Posh Flat built above the Old Operating Theatre Museum

Appartment in Tower of St Thomas Church
Tower of St Thomas Church

https://www.mylondon.news/news/property/gallery/inside-stunning-church-tower-next-18969186

The Old Operating Theatre Museum is in St Thomas Church, Southwark, part of the old St Thomas Hospital. The Church, built in 1703, by Thomas Cartwright has a fine baroque Tower, the top two chambers of which have been empty for many years. The conversion to a bijou pied a terre has been completed and details can be found in the link above.