Basement Conversions in the South East

Performance Foundations has been supporting clients with their basement conversion projects in London and the South East for over 45 years. We work alongside your existing builders, interior designers and architects to help you achieve the basement extension of your dreams.

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020 30112442

Basement construction and extensions for residential and commercial projects

With the support of our experienced engineers, we are able to help you maximise the use of your space. Utilising the latest piling and construction techniques, our innovative solutions help clients who may have restricted access but are hopeful to extend their home into the basement.

From underpinning to reinforced concrete walls, our basement construction services are built to last and will be completely waterproof.

If you are in very early stages of planning a basement construction project then we can provide you with access to our network of architects and engineers so you can begin planning each stage of your project.

There are different types of basement conversions

For some basement conversion projects we are able to offer alternatives to provide you with the ultimate basement extension.

Double Level (Sub-Basement)
These types of basement provide multiple levels so you can make the most of the land beneath your property.

Under garden excavation and extensions
These projects are popular in urban environments such as in London where space is limited and properties are smaller. Extending under a garden space is a good option to consider to increase the size of your property..

Planning permission for basement conversions – do I need it?

You are likely to require planning permission if you do not already have an existing basement. For some jobs we take on, there is already space below the house that requires our expertise such as waterproofing and maintaining retaining walls. If you are embarking upon a project without existing space, it is advisable to discuss planning permissions with your local authority planning department advisers or your construction manager who will be able to get the information on your behalf.

Benefits of a basement conversion

Basement conversions and extensions provide a range of benefits to different households:

  • Extend your current home to adapt to what you need

  • Create extra space for home gyms, extra bedrooms and home office space

  • Add value to your current home

  • Extend even if space is limited or you are in a terraced house

We’re family owned and operated with over 45 years’ construction, piling and groundwork experience

We’ve worked on a variety of piling projects and work hard to provide the excellent customer service and the high quality of workmanship we’ve become known for. From home extensions to large commercial piling contracts, our commitment to each client remains the same. It’s this personal touch that sets us apart and is the reason why Performance Foundations is chosen to work on many projects with the same clients.

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