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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LABC Building Excellence Awards 2026 — London Regional Winner, Best Conversion or Alteration to an Existing Home — View the certificate · LABC winners list
A top-floor flat turned into a penthouse duplex: the kitchen and living space moved up into the new loft, two new bathrooms, an extra bedroom and a terrace with views across to the Shard, the London Eye and Parliament.
Project facts
- HouseTop-floor flat, Victorian conversion
- Added+800 sq ft
- On site18 weeks
- Completed2025
- PlanningHouseholder planning
- Contract value£250,000 – £300,000 inc. VAT
Project type: Loft conversion · Renovation · Alteration · Area: Hampstead NW6
What we did
- Kitchen and living space moved up into the new loft
- Two new bathrooms
- Extra bedroom
- Penthouse duplex with views to the Shard, London Eye and Parliament
Specification
Lusso Stone bathrooms · Buster + Punch · Engineered wood flooring · Slimline sliding windows · Roof terrace
Design and build inclusive: architecture, structural engineering, planning, party wall, construction, project management and LABC sign-off under one contract.
Anderson's note
Moving the kitchen and living space up into the loft, rather than adding bedrooms, is what won this its award — the new floor gets the light and the view, and the old living floor becomes the bedrooms. Slimline sliding windows onto the terrace were the one detail we would not compromise on.
Anderson, founder — LCCL Construction, Finchley N3
The client's view
“Alex is super professional and on the ball at all times. He always thinks ahead and won't let you down. All his teams, from bricklayers, carpentry to electrics, roofing, tiling, painting, flooring and plumbing are excellent and hard working. They are conscientious and want the job to be well done. We are very happy with our loft extension which includes a brand new kitchen. LCCL showed great attention to detail.”
Verified client · Trustpilot
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.
“The Lccl construction team built my extension with a quick and clean service, they worked non stop through the winter weather.. I would highly recommend this company!”
Chris Dunn · Google Reviews
“Rear house extension 6x3m and dormer loft conversion completed with LCCL Construction, finished the whole project in 14 weeks very happy with the outcome, highly skilled and experienced design and build company a perfect match for our house. Would highly…”
Fran S · Reviews.io
“Total refurbishment and side return extension in East Finchley. LCCL totally refurbished our 3-bed Victorian terraced house in East Finchley and built a new 5m side return extension. This means rewiring, re-plumbing, drainage, sewer, and waste. Building a…”
A Davidsson · Google Reviews