1 Granby Court, Rosslyn Crescent, Harrow, HA1 2WY

1 Granby Court is a semi-detached house in Harrow (HA1 2WY). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 2003-2006 and council tax band E. At 55 m² this is the smallest unit on EPC record across the building (55–76 m²). The building's EPC ratings span E to B across 10 units on file. The latest certificate (June 2025) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2015. Between certificates, hot-water efficiency went from Very Poor to Average; while window efficiency dropped from Average to Poor and lighting dropped from Very Good to Poor. The recommended improvements would lift it to B (score 82), a 2-band jump. Main heating runs on electricity.

It hasn't traded since June 2006, a hold of 20 years that's notably long for the area. At 55 m² it's 21.4% smaller than the typical home in the postcode (70 m² median across 9 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 78% of similar EPCs). Today's modelled estimate of £350,000 is 40% above the 2006 sale price. On a £-per-square-foot basis, the last sale (£422/sq ft) was about 30.4% above the typical sold price in the postcode.