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
Call 020 8037 7332 or get an instant estimate online.

An L-shaped dormer loft on an Edwardian terrace in Wood Green: a bedroom with en-suite plus a study over the outrigger, under permitted development.
Project facts
- HouseEdwardian terrace
- Added+459 sq ft
- On site8 weeks
- Completed2022
- PlanningPermitted development
- Contract value£75,000 – £90,000 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: L-shaped loft · Area: Wood Green N22
What we did
- L-shaped dormer loft conversion
- Bedroom with en-suite
- Study over the outrigger
- Permitted development
Specification
Lusso stone · LPD Doors · Wood Floors
Design and build inclusive: architecture, structural engineering, planning, party wall, construction, project management and LABC sign-off under one contract.
Anderson's note
The L-shape is the best value loft on a terrace with an outrigger — the second dormer over the back addition adds a whole room for a fraction of the cost of the first.
Anderson, founder — LCCL Construction, Finchley N3
The client's view
“Completed design and build of our loft conversion to a high standard and we are very happy. Professional, trustworthy loft conversion company.”
Verified client · FreeIndex
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.

“We did a 3x10m single storey rear extension with LCCL recently. It was scheduled to take 12 weeks to complete but with Alex's experience and agile project management, we are ahead of schedule (finished in 10). Alex, and LCCL,is extremely knowledgeable and…”
Galichet Christophe · Google Reviews
“Hired LCCL Construction to design and build us a rear house extension. Found them easy to work with and are pleased with the results. They have been recommended to us for the whole build including designs and construction. The rear extension feels amazing,…”
James Grimsdale · Google Reviews
“I highly recommend LCCL Construction. From the start of discussing ideas and planning I can tell you they were very professional and efficient. I had my kitchen and loft done a year ago now and am absolutely thrilled! Exactly what I wanted!”
Nadya Christou · Google Reviews






