
LCCL CONSTRUCTION LONDON
Specialist Loft Conversions and House Extensions Design and Build Company


ABOUT US
We are a design and build company located in London, United Kingdom, dedicated to transforming your living spaces. Our range of services encompasses the design and construction of various types of properties, including houses, flats, and apartments. Whether you’re looking to enhance your’s interior or exterior, we have you covered. Our expertise includes creating stunning house extensions, converting lofts into functional spaces, and undertaking comprehensive renovations that involve all aspects of internal finishes, ensuring that every detail meets your vision and standards.
Transform your home into your dream space with Lccl Construction London! Our expert team specialises in loft conversions and house extensions in London and Hertfordshire. Let us bring your ideas to life with our award-winning services!
Covering London and Hertfordshire, United Kingdom and Surrounding Areas
Located in Finchley, N3 London
Our work
Loft conversion company, house extension builders, new builds, architecture services. Lccl Construction London is your premier architecture and construction service provider. Specializing in loft conversions and house extensions, we offer our award-winning services within an 85-mile radius from Finchley, London. Trust our experienced professionals to transform your home.

dormer loft conversions
hip to gable loft conversions
mansard loft conversions
L shaped loft conversions
velux loft conversion
optional LABC 10 year warranty
plumbing and electrical packages
design and build loft company london
new permitted development rules applied

rear house extension builders
kitchen extension builders
side return extension builders
wraparound and side return house extension
optional LABC 10 year warranty
plumbing and electrical packages
design and build company in London
New permitted development rules applied

design and build company in London, UK
design and build of loft conversions
design and build of house extensions
design and build new houses
optional LABC 10 year warranty
local authority building control partner
party wall and structural drawings and calculations

Architecture, Design and Planning
Measured building survey
Schematic drawings Consultation and Party Wall Agreements
Project Management
Structural Drawings and Calculations Planning and Building Control Application

Flat and Apartment Renovations
House Renovations
Design and Build
Plumbing and Electrical
Supply and Install Kitchens, Bathrooms, Flooring, Doors or Wardrobes
Total finishing options

new home build schemes
design and construction
architecture design and planning
LABC 10 year warranty
no deposit required
plumbing and electrical packages
New permitted development rules applied

We can serve party wall notices, serve full party wall awards, liaison with 3rd party surveyors. Our party wall agreement services are conducted by surveyor who is MCIOB and FPWS accredited.

The design would be detailed as per what type of timbers to use, thickness of the steels, type of concrete to be used, is a slab or block and beam floor, what type of steel connections to be used and more..

We do construction and project management as part of our design and build services, with our construction management services we build loft conversions, home extensions, renovations and new builds.

Find out more about our construction process and stages for your project, how do we go about running our construction project and what are the core elements associated in the construction process.

Lccl Construction unique construction process and design and build process for loft conversion and home extension
Find out more about Lccl Construction unique construction process or design and build process and what happens on the design or construction stage.
Step by step explanation of loft conversion, home extension and new build design and construction process.
We have included our original project images taken on our construction projects.

Lccl construction loft conversion company design and build in London and Hertfordshire, United Kingdom is a specialist loft conversion company, house extension builders, new house builder, architectural designers and planning company. With our end to end services we successfully start and finish every one of our projects. With our design and build construction company services we can complete all the stages of your build from consultation, architecture, survey to construction including plumbing and electrical installations under one roof. Our combined services includes planning, architectural design and construction.
By providing services from start to finish we will deal with architecture, planning applications, planning negotiations, building control drawings, building control application, party wall survey and agreements, structural and construction drawings, production of the construction schedule, interior design, construction phase, dealing with building control during construction, electrical and plumbing installations, completion of the construction, certificate and Local Authority Building Control sign off.
Loft Conversion Company London Limited trading as "Lccl Construction" Registration: 11713461
We cover all areas in London, Hertfordshire, United Kingdom. Our offices are located in 3rd Floor, Hathway House, Popes Drive, Finchley, London N3 1QF. The radius is 85 miles from our office location. Our phone number is: Phone 020 8037 7332
What is a design and build company?
The design and build concept means that multiple specialist skills and trades are combined into one, from start to finish we will deal with all the architecture, consultation, planning and thereafter the entirety of the construction, saving both time and capital.
We will help you plan, design and build your house extension or loft conversion every step of the way.
Find out more about successfully completed Lccl Construction design and build projects portfolio

Architectural design, survey and construction services under one umbrella
We are your one stop architectural design, survey, project management, construction services company. We take care of everything required for your loft conversion, home extension or renovation project. Meaning we will complete the design phase and construction phase for you, without the need to look anywhere else and you have only one point of contact for everything.
Design phase:
-
Building measured survey
-
Architecture services
-
Planning application
-
Building control application
-
Party wall agreements
-
Structural engineers calculations and design
-
Project management
-
Interiors
Construction Phase:
-
Construction of loft conversions and home extensions
-
Project management
-
Logistical supply and coordination
-
Quality control
-
Liaison with building control and inspection
-
Guarantee
Get to know what type of loft conversions and home extensions there are, understand the planning permissions impact of the context.
In short there are 10 stages of the design and build process. Starting with a contact, consultation, quote, full survey, planning permission drawings, building regulation drawings, structural calculation drawings, party wall agreements and construction.
Lccl Construction is one of the leading construction companies in North London,construction companies in London and construction companies in Hertfordshire, United Kingdom. We are a specialist loft conversion company, house extension builders, design and build company London. With our architecture services, design and build solutions we are able to deliver any type of loft conversion, house extension, both in the London and Hertfordshire areas.
Have a look at the design and build process stages in more detail lccl construction design and build process
Why choose Lccl construction for your loft conversion or house extension
At Lccl Construction we have carried out many design and build loft conversions and house extension projects in London, Hertfordshire, United Kingdom. We design and build London loft conversions turning them into beautiful spaces. Our aim is to make the process of house extensions or loft conversions as simple as possible, hassle free and stress free for a loft conversion in London and house extension in London.
Some of the customers that live in London and Hertfordshire are looking for extra space due to a growing family or the need for additional space for a home office or some like to invest in their property. Whatever the reason we design and build loft conversions in North London, London and Hertfordshire.


7 reasons to choose
LCCL Construction
1. Insured, Registered and Accredited Construction Company
3. Fully Detailed Quotes on Small, Mid & Large Projects
4. Efficient and Professional services
5. Located locally London, United Kingdom
6. Small Deposit
7. Optional LABC Warranty 10 - 12 years
London Number 1 Award Winning Residential House Extension Design and Build Company
Extremely professional and personable company - highly recommended
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.
Ludovic, 7 February
LCCL Construction was the right company…
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 highest standard.
KashImaging, 8 January
2ND PROJECT WITH LCCL
2ND project with LCCL construction wraparound house extension. Completed full design and build process to our home in Finchley north London. Previously they have design and build our loft conversion 4 years on and still it is in excellent condition. wraparound rear extension looks and feels amazing.
Anthony, 18 March
LCCL Did An Excellent Job
Contracted lccl construction to design and build hip to gable loft conversion, after much research I found Lccl construction to be the most efficient and reliable company to deal with, the initial design phases started immediately their architects attended the property and conducted a full measurement surveys ...
Beh, 30 July