17c, King Henrys Road, London, NW3 3QP

17c is a mid-terrace house in London (NW3 3QP). It has a recorded floor area of 46 m² (around 495 sq ft) and construction records dating it to 1900-1929. At 46 m² this is the 5th smallest of 21 units on EPC record in the building, where floor areas span 32–144 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (June 2014) shows a C (score 72). When first surveyed in October 2008 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Poor. The recommended improvements would push it to B (score 82). The latest certificate is from June 2014, so improvements made since then won't be reflected.

Untraded for 18 years, with the last transfer in January 2008. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £620,000 is 49.8% above the 2008 sale price. On a £-per-square-foot basis, the last sale (£836/sq ft) was about 24.4% above the typical sold price in the postcode. At 46 m² it's 24.6% smaller than the typical home in the postcode (61 m² median across 45 EPCs).