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

1 Bryanston Mansions is a four-bedroom semi-detached house in London (W1H 1DA). It has a recorded floor area of 152 m² (around 1636 sq ft) and construction records dating it to before 1900. At 152 m² this is the largest unit on EPC record across 1 Bryanston Mansions (79–152 m²). The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (August 2023) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in June 2009 the rating was E, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 76).

Sale prices here have outpaced London HPI: 8.8% per year against 0% for the wider region. Today's modelled estimate of £2,771,000 is 26% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£1,345/sq ft) was about 50.7% above the typical sold price in the postcode. At 152 m² the property is well over the postcode median (116 m² across 20 EPCs), placing it in the larger end of the local stock. On the market in March 2018 and unlisted since — roughly 8 years.