Landmark Lofts - Loft Conversions London | Landmark Lofts

Redefining London Loft Conversions

There is no one size fits all approach when it comes to loft conversions, each house is different, as is every budget. After almost a decade as the leaders in traditional loft conversions in London we also offer offsite built modular lofts.

Traditionally, lofts are made from timber and tend to take around 12 weeks onsite whereas modular lofts, which we build off site, are made from cold rolled steel and can take as little as 14 days to install. Choosing which is right for you depends on a number of factors, including: size of your home, location of your home, your budget and your vision. Our design consultants will work with you to decide which is the best option.

More information on the modular loft process

Landmark Lofts is leading the way in cutting-edge modular loft design and off-site construction across London. We remove the stress and hassle of having a loft conversion in your home. Built in our sister company’s Yorkshire factory and delivered to your property by lorry, modular loft conversions take just fourteen days to install. A similar project, built conventionally in your home, would mean putting up with dust, builders and disruption for twelve weeks.

Not only are modular loft conversions faster and more convenient but they are also designed and constructed to the highest standard. We aim to provide you with innovative yet practical designs that will accommodate the needs of your family into the future and ensure you love where you live.


Modular loft conversions are completely bespoke and designed to meet your London home’s exact specifications. We have an online quotation tool which allows you to build your perfect loft and customise everything from the colour of your roof tiles to your bathroom taps. Your loft will then be designed in 3D allowing you to see exactly how your new space will look and feel without having to figure out complicated plans and sections.


Using innovative 3D laser survey technology to draw up architectural plans ensures we obtain the exact dimensions of each house. Unlike ordinary loft conversions, modular lofts are built with an ultra-strong cold rolled steel frame, eliminating the warping, sagging and settlement cracks that occur with timber lofts.


Our clients told us the most stressful part of having a loft conversion was the ten to twelve weeks on site that it takes to build. Building a modular loft:

  • Requires twenty percent of the on-site work a conventional loft would take
  • Reduces the amount of noise, dust and disruption to you and your neighbours
  • Produces less vehicle emissions as the entire loft comes on one or two lorries
  • Means the loft is of a superior quality, being much stronger, better insulated and more durable
  • Provides you with a totally new roof over your entire home that will last for decades
  • Protects you against delays due to weather and other setbacks
  • Guarantees your loft conversion has been built to an incredibly high and consistent standard
  • Supports jobs in the UK through our use of local materials and our sister company’s Yorkshire factory

Landmark Lofts is part of the Landmark Group - the only group in London specialising in the project management of loft conversions, extensions and refurbishments to include a Chartered Building Company (CIOB), Chartered Architectural Practice (RIBA) and to be regulated by the Royal Institution of Chartered Surveyors (RICS). The Landmark Group specialises in the project management of loft conversions, extensions and refurbishments.

Click here to learn more about these regulators and why they're so important for you.

Royal Institute Chartered Surveyors
Chartered Institude of Builders
Roya lInstitude of British Architects
loftconversions in London, Greater London, UK on Houzz
loftconversions in London, Greater London, UK on Houzz
loftconversions in London, Greater London, UK on Houzz
loftconversions in London, Greater London, UK on Houzz

Areas We Cover

We have helped thousands of clients transform their lofts into beautiful, light-filled living spaces.

We manage loft conversion and extension projects across the Greater London Urban Area up to the M25. If your property is just outside of the London Orbital Motorway, please contact us.

Take a look for yourself

Try clicking the markers on the map below, or enter your postcode to browse projects that closely match your own home …and maybe even gain a little inspiration too.

Project Management - Expert Advice, Unrivalled service

We are the only London loft conversion company to devote significant time and resources to professionally project manage your loft conversion.

All of Landmark Lofts' project managers hold professional qualifications in property and construction and have considerable experience supervising build projects.

By choosing Landmark Lofts to manage your project, you will benefit from having:

  • A qualified RICS or CIOB chartered professional dedicated to your project
  • A single point of contact who will keep you informed and up-to-date with all aspects of your build
  • Project management from planning & design through to final completion.

Track your project at anytime from your mobile phone or tablet with our ingeniously intuitive app

Great advice & tips for loft conversions & home extensions

Extending a living room, transforming a home

Kenny and Rachel have transformed their home with a gorgeous loft conversion and ground floor extension. [READ MORE]

Bright brick feature completes this compact conversion

This loft is a gorgeous dormer that was converted from a 1960s timber-framed roof. Adrian is "delighted" and says "everyone who has been over since the conversion is surprised we could do what we've done." [READ MORE]

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