Basement Conversion: Can I Do It?

A basement conversion is often a fantastic solution to extending your home, whether you are an expanding family, wanting to create a separate living space or you simply want more space. It can be a great alternative to moving house. It can also boost the value of your property, which is another real incentive to take the plunge.

But, can it be done below your home? That’s a good question. There are various points, quite apart from planning permission, that you need to think about, go through and tick off as having checked, when you’re looking at doing a basement conversion.


Under the Party Wall Act 1996, you are obliged to let your neighbours know if you are going to carry out building work near or on shared property borders.

The work you carry out could have an impact on their home, which is why it is important to let your neighbours know that you are planning a conversion. This is especially relevant to work taking place in London, where there are many party walls.

It’s always good to talk – it could be that your neighbours are able to give you further information on what’s below you, if they have done or looked into similar works themselves.


What land do you own?

It’s also important to figure out where your property ownership ends. Do you own the land below the pavement? Can you extend out of the front of your house? You will need to check to see to what extent that land is yours.


It is also important to look at the structural stability of your existing property to ensure it is secure enough to withstand the work. This is information you will be able to get from structural engineers.


There will be a lot to think about, but there are many helpful resources which can support you through the process. You can find out more about party walls on the Government’s website.  

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