23 Bryanston Mansions, York Street, London, W1H 1DA

23 Bryanston Mansions is a two-bedroom end-of-terrace house in London (W1H 1DA). It has a recorded floor area of 72 m² (around 775 sq ft) and construction records dating it to before 1900. At 72 m² this is the smallest unit on EPC record across the building (72–159 m²). The building's EPC ratings span E to C across 21 units on file. Other recorded features include a balcony. The latest certificate (January 2017) shows a D (score 56), a step below the typical UK home.

Held since February 1997 — that's 29 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £978,000 sits 414.7% above the 1997 sale of £190,000. On a £-per-square-foot basis, the last sale (£245/sq ft) was about 73.2% below the postcode norm. At 72 m² it sits well below the postcode median (118 m² across 20 EPCs), making it one of the more compact homes locally.