21 Copthorne Mews, Hayes, UB3 4BN

21 Copthorne Mews is a one-bedroom detached house in Hayes (UB3 4BN). It has a recorded floor area of 32 m² (around 344 sq ft), construction records dating it to 2003-2006 and council tax band B. The latest certificate (September 2024) shows a C (score 69), just inside the C band. The rating has held steady at C across 2 certificates since September 2014. Between certificates, roof efficiency went from Average to Good and lighting went from Poor to Very Good; while hot-water efficiency dropped from Average to Poor and main heating dropped from Poor to Very Poor. Main heating runs on electricity. At 32 m² this is the 22nd smallest of 31 units on EPC record in the building, where floor areas span 29–120 m². The building's EPC ratings span E to B across 31 units on file.

Across 2005–2015, sale prices on this property compounded at 5.2% per year. Today's modelled estimate of £191,000 is 24% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£447/sq ft) was about 16.6% above the typical sold price in the postcode. Last sold in February 2015, so it's been off the market for around 11 years. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.