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LCCL Construction – design and build company, London N3
020 8037 7332Book a callInstant estimate

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.

Reviews · Google, Trustpilot, Houzz, Yell, Reviews.io

LCCL Construction reviews: what clients say

LCCL Construction is rated 4.7 out of 5 across more than 200 verified reviews on Google, Trustpilot, Houzz, Yell and Reviews.io — 4.9/5 from 67 reviews on Houzz and 5.0 from 83 on Yell. Every quote on this page is taken word for word from those platforms, with the reviewer's name and where it was posted, so you can check each one.

A free 30-minute phone call with our team, no obligation.

Completed LCCL Construction extension in London

Overall

4.7/5 · 200+ reviews

Houzz

4.9/5 · 67 reviews

Yell

5.0/5 · 83 reviews

Awards

LABC 2024 & 2026

Verified

How we handle reviews

Every review quoted here is published on an independent platform under the reviewer's own account. We do not write, edit or filter them, and we link to each platform below so you can read the rest — including the critical ones.

"Super professional and on the ball at all times. All his teams are excellent and hard working. They are conscientious and want the job to be well done." — Ludovic, Reviews.io

If you have worked with us, a review on any of these platforms helps the next family choose with confidence — thank you.

Open-plan kitchen extension by LCCL Construction, London

2004

Founded in Finchley, North London — 20+ years of design and build

2

LABC Building Excellence Awards — 2024 (Best Residential Extension, London) and 2026 (Best Conversion or Alteration, London regional)

4.7/5

200+ verified reviews across Google, Trustpilot, Houzz, Yell and Reviews.io

7 yrs

Best of Houzz Service 2020–2024 and 2026 — six awards

Where to read them

Our profiles on each platform

Trustpilot

Verified reviews of LCCL Construction on Trustpilot, including the KashImaging review quoted on this page. LCCL on Trustpilot →

Houzz

4.9/5 from 67 reviews, Best of Houzz Service 2020–2024 and 2026, and photos of our projects. LCCL on Houzz →

Yell

5.0 from 83 reviews on Yell. LCCL on Yell →

Reviews.io

Independent reviews collected through Reviews.io, including Ludovic's review quoted above. LCCL on Reviews.io →

The team

The people who design and build your project

Aleksandar Madari (Anderson), founder of LCCL Construction, Finchley N3

Aleksandar Madari (Anderson)

FOUNDER · ARCHITECTURE & PROJECT MANAGEMENT · 20+ YEARS

Aleksandar Madari — Anderson to everyone he works with — founded LCCL Construction in 2004 and brings over 20 years of hands-on experience in architecture, construction and project management.

He oversees every project from initial design through to completion. His background spans architectural design, planning applications, structural engineering and on-site construction management, with particular expertise in loft conversions, house extensions and new builds across London and Hertfordshire.

Amelia Taylor, architecture and project management, LCCL Construction

Amelia Taylor

ARCHITECTURE & PROJECT MANAGEMENT · 16 YEARS

Amelia Taylor has over 16 years of experience in architecture, project management and construction.

She manages the design and delivery of projects from initial consultation through to handover, coordinating with architects, engineers and construction teams throughout. Amelia specialises in residential projects including loft conversions, house extensions, renovations and new builds, with a strong track record of delivering work on time and to a high standard.

Sarah, architect (ARB, RIBA), LCCL Construction

Sarah

ARCHITECT · ARB · RIBA

Sarah handles architectural design, concept development, planning permission applications and building regulation submissions.

Her detailed knowledge of local authority planning guidelines across London and Hertfordshire enables her to achieve a high rate of planning approvals. Sarah produces technical drawings for loft conversions, house extensions, new builds, basements, renovations and outbuildings.

Steven, architecture and survey (MCIOB, FPWS), LCCL Construction

Steven

ARCHITECTURE & SURVEY · MCIOB · FPWS

Steven handles architectural design, concept design, planning applications, building regulations approvals and technical drawings.

He works across loft conversions, house extensions, new builds, basements, renovations and outbuildings. Steven is a member of the CIOB and the Faculty of Party Wall Surveyors (FPWS), and his knowledge of London and Hertfordshire councils helps us achieve a high rate of planning approvals.

The projects behind the reviews

Two award-winning homes, start to finish

Bohun Grove EN4 rear extension and hip-to-gable loft by LCCL Construction, LABC award 2024

Hip-to-gable loft, full-width rear extension, two new bathrooms, whole-house renovation, landscaping and a regulated outbuilding. LABC Building Excellence Award 2024 — Best Residential Extension in London. Read the case study →

Weech Road NW6 penthouse duplex loft conversion by LCCL Construction, LABC award 2026

Top-floor flat converted into a penthouse duplex: kitchen and living space moved into the new loft, two bathrooms, an extra bedroom. LABC Building Excellence Award 2026 — London Regional Winner, Best Conversion or Alteration to an Existing Home. Read the case study →

What clients say

Verified reviews — word for word

★★★★★

“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 kept on schedule and finished on time upon agreed budget. Highly recommended!”

