The proprietor of an 18th Century townhouse in London’s Mayfair, which is a listed building, has been instructed to dismantle an unauthorized basement and restore features that were removed during previous renovations.
Westminster City Council reported that extensive modifications, including changes to ceiling heights, proceeded without the necessary planning approval.
Despite the property being valued at approximately £5 million, the owner’s appeal against this ruling was unsuccessful.
The property owner was contacted for a statement.
A planning request submitted by the owner in 2010 was turned down after the Planning Inspectorate concluded that the proposed changes would detrimentally affect the building’s “special architectural and historic interest.”
However, in 2020, the council discovered that the owner had disregarded the decision and excavated to create a sizable sub-basement beneath the existing basement.
Additionally, the council found that historical features, such as original panelling and fireplaces, were removed.
Westminster City Council mandated that the newly constructed sub-basement be backfilled. This area currently accommodates a cinema, gym, and sauna.
The owner is also required to reconfigure essential services, including electrical and plumbing systems, and restore all fixtures and fittings to their original state as specified in the listing.
It is believed that the expenses for these restoration efforts, which must be completed within a 12-month timeframe, could amount to several hundred thousand pounds.
Labour councillor Geoff Barraclough, who serves as Westminster City Council’s cabinet member for planning and economic development, stated, “I hope this resolution communicates a strong message: those who flout planning regulations will face consequences.”
“It is absolutely unacceptable to undertake works that have been specifically denied planning permission for listed buildings,” he said.
Barraclough criticized the owner for showing “complete disregard” for the property’s historical importance and the council’s ruling.
He further emphasized, “We are dedicated to protecting Westminster’s distinctive architectural heritage.”
