Loft conversions, house extensions, renovations, basements and new builds across London and Hertfordshire.
Services
Loft conversions, house extensions, renovations, basements and new builds across London and Hertfordshire.
Services
Loft conversions, house extensions, renovations, basements and new builds across London and Hertfordshire.
Services
Loft conversions, house extensions, renovations, basements and new builds across London and Hertfordshire.
Services
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A hip-to-gable loft on a 1930s semi in Hendon: a new bedroom with en-suite, permitted development, six weeks on site.
Project facts
- House1930s semi-detached
- Added+400 sq ft
- On site6 weeks
- Completed2021
- PlanningPermitted development
- Contract value£68,000 – £78,000 inc. VAT
Built under permitted development. No planning application was needed: the design was kept inside the permitted development limits. How permitted development loft and extension projects work
Project type: Hip-to-gable loft · Area: Hendon NW4
What we did
- Hip-to-gable loft conversion with rear dormer
- Bedroom with en-suite
- Permitted development
Specification
Victoria Plumb · Fire Doors · New Electrical Systems
Design and build inclusive: architecture, structural engineering, planning, party wall, construction, project management and LABC sign-off under one contract.
Anderson's note
A 1930s Hendon semi is the classic hip-to-gable: the gable wall gives you the headroom and the dormer gives you the floor area. Six weeks, no planning application.
Anderson, founder — LCCL Construction, Finchley N3
The client's view
“Has done excellent job including architect design, planning and construction of our loft conversion highly recommended”
Verified client · Reviews.io
As LABC Building Excellence Award Winners 2024 for Best Residential Extension in London, and 2026 London Regional Winners for Best Conversion or Alteration, every project runs under one contract with a 12-month workmanship guarantee and a 10-year LABC structural warranty.
One team, one contract, one point of contact — from first sketch to handover.

“I highly recommend LCCL Construction. They completed our loft conversion to a very high standard, and the quality of workmanship throughout was excellent. The team was professional, reliable, and completed everything within a very reasonable timeframe.…”
Alina A · Google Reviews
“I couldn't be happier with my loft conversion and extension done by LCCL Building Construction. Real craftsmanship, professional management of the entire build from start to finish, seamless integration of new space within the existing one. The work was…”
Plamen Petrov · Trustpilot
“LCCL Construction has beautifully transformed our house with a loft conversion, house extension and renovation including design and build, we are amazed with high quality of the build, professionalism and dedication to successfully complete our highly…”
Leonard Shehu · Google Reviews








