555b, Pinner Road, Harrow, HA2 6EQ

555b is a mid-terrace house in Harrow (HA2 6EQ). It has a recorded floor area of 87 m² (around 936 sq ft) and construction records dating it to 1930-1949. The latest certificate (September 2019) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in June 2009 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Average. The recommended improvements would push it to C (score 74). At 87 m² this is the 6th smallest of 7 units on EPC record in the building, where floor areas span 38–87 m². The building's EPC ratings span D to C, with this unit at the bottom.

Held since June 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 87 m² the property is well over the postcode median (62 m² across 6 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £289,000 sits 57.9% above the 2007 sale of £183,000. On a £-per-square-foot basis, the last sale (£195/sq ft) was about 15% below the postcode norm.