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We have written at length about new build basements, so here is a post about how to create a new basement in an existing property. You may be surprised by the amount of times we have been asked to give advice on building a basement on a first floor property. I am not sure how many of these were a hoax but let’s start here and stress the point: You have to own the floor on the ground level at the very least to create a new basement.

Planning permission is required on almost all retrofit basements so the place to start would be to take on the services of an architect but not just any architect, ask if they have done a basement before. In the case of both structural engineers and architects, experience is key. Most professionals will be able to help, but experienced pros will know their way around trickier situations easier because they have dealt with them before.

When our team gets involved in helping you in how to create a new basement, all of our services are in house to get the most done in the least time. They have worked together for many years and bring solid value to any new basement creation.

The last part after all the paperwork is in order, is the actual build portion. The house foundation is underpinned, the basement is dug out (Usually by hand as this is the quietest and quickest method coupled with conveyor spoil removal) and the new floor is poured and tanked. Waterproof membrane is used to line the walls and the drywall is put in place. A sump/pump water extraction system is put in place to stop basement flooding and the fit out can begin. The fit out is the last bit in how to create a basement as it includes all the final finishing.