Detailed Building LTD
Basement Conversions
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Basement Conversions in Barking, Chelsea, Kensington and the Surrounding Areas

Many homes have basements that are dark, damp spaces unsuitable for use. By choosing to undergo one of our basement conversions, you change this space into an inhabitable room that can be used to house a swimming pool, home cinema, private gym, or even underground parking. If you want to utilise this valuable space in your Kensington, Chelsea, Barking or nearby home, our highly experienced building contractors are just a phone call away from taking on your property refurbishment.

Our Basement Conversions

As specialists in basement conversions, we offer comprehensive construction services from digging to internal fit-out and finishing. Using the plans drawn up by our client’s chosen architect, we bring your bespoke vision to life, allowing you to transform unused space into a fully functional room. For inspiration on how to utilise your new basement, we invite you to visit our company blog.

From bowling alleys to spas and playrooms to additional lounge space, our work enables you to transform your London property into a dream home whilst adding value that makes these refurbishments a financially sound investment. Our building contractors construct Type B waterproofing reinforced basements that are strengthened with steel and concrete. 

What is Type B Waterproofing?

  • Refers to any integrated waterproofing system that results in the structure being waterproof by design.

  • Typically means that the functionality of the system is established at the waterproofing design stage and integrated during construction.

  • This involves the use of reinforced concrete with added waterproofing features at construction joints.

  • New basements using this system must adhere to specific parameters defined by the British Standards Institute (BSI) code of practice BS8102:2022.

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Learn More About Our Construction Process

The construction process for basement conversions in the UK typically involves the following steps:

  • Planning Permission

  • Building Regulations Application

  • Design and Consultation

  • Waterproofing

  • Other Considerations

Planning Permission

Whether or not planning permission is required depends on the type of work being done. Converting an existing cellar into a living space is usually considered a "change of use" and doesn't require planning permission. However, excavating to create a reinforced basement usually requires planning permission. 

Building Regulations Application

Basement conversions must meet minimum health, safety, and welfare standards, usually done by obtaining Building Regulations approval. 

Design and Consultation

A surveyor will visit your Barking, Kensington or Chelsea home to advise on the type of basement and achievable layout. They will also provide a budget estimate for the work.

Waterproofing

Waterproofing, also known as tanking, involves applying a waterproof coating or membrane to the outside of the basement. This prevents damp and mould, and ensures the basement is structurally sound.

Other Considerations

Our considerations include ventilation, safe access, means of escape in case of fire, smoke alarms, and electrical wiring. Our building contractors ensure your new basement is fully insulated with adequate heating and lighting.

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Learn more about the basement conversions we offer homeowners across Kensington and Chelsea and Barking by calling our team on 07482 161668 or 07479 791917.
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