15 Mayfair House, Piccadilly, York, YO1 9QJ

15 Mayfair House is a two-bedroom mid-terrace house in York (YO1 9QJ). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 1996-2002 and council tax band F. The latest certificate (December 2021) returns a B (score 83), comfortably above the UK average. The rating has held steady at B across 2 certificates since April 2009. Between certificates, hot-water efficiency went from Poor to Average and main heating went from Poor to Average; while window efficiency dropped from Good to Average and lighting dropped from Very Good to Very Poor. Main heating runs on electricity. At 65 m² this is the 12th smallest of 24 units on EPC record in the building, where floor areas span 43–119 m². The building's EPC ratings span D to B, with this unit at the top. The property has solar panels on record, all of which lower running costs and tend to lift resale appeal.

It hasn't traded since June 2000, a hold of 26 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £274,000 sits 119.3% above the 2000 sale of £124,950. On a £-per-square-foot basis, the last sale (£179/sq ft) was about 25.4% below the postcode norm.