Claridge House, Flat 6, 13 Belsize Park, London, NW3 4ES

Claridge House is a semi-detached house in London (NW3 4ES). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 1900-1929 and council tax band E. At 65 m² this is the 4th smallest of 5 units on EPC record in Claridge House, where floor areas span 41–104 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (May 2025) shows a C (score 73). When first surveyed in May 2010 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Very Poor to Good and window efficiency went from Poor to Average.

It hasn't traded since September 2010, a hold of 16 years that's notably long for the area. Today's modelled estimate of £795,000 sits 52.2% above the 2010 sale of £522,500. On a £-per-square-foot basis, the last sale (£747/sq ft) was about 34.6% above the typical sold price in the postcode. 5 planning records sit against the property, 1 approved, 0 refused. Past consents include new windows, meaningful when judging how the property has evolved.