6 Grampian Close, Harlington, Hayes, UB3 5LQ

6 Grampian Close is a one-bedroom semi-detached house in Harlington, Hayes, Hayes (UB3 5LQ). It has a recorded floor area of 43 m² (around 463 sq ft), construction records dating it to 1950-1966 and council tax band C. At 43 m² this is the smallest unit on EPC record across the building (43–73 m²). The building's EPC ratings span E to C across 5 units on file. The latest certificate (July 2023) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2012. Between certificates, lighting went from Good to Very Good; while wall efficiency dropped from Good to Poor. The recommended improvements would push it to C (score 74).

It hasn't traded since May 1999, a hold of 27 years that's notably long for the area. Across 1995–1999, sale prices on this property compounded at 9.5% per year. Today's modelled estimate of £221,000 sits 268.3% above the 1999 sale of £60,000. On a £-per-square-foot basis, the last sale (£130/sq ft) was about 57.4% below the postcode norm. At 43 m² it sits well below the postcode median (64 m² across 4 EPCs), making it one of the more compact homes locally.