15 years of



Covering London and Hertfordshire, United kingdom. Here are the many types of loft conversions that loft conversion company London design and build:

  • Dormer loft conversions

  • Hip to gable loft conversions

  • Mansard loft conversions

  • L shape loft conversions

  • Prices from £18k

  • Loft company near me

  • Loft conversion company

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 

Twickenham, London Tw1 Loft Conversion Project

Architecture design and build of the loft conversion located in South West London. 

Loft conversion 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.

We offer services of building, construction the Loft conversion or Design and Build services where we design the loft conversion and then build.

Loft Conversions Planning Permission

Information about local planning permission guidelines on loft conversions click here >

Loft Conversion


How much will it cost me, what are the costs associated with the loft conversions find out >

Type of Loft Conversions

What type of loft conversions are there? Dormer Lofts, Hip to Gable Lofts find out more >

Loft Conversion


What will loft conversion add to my property value, how much value the loft add find out >

Loft Conversion Service Locations

What areas in London and Hertfordshire do we cover. Find out more click here >

Design and Build Process

Loft conversions design and build process, what are the stages of design build find out >

Our experience has allowed us to simplify the process of design, build and management, which means all the services are in one place delivering results to highest standards and on time. We only have experienced people working with us and each stages are broken down into smaller stages to ensure each stage is managed, regulated and complied with government standards.

We are a certified, accredited and fully insured company delivering construction services across London and Nationally. We are fully compliant with government and industry standards. 


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

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More about Lccl Construction (Loft Conversion Company London Limited)

Why are we London and Hertfordshire leading loft conversion company?

We have the experience, skills and credibility to build any type of loft conversion in London and Hertfordshire. We offer both design services of the loft conversions and construction of the loft conversions. Have a look at our Portfolio! We have a 10 year guarantee for peace of mind. Find out what is the loft conversion cost, our loft conversion cost calculator will present you with a quote in seconds.


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

How much will my loft conversion cost in London and Hertfordshire?

The costs for loft conversions in London and Hertfordshire start from £18,000. The costs can depend on many factors such as type of house that it is, size of the house, size of the loft conversion or whether it is velux loft conversions, dormer loft conversions, hip to gable loft conversions, mansard loft conversions or L shape loft conversions. Get started get instant quote online.


Areas covering and nearby areas we cover in London and Hertfordshire

Lccl construction, loft conversions company services covers across London, North London, North West London, East London, South London, West London, South West London, South East London, North East London, Central London, Essex and Hertfordshire. The specific areas of our loft conversions company services would include in Barnet, Borehamwood, Elstree, Hadley Wood, Cockfosters, East Barnet, Whetstone and Totteridge, North Finchley, Woodside Park, Hendon, Colindale, Watford, Bushey, Finchley, St Albans, Potters Bar, Brent, Hampstead, Westminster, Chelsea, Ealing, Edgware, East Finchley, Wood Green, Palmers Green, New Southgate, Bow, Southgate, Cockfosters, Oakwood, Radlett, Muswell Hill, Highgate, Stoke Newington, Forest Hill, Hackney, Stratford, Crouch End, Walthamstow, Harringay, Chigwell, Dulwich, Lewisham, Twickenham, Richmond, Westminster, Kensington, Broxbourne, Walthamstow, Harringay, Wembley, Islington, Eltham, Brent, Watford, Camden, Enfield and many more areas get in touch to confirm if we cover your area. We are fully compliant with government and industry standards. We cover 85 mile radius from our offices in Barnet, London and Borehamwood, London.

Loft conversion company services locations for London, UK and Hertfordshire, UK that we cover for loft conversions. If the area is not listed on the below locations, give us a call to check whether we cover your location, we cover all areas in London and Hertfordshire.

The loft conversions locations for London, United Kingdom:

The loft conversions locations for Hertfordshire, United Kingdom:

loft conversion company hertfrodshire

loft conversion company borehamwood

loft conversion company potters bar

loft conversion company st albans

loft conversion company watford

loft conversion company rickmansworth

loft conversion company brookmans park

loft conversion company cheshunt

loft conversion company northaw

loft conversion company cuffley

loft conversion company goffs oak

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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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