301b, Alexandra Avenue, Harrow, HA2 9DX

301b is a two-bedroom end-of-terrace house in Harrow (HA2 9DX). It has a recorded floor area of 63 m² (around 678 sq ft), construction records dating it to 1930-1949 and council tax band C. At 63 m² this is the 40th smallest of 69 units on EPC record in the building, where floor areas span 42–78 m². The building's EPC ratings span E to B, with this unit at the bottom. On EPC score it ranks last in the building (48 versus a best of 85). The latest certificate (August 2019) shows an E (score 48), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 60).

It hasn't traded since September 1996, a hold of 30 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £281,000 sits 524.4% above the 1996 sale of £45,000. On a £-per-square-foot basis, the last sale (£66/sq ft) was about 76.7% below the postcode norm.