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.
A family semi in East Barnet renovated top to bottom: a full-width rear extension for an open-plan…
Rear extension + Hip-to-gable loft · +1,000 sq ft · completed 2023 · 30 weeks on site
A top-floor flat turned into a penthouse duplex: the kitchen and living space moved up into the new loft,…
Loft conversion + Renovation · +800 sq ft · completed 2025 · 18 weeks on site
A detached house in Hadley Wood with good bones but a layout that no longer suited a growing family. The…
New build · 3,033 sq ft · completed 2026 · 60 weeks on site
A 3 × 10 m single-storey rear extension on a modern semi in Millbrook Park: a large kitchen and dining…
Kitchen extension · +500 sq ft (3 × 10 m) · completed 2023 · 10 weeks on site
A rear extension and ground-floor renovation on a 1930s semi in a Finchley conservation area: an open-plan…
Rear extension + Kitchen extension · +378 sq ft · completed 2022 · 9 weeks on site
A rear extension to a Victorian terrace in Putney: an open-plan kitchen-diner with skylights and bifold…
Rear extension · +400 sq ft · completed 2020 · 14 weeks on site
A rear extension to an Edwardian terrace in Highbury: a new kitchen and dining space with underfloor…
Rear extension · +500 sq ft · completed 2021 · 13 weeks on site
A side return extension to a Victorian terrace in Queen's Park: the narrow side passage brought inside to…
Side return extension · +400 sq ft · completed 2022 · 16 weeks on site
A 3-bed Victorian terrace in East Finchley refurbished throughout with a new 5 m side return extension:…
Side return extension + Renovation · +500 sq ft (5 m side return) · completed 2024 · 18 weeks on site
A wraparound extension and full interior renovation of a terrace in Chelsea SW10: open-plan kitchen-diner…
Wraparound extension + Renovation · +350 sq ft · completed 2025 · 14 weeks on site
A wraparound extension and loft conversion on a 1930s semi in Hendon: a new open-plan kitchen, a laundry…
Wraparound extension + Loft conversion · +800 sq ft · completed 2021 · 20 weeks on site
A two-storey extension to a 1912 house in Welwyn Garden City: kitchen and study below, master bedroom with…
Double-storey extension · +1,500 sq ft · completed 2020 · 18 weeks on site
A two-storey extension on a 1930s semi in Crouch End: open-plan kitchen below, a new bathroom and study…
Double-storey extension · +1,000 sq ft · completed 2023 · 22 weeks on site
A rear dormer loft conversion on a 1914 terrace in Putney: a new bedroom with en-suite and a Juliet…
Dormer loft · +322 sq ft · completed 2024 · 6 weeks on site
An L-shaped dormer loft on an Edwardian terrace in Wood Green: a bedroom with en-suite plus a study over…
L-shaped loft · +459 sq ft · completed 2022 · 8 weeks on site
A hip-to-gable loft conversion on a 1950s semi in Borehamwood: a new bedroom with en-suite, permitted…
Hip-to-gable loft · +400 sq ft · completed 2021 · 6 weeks on site
A hip-to-gable loft on a 1930s semi in Hendon: a new bedroom with en-suite, permitted development, six…
Hip-to-gable loft · +400 sq ft · completed 2021 · 6 weeks on site
A mansard roof extension and reconfiguration of a Georgian terrace in Marylebone: open-plan kitchen, two…
Mansard loft + Renovation · +2,000 sq ft · completed 2018 · 35 weeks on site
A rooflight loft conversion on a Victorian house in Hampstead: one new room within the existing roof, four…
Velux loft · +250 sq ft · completed 2025 · 4 weeks on site
A full renovation of a 2,500 sq ft period apartment off Great Portland Street: new kitchen, bedrooms and…
Renovation · 2,500 sq ft renovated · completed 2025 · 18 weeks on site
A full renovation of a 2,000 sq ft period apartment on Princess Road, Primrose Hill: new kitchen, bedrooms…
Renovation · 2,000 sq ft renovated · completed 2025 · 16 weeks on site
A new basement dug beneath a Victorian terrace in St John's Wood: three new bedrooms with en-suite, a…
Basement + Renovation · +3,500 sq ft · completed 2023 · 40 weeks on site
A whole-house transformation of a Victorian terrace on Chipstead Street, Fulham: the existing cellar…
Basement + Loft conversion · +3,000 sq ft · completed 2024 · 65 weeks on site
A kitchen extension to a Victorian terrace on Victoria Road, Maida Vale: a new open-plan kitchen, dining…
Kitchen extension · +1,000 sq ft · completed 2025 · 17 weeks on site
“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.”
Mia M · Google Reviews
“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
“LCCL Construction was the right company to help with my loft conversion. I heard of other people's challenging experiences with building works so I was very careful which company I chose. LCCL Constructions was professional, trustworthy and worked to the…”
KashImaging · Trustpilot
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