23 Middleton House, Lady Anne Court, Skeldergate, York, YO1 6DT

23 Middleton House is a one-bedroom mid-terrace house in York (YO1 6DT). It has a recorded floor area of 46 m² (around 499 sq ft), construction records dating it to 1996-2002 and council tax band C. At 46 m² this is the 3rd smallest of 6 units on EPC record in the building, where floor areas span 44–79 m². The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (September 2010) shows a D (score 62), on the cusp of jumping into the C band. Main heating runs on electricity. The latest certificate is from September 2010, so improvements made since then won't be reflected.

It hasn't traded since September 1997, a hold of 29 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 £199,000 sits 231.9% above the 1997 sale of £59,950. On a £-per-square-foot basis, the last sale (£120/sq ft) was about 43.2% below the postcode norm. At 46 m² it's 17.1% smaller than the typical home in the postcode (56 m² median across 21 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 76% of similar EPCs).