Flat 1, 19 St Marys Close, Stockport, SK1 4BT

Flat 1 is a 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). The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (65 versus a best of 78). The latest certificate (May 2016) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2016. Between certificates, wall efficiency went from Poor to Good. The recommended improvements would push it to C (score 74). The latest certificate is from May 2016, so improvements made since then won't be reflected.

On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1999–2011, sale prices on this property compounded at 5.2% per year. Today's modelled estimate of £122,000 sits 413.7% above the 2011 sale of £23,750. On a £-per-square-foot basis, the last sale (£43/sq ft) was about 59.1% below the postcode norm. Last changed hands 15 years ago, in October 2011.