contact Info

12th Floor, Capital House, 25 Chapel Street, London, NW1 5DH

+(44) 203 988 7994

Specialist and general
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+ Specialist & General Construction

We aim to exceed expectations, whatever the project involves. Whether it’s building a new structure within an existing shell, or a complete new-build project, Knowles’ construction service covers every aspect of a project, from enabling works prior to sub or super-structure construction through to full management as principal contractor and the coordination of subcontractors and specialist trades.

+ Working as Principal Contractor

From super-prime townhouses and luxury commercial contracts to Country Estates, Knowles has delivered some of the UK’s most remarkable projects.

As Principal Contractor, Knowles has a very sucessful track record working on a wide range of buildings. Our team has many decades of experience and has undertaken complex work on historic buildings, challenging structural contracts in Central London and built architecturally important new private residences.

+ Shell & Core

Knowles is renowned for delivering shell and core projects across London and the Home Counties. The benefits of a shell and core service is that it enables developers, architects and private clients to start works and lay vital foundations whilst still finalising the internal design and special finishes, ensuring that the programme remains on track.

Knowles’ ability to deliver the shell and core phase offers significant benefits as it allows for construction works to commence whilst Clients and Architects have the extra time they need to work on the finishing design details.

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Delivered by Knowles
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+ Enabling Works

With our knowledge and expertise in enabling works there’s no need for multiple subcontractor visits and assessments. We identify any necessary works before advising on how best to implement your design within your specified space and time frames.

+ Delivery by Knowles

With our in-house teams, of whom hold a range of disciplines, we rely less on external subcontractors than our competitors. We are able to rapidly start projects for the enabling phase, achieve programme gains during structural work and generally maintain greater overall control.

+ Finishes

We draw on our vast network of interior designers, preferred suppliers and specialist trades to deliver the perfect finish.

Our services include:


Joinery and carpentry


Floor and wall finishes


Lighting and audio-visual installation


Subterranean car garages


Swimming pool construction