BJBabb | Mansion

Mansion, Westminster

A light, airy townhouse and mews in central London. Carefully restored to create a lavish home that retains original period features, whilst incorporating the thoroughly modern luxuries of a swimming pool, sauna and cinema room. Bespoke features abound, including timber doors, framed windows and flooring.


Our client purchased a six-storey townhouse and four-storey mews house, which had been converted into multiple flats. The brief was to renovate both properties to create one dwelling, constructing a new extension and transforming the two buildings into a unified, airy and contemporary home.


As well as entirely refurbishing both properties, we extended between the two, excavating into the basement to form a swimming pool, sauna and steam rooms below ground and living areas above. We restored existing façades, built Mansard roofs, and refurbished internally using clean lines, and a minimalist modern style with classical features. Other bespoke features include a cinema room, flat roof terrace and custom-made wardrobes.


  • Excavation and underpinning
  • Demolition, steel and structural works
  • Formation of swimming pool, sauna and steam rooms
  • Façade restoration
  • Construction of mansard roofs
  • Reconfiguring internal layout
  • Full electrical, mechanical and plumbing installation
  • Cinema room
  • Bespoke timber flooring, wall panelling, cornicing, skirting, architraves, timber doors and timber framed windows
  • Flat roof terrace and waterproofing
  • Bespoke iron staircase railings
  • Kitchen installation with marble flooring and tiling
  • Custom-made wardrobes
  • Plastering and decorating