477 High Street, Harlington, Hayes, UB3 5DL

477 High Street is a semi-detached house in Harlington, Hayes, Hayes (UB3 5DL). It has a recorded floor area of 57 m² (around 614 sq ft) and construction records dating it to 1967-1975. The latest certificate (August 2022) shows a D (score 59), a step below the typical UK home. When first surveyed in December 2010 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Average, lighting went from Very Poor to Very Good and main heating went from Poor to Average; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 74). Main heating runs on electricity. At 57 m² this is the 17th smallest of 23 units on EPC record in the building, where floor areas span 39–94 m². The building's EPC ratings span G to B across 23 units on file.

Untraded for 22 years, with the last transfer in October 2004. Across 1999–2004, sale prices on this property compounded at 15.9% per year. Today's modelled estimate of £244,000 sits 87.7% above the 2004 sale of £130,000. It lags the bulk of the postcode on energy efficiency (less efficient than 82% of similar EPCs). 4 planning records sit against the property, 0 approved, 0 refused.