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LABC Building Excellence Awards 2026 — London Regional Winner, Best Conversion or Alteration to an Existing Home
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£250k – £300k
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, structural guarantee to building-control sign-off and a 10-year LABC Warranty available.
One team, one contract, one point of contact — from first sketch to handover.
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“Extension built by LCCL Construction. We have just recently completed our ground floor house extension on our semi-detached home in Finchley. The services we used were for the design and build of the extension which is three meters and the full breadth of…”
EVA HALL · Trustpilot
“We are very happy with the services from Lccl, Alex has done a great job on design and construction. We have used Lccl in the past for our rear house extension and have come back to instruct Lccl for our loft conversion too to our house in North London. As…”
Mia M · Google Reviews
“Everyone at LCCL Construction was skilled, trustworthy and worked to the highest standard. I am delighted with our loft conversion, it is exactly what we wanted and I highly recommend the company - they have transformed the quality of my home. Overall it…”
KashImaging · Google Reviews