-led schemes. Drawings are the brief.
Structural & Engineering
Structural, MEP, acoustic and sustainability consultants. Procured and coordinated as part of one contract.
Enquire
Tell us the project in a paragraph. We reply within one working day.
HXL takes on a selective number of projects each year. A short note with the site, scope, appointed architect (if any) and likely timescale is all we need to open a conversation.
Private Residential
Homeowners with projects from £500k to £3m+, London and the Home Counties.
Residential Developments
Blocks of flats, multi-unit schemes, resale-ready delivery.
Heritage & Period
Listed buildings, conservation areas, period townhouses.