The last mega basement house likely to be built in Knightsbridge is nearing completion of structural works, and is expected to go on sale at £75m once finished.
Property developer K10
Group is redeveloping Amberwood House on Thurloe Place into what is described as a
‘palatial modern residence’ of 15,300 sq ft. The existing property is being
completely reconstructed behind the façade with a 12m deep three storey
basement incorporating a cinema/clubroom and 12m pool said to be the largest in
The project is proving
particularly challenging from a construction point of view as the new basement occupies
almost the entire footprint of the site, extending outwards beyond the existing
A basement of this size – a so-called mega basement – may not be possible again in the area, according to the contractors. Since planning permission for Amberwood House was granted the London Borough of Kensington & Chelsea has introduced restrictions to curb so-called iceberg developments – new basements may not exceed 4.5m maximum dig and are not permitted under listed buildings at all.
Impressive though this
project is as a piece of engineering, it will also be interesting to see what
impact a possible future shortage of large and lavish new basement developments
has on the prime central London market.