Flat 1, 18 St Marys Close, Stockport, SK1 4BT

Flat 1 is a semi-detached house in Stockport (SK1 4BT). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to 1991-1995 and council tax band A. At 51 m² this is the smallest unit on EPC record across the building (51–51 m²). On EPC score it ranks last in the building (72 versus a best of 80). The latest certificate (May 2016) shows a C (score 72). The rating has held steady at C across 3 certificates since September 2010. Between certificates, lighting went from Poor to Average; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The latest certificate is from May 2016, so improvements made since then won't be reflected.

Held since November 2010 — that's 16 years off the open market, well above the local norm. Today's modelled estimate of £127,000 is 15.5% above the 2010 sale price. On a £-per-square-foot basis, the last sale (£200/sq ft) was about 91.3% above the typical sold price in the postcode.