19 Mayfair House, Piccadilly, York, YO1 9QJ

19 Mayfair House is a two-bedroom mid-terrace house in York (YO1 9QJ). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to 1996-2002 and council tax band D. The latest certificate (December 2021) returns a B (score 81), comfortably above the UK average. When first surveyed in January 2011 the rating was C, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Poor to Average, lighting went from Average to Good and main heating went from Poor to Average; while window efficiency dropped from Good to Average. Main heating runs on electricity. At 70 m² this is the 15th 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.

Held since April 2000 — that's 26 years off the open market, well above the local norm. 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 £279,000 sits 100.8% above the 2000 sale of £138,950. On a £-per-square-foot basis, the last sale (£184/sq ft) was about 22.9% below the postcode norm.