Northcote Mansions, Flat 1, 122 Heath Street, London, NW3 1DT

Northcote Mansions is a semi-detached house in London (NW3 1DT). It has a recorded floor area of 130 m² (around 1399 sq ft) and construction records dating it to 1900-1929. At 130 m² this is the smallest unit on EPC record across Northcote Mansions (130–139 m²). The building's EPC ratings span D to C, with this unit at the top. The latest certificate (January 2023) shows a C (score 69), just inside the C band. When first surveyed in November 2008 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Poor and hot-water efficiency went from Average to Good. The recommended improvements would push it to B (score 82).

Its energy rating outperforms most of the postcode (better than 75% of similar EPCs). On the market in July 2011 and unlisted since — roughly 15 years. Across 2003–2011, sale prices on this property compounded at 26.6% per year. Today's modelled estimate of £1,376,000 is 43.3% above the 2011 sale price.