Apartment 15, 67 Grosvenor Street West, Birmingham, B16 8HJ

Apartment 15 is a three-bedroom semi-detached house in Birmingham (B16 8HJ). It has a recorded floor area of 135 m² (around 1453 sq ft), construction records dating it to 2003-2006 and council tax band D. At 135 m² this is the largest unit on EPC record across the building (47–135 m²). The building's EPC ratings span E to D, with this unit at the bottom. On EPC score it ranks last in the building (42 versus a best of 64). Other recorded features include a balcony. The latest certificate (October 2016) shows an E (score 42), well below the UK norm with real room to improve. When first surveyed in April 2009 the rating was F, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good and lighting went from Good to Very Good; while hot-water efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 69), a 2-band jump. Main heating runs on electricity.

Held since December 2009 — that's 16 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. At 135 m² the property is well over the postcode median (58 m² across 12 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). Today's modelled estimate of £255,000 is 34.2% above the 2009 sale price. On a £-per-square-foot basis, the last sale (£131/sq ft) was about 43.4% below the postcode norm.