About us, about Lccl Construction, about loft conversions company London and Hertfordshire, about Lccl Construction   

“Over 14 years of delivering quality loft conversions and house extensions” 

About us:

About Lccl Construction. What does Lccl Construction stand for? This is an abbreviation of our original name Loft Conversion Company London. Lccl Construction delivers cost effective, affordable in house solutions for loft conversions, house extensions and architectural design services.


We are a loft conversion company delivering design and build of loft conversions and home extensions across London and Hertfordshire. We are located 3rd Floor, Hathaway House, Popes Dr, Finchley, London N3 1QF.


Our registered name is "Loft Conversion Company London Limited" Trading as "Lccl Construction" Registration Number: 11713461

Lccl construction companies house name: Loft Conversion Company London Limited


We are specialists in loft conversions and house extensions design and build company. We have been delivering quality loft conversions, house extensions and architectural design services for over 15 years in London and Hertfordshire, United Kingdom. Loft conversions, house extensions and architectural designs for residential customers located in London and Hertfordshire have a look at our projects for more details on portfolio click here >

About our Lccl construction brand:

"Lccl construction" is a brand name of "Loft Conversion Company London Limited

About our quality and end product:

We have built a solid reputation by delivering a quality end product, safely, on time and within budget.  We have formed excellent working relationships that keep our customers coming back to us and recommending us to their friends and family..
About our services:

about us and our loft conversion services >

about us and our house extension services >

about us and our architectural design services >

​about us and our loft conversion locations >

about us and our house extension locations >

about us and our types of lofts >

about us and our projects portfolio >

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FAQs >

About us and our values

We believe that our customers should receive the best customer services in London, this is our aim. We deliver an honest, upfront approach to pricing all of our jobs so that you know realistically what the job will cost in advance. The quality of our workmanship is checked frequently and thoroughly by our project managers so that we always meet our own high standards and deliver excellent cost effective and efficient end results. 

About our pride:

We take pride in our work, that's why we put our name on it! All our sites  are branded with company banners because we are proud of every job we do. Since the company was founded we have always understood that being trusted by a client with their home is a huge deal, this is something we take very seriously and never forget. From our very first job to our most recently completed project we continue to learn lessons and make improvements to the way in which we operate. We believe that continuous improvement drives the very highest of standards. We do this in order to keep our offer efficient, competitve and true to our core customer service aims and values.. ​

About us and about Employment at Lccl

We want to be the best and we want to employ the best. We have very strict recruitment policies in place and each and every Lccl employee will have to meet our stringent recruitment criteria for their particular job role. We measure our employees against our robust result based competencies and review their performance regularly. We will not employ anybody who does not meet our high criteria in terms of qualifications, attitude, experience, customer service skills and appearance. ​If you are high self motivated, passionate about delivering great results and have a keen eye for detail and an ambition to progress your career then get in touch.

About us and about Lccl Future?

All of our people have a goal and that is to be the Leading in the Industry Nationally and for us to increase the market share. We want to change the way building companies are seen altering clients opinions one successfully completed beautiful home transformation at a time.

More about us Lccl Construction:

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What are the stages in architecture, examples of the drawings, about the type of loft conversions and house extension.

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Loft Conversions

What are the different types of loft conversions, costs associated and return on investment, locations we operate in. 

Get Inspired

Have you seen our portfolio? we would pretty much have any type of project you could wish for, get inspired follow the link.

House Extensions

Types of house extension, what do they cost, where we build house extensions, value of house extensions.

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Finchley, London Office Location:

3rd Floor, Hathway House, Popes Dr, Finchley, London N3 1QF



020 8037 7332

Office Hours:

Monday to Saturday 8AM - 6PM

Sunday - Closed

Registered company England:

Loft Conversion Company London Limited. Trading as "Lccl Construction" Registration: 11713461

Accreditation, partnerships and planning:

Planning Portal
Lodon and Hertforshire Construction Awards

Lccl Construction. Specialist loft conversion company, house extension builders, architectural design and planning. Design and build construction company from start to finish including architecture, planning, building control, party walls, structural calculations, project management, construction and finishing.

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