67 Cowen Avenue, Harrow, HA2 0LU

67 Cowen Avenue is a two-bedroom mid-terrace house in Harrow (HA2 0LU). It has a recorded floor area of 68 m² (around 732 sq ft), construction records dating it to 1996-2002 and council tax band C. The latest certificate (December 2025) returns a B (score 81), comfortably above the UK average. When first surveyed in November 2013 the rating was C, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good and lighting went from Good to Very Good; while window efficiency dropped from Good to Average. This certificate was lodged in the last six months, so the rating reflects current condition. At 68 m² this is the 40th smallest of 71 units on EPC record in the building, where floor areas span 44–94 m². The building's EPC ratings span E to B, with this unit at the top. On EPC score it ranks first in the building (81 versus a worst of 40).

On energy efficiency it sits in the top 10% of properties in this postcode. Across 1998–2014, sale prices on this property compounded at 8.4% per year. Today's modelled estimate of £336,000 is 46.1% above the 2014 sale price. On a £-per-square-foot basis, the last sale (£314/sq ft) was about 34.3% above the typical sold price in the postcode. Last changed hands 12 years ago, in March 2014.