23 First Street, Kensington And Chelsea, London, SW3 2LB

23 First Street is a three-bedroom mid-terrace house in Kensington And Chelsea, London, London (SW3 2LB). It has a recorded floor area of 49 m² (around 527 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (May 2025) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in August 2014 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Poor and lighting went from Poor to Very Good. The recommended improvements would push it to C (score 77). At 49 m² this is the 2nd smallest of 17 units on EPC record in the building, where floor areas span 43–226 m². The building's EPC ratings span E to C across 17 units on file.

Held since March 1999 — that's 27 years off the open market, well above the local norm. Sale prices here have outpaced London HPI: 28.5% per year against 0% for the wider region. Today's modelled estimate of £1,238,000 sits 78.1% above the 1999 sale of £695,000. At 49 m² it sits well below the postcode median (138 m² across 16 EPCs), making it one of the more compact homes locally. 4 planning records sit against the property, 3 approved, 1 refused. Past consents include subdivision, an extension, a conservatory and new windows, meaningful when judging how the property has evolved.