17 Cadogan Street, where, the owner of bottom flat interior designer Olivia Walton dug out a basement causing the upper flat floor to shift and walls to crack. <br /> <br /> A surveyor awarded the upstairs owner £113,000 under the party wall act in April 2018 and Walton whose father is worth £50 million and whose flat is worth £3.5 million has only offered to pay upstairs owner Michele Napp £1500 a month, which will take 6 years. London, September 11 2018.
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