12 Onslow Mews West, Kensington And Chelsea, London, SW7 3AF

12 Onslow Mews West is a four-bedroom mid-terrace house in Kensington And Chelsea, London, London (SW7 3AF). It has a recorded floor area of 169 m² (around 1819 sq ft), construction records dating it to 1976-1982 and council tax band H. The latest certificate (May 2017) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 80). Period features are noted in the property record.

Held since April 2006 — that's 20 years off the open market, well above the local norm. At 169 m² the property is well over the postcode median (109 m² across 11 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 73% of similar EPCs). Across 1998–2006, sale prices on this property compounded at 11.5% per year. Today's modelled estimate of £3,007,000 sits 136.1% above the 2006 sale of £1,273,500. On a £-per-square-foot basis, the last sale (£700/sq ft) was about 84.4% above the typical sold price in the postcode. 4 planning records sit against the property, 3 approved, 1 refused. Past consents include a basement excavation, meaningful when judging how the property has evolved.