Basement Design

Avian  have a wealth of experience designing and building high quality basement conversions throughout London. We will work with your design company or architect if you prefer to appoint your own, but have a number of trusted partners in the industry that can provide you a full service.

Architectural Drawings

If you opt to use our architectural and design partners, we will arrange a meeting for you to discuss your requirements and for our partners to put together plans based on your brief. Our partners are RIBA qualified, and have a wealth of experience working on domestic and commercial projects throughout London.

They will work with you from the initial design concept, through the planning application, and into the build to ensure that your new basement meets your needs. Detailed computer generated drawings will ensure that you have a good understanding of how your basement will look, and can make changes before the work starts.

We also work closely with a Structural Surveyor to provide all structural calculations for the build.


Building Control

In addition to detailed drawings and in-depth design consultations, building control is an essential part of the build to have the project approved and ensure that the new structure is safe. Building Control will visit the site at various stages throughout he build to inspect the work and ensure it’s being built to the current standards. They will provide advice and may ask for alterations to be made to the build – our extensive experience means that this is incredibly rare and we often build to exceed the basic standards laid out by building regulations.

You can choose to appoint a local council Building Controller or a privately registered building control company. Both will work to the same guidelines and will issue final completion certificates once they are satisfied with the work.

ANY QUESTIONS? CALL 020 3174 1241
Case Studies

Loft Conversions Add a Fifth to Property Values

Loft conversions are one of the best ways to make your home more spacious – an intelligently-designed conversion can add as much as 30% more living space to your home without extending the footprint of your house. As with all home improvements, conversions also increase the value and sale-ability of your home. A study by […]

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The client wanted to make extensive improvements to her home in Wandsworth, including a loft conversion, a kitchen extension, and alterations to her existing lounge and one of the existing bedrooms. All of the work took around 12 weeks and they were extremely happy with the results.  


Avian Construction Ltd

Peterden House
1A Leighton Rd
West Ealing
W13 9EL

020 3174 1241