Plamen Petrov

5/5 · Trustpilot · May 2026 · Verified

★★★★★

“I highly recommend LCCL Construction. They completed our loft conversion to a very high standard, and the quality of their work throughout was excellent. The team was professional, reliable, and completed everything within a very reasonable timeframe. They were also fairly priced, which made the whole experience even better. We're really pleased with the final result and would definitely use them again.”

Alina A

5/5 · Trustpilot · May 2026 · Verified

★★★★★

“Great Work”

Mr Kurt

5/5 · Google Reviews · March 2026 · Verified

★★★★★

“Provides a professional service.”

Steven Gray

5/5 · Google Reviews · March 2026 · Verified

★★★★★

“I had a great experience with LCCL Construction Company. The team was professional, reliable, and delivered high-quality work from start to finish. Communication was clear throughout the project, and they made sure everything was completed on time and to a very high standard. Their attention to detail and commitment to customer satisfaction really stood out. I would definitely recommend LCCL Construction to anyone looking for a trustworthy and skilled construction company”

Jan Wolf

5/5 · Google Reviews · March 2026 · Verified

★★★★★

“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

5/5 · Google Reviews · March 2026 · Verified

★★★★★

“Very happy with the work carried out. The team was professional, reliable, and worked to a high standard from start to finish. Everything was completed properly, on time, and with great attention to detail. Really pleased with the final result and would definitely recommend them to anyone looking for a good construction company.”

Serediuc Alexandru

5/5 · Google Reviews · March 2026 · Verified

★★★★★

“We have had the pleasure of working with LCCL Construction for over a year now, very professional company to deal with, good communication, all there jobs run smooth and all the staff are friendly and polite. I would not hesitate in recommending LCCL to any one looking to have any building works done.”

Shane

5/5 · Google Reviews · February 2025 · Verified

★★★★★

“Our project was design and build of a 2 storey side and rear extension and a mansard loft conversion. We liked the approach of having everything designed and built by one company as it was easier for us to manage around our everyday lives. The design was quickly and efficiently and planning permission obtained. We were guided very well through all of the build stages and communication was excellent. Everything from the early construction stages to designing and fitting the kitchen and bathrooms. In terms of the finishing standards they were very high, every detail has been beautifully finished flooring, lighting, underfloor heating, panelling everything looks stunning.”

customer

5/5 · Trustpilot · February 2025 · Verified

★★★★★

“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 complex house development, all the teams was friendly and really helpful going an extra mile for us. I would highly recommend.”

Leonard Shehu

5/5 · Google Reviews · February 2025 · Verified

★★★★★

“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 all friendly yet professional. They are conscientious and want the job to be well done. Would really recommend this company that has a lot of experience working across London and with the different Councils, especially with garden and loft extensions. We are very happy with our loft extension which includes a brand new kitchen. LCCL showed great attention to detail. They did a fantastic job!”

Ludovic

5/5 · Trustpilot · February 2025 · Verified

★★★★★

“Extremely impressed with the work LCCL have done for us. Communication is key in this type of work and it continued the whole way through the project. The result being a very successful extension has been built and we are incredibly pleased how everything has turned out. LCCL are professional but friendly always making sure all the different trades were working towards the same goal. My standards are high and my standards were 100% met with LCCL. Very happy indeed and would definitely recommend.”

C.Smith

5/5 · Trustpilot · January 2025 · Verified

Read every review at source: Google · Trustpilot · Reviews.io · Houzz · Yell  ·  Worked with us? Leave a Google review

Questions about our reviews

How to read our reviews

  • Yes. Each one is published on an independent platform — Google, Trustpilot, Houzz, Yell or Reviews.io — under the reviewer's own account. We quote them word for word and name the platform so you can check.

  • Each platform counts only its own reviews: Houzz shows 4.9/5 from 67 reviews and Yell 5.0 from 83, while the figure across all platforms is 4.7/5 from more than 200. We quote all of them rather than the best one.

  • From Finchley N3 we cover North, North-West, Central, South-West and West London and Hertfordshire, and we also work across the rest of London, Buckinghamshire, Surrey, Kent and Essex.

  • Two steps. The instant estimator gives you a range for your postcode and project in thirty seconds. Then one measured survey gives you a detailed itemised estimate — design, planning, structure, construction and warranty priced line by line — with no obligation.

Aleksandar Madari (Anderson), founder of LCCL Construction

Start with a figure, then a conversation.

Get an instant estimate for your postcode, or book a free 30-minute call with our team. Call us on 020 8037 7332, Monday to Saturday 08:00–18:00.

One team, one contract, one point of contact — from first sketch to handover.

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