Neighbour wants basement extension – Property at risk?

Neighbour wants basement extension – Property at risk?

10:37 AM, 25th November 2022, About A year ago 4

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It’s actually a friend whose neighbour wants to build the basement. Not only does my friend really not want the months of noise, and disruption of spoil/materials coming in and out of the tiny cul-de-sac; she’s concerned about the risk of damage to her own property, especially cracks.

First, can anyone suggest great ideas to discourage the neighbour?

If not, what legal protection can she get e.g. indemnity contract enforceable against the neighbour?

Any other ideas?

Thank you.


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Edward Prentice

15:33 PM, 25th November 2022, About A year ago

Adrian There may be a route for your friend to talk with the local planning authority, who may not grant permission.
If it has permission, she needs to find a local Party Wall surveyor through RICS Find a Surveyor to act for her.
Their costs will be paid by the developing neighbour.

Wyn Burgess

9:34 AM, 26th November 2022, About A year ago

Basements were all the rage a few years ago, I had hoped the trend would pass as the issues they can cause with damage to adjoining properties etc. the basements I have visited professionally don't get used much once their novelty has worn off. They are also at extreme risk of flooding in some parts of London. Hopefully the neighbour will see sense especially when they see the cost.


11:33 AM, 26th November 2022, About A year ago

They will need planning permission for a basement. If granted all your friend can do is ensure they have a very experienced party wall surveyor act for them (which will have to be paid for by the neighbour). The neighbour is liable for any damage to their property but I’ve seen severe damage caused once to a neighbours house by a basement build two doors down from a house I used to own. The poor neighbours had been planning to sell and retire in the countryside. They had to delay that for a couple of years whilst they battled it out to get everything fixed, and then sell at a discount as well.

Adrian of Leigh

11:55 AM, 3rd December 2022, About A year ago

Thanks all for your responses; I will pass these on.

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