3 Hill House, Cavendish Avenue, Harrow, HA1 3RD

3 Hill House is a two-bedroom semi-detached house in Harrow (HA1 3RD). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1930-1949 and council tax band C. At 55 m² this is the smallest unit on EPC record across the building (55–59 m²). The latest certificate (August 2018) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in June 2017 the rating was G, the property has climbed 3 bands since. Between certificates, roof efficiency went from Very Poor to Very Good, window efficiency went from Very Poor to Average and hot-water efficiency went from Very Poor to Good; while wall efficiency dropped from Poor to Very Poor. The recommended improvements would push it to C (score 74).

At 55 m² it sits well below the postcode median (103 m² across 20 EPCs), making it one of the more compact homes locally. Today's modelled estimate of £326,000 is 16.4% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£473/sq ft) was about 93.5% above the typical sold price in the postcode. Last sold in April 2018, so it's been off the market for around 8 years.