Marylebone W1u

Loft Conversions Company in Marylebone W1U

Loft Conversions Company Marylebone W1U

Loft conversion company Marylebone W1U. Lccl Construction leading loft conversions company in London and Hertfordshire areas. At Lccl Construction we have two options that we offer to our clients, one is where we design & build Loft Conversions and another option is where we only build Loft Conversions.


Get instant quote for your loft conversion, including architecture and construction

Type of loft conversions we do including architecture and construction, get your instant design and build quote 

  • Dormer_loft_conversion.png

    Dormer loft


  • Hip_to_gable_loft_conversion.png

    Hip to gable loft


Loft Conversions Company Marylebone W1U

With the Design & Build option our highly qualified and experienced team run the whole project for you. Starting with the planning and building regulations, through the construction process and interior design, to the completion of your beautiful loft conversion.

Our Loft Conversions prices start from £18,000.00 get your instant quote click here!

We can design and build Dormer Loft Conversions, Hip to Gable Loft Conversions, L Shape Loft Conversions, Mansard Loft Conversions, Velux Loft Conversions. On any type of property types Terraced House, Semi Detached House, Detached House, End of Terrace House, Listed Houses, Residential Buildings and more.

We cover the whole of London and Hertfordshire. From start to finish we will design and build your loft conversion. Head over to our Design and Build page to find out more about design and build stages > 

Loft conversions company are the perfect way to increase the space used in your home without having to compromise on any existing outdoor area. They increase the value of your home by adding an extra bedroom, study, games room or make a space larger to provide you with en-suite facilities. They are generally quicker to complete compared to other types of home extensions and generally do not require planning permission.

Most loft conversions involve adding an extra floor to an existing two storey house or bungalow. Popular choices are Dormer loft conversion with front and rear Velux, Hip to Gable, Mansards or L shaped loft conversions.

You can dive right on in and get started or get to know us better, check out our knowledge base

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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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It does not matter at what stage you are in book with us a consultation call online it is quick and simple, free of charge.

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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