Flat 1, 12 Northumberland Street, Birmingham, B7 4HN

Flat 1 is an end-of-terrace house in Birmingham (B7 4HN). It has a recorded floor area of 73 m² (around 788 sq ft), construction records dating it to 1930-1949 and council tax band A. At 73 m² this is the largest unit on EPC record across the building (68–73 m²). The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (46 versus a best of 72). The latest certificate (February 2010) shows an E (score 46), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 70), a 2-band jump. The latest certificate is from February 2010, so improvements made since then won't be reflected.

It hasn't traded since November 2010, a hold of 15 years that's notably long for the area. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £134,000 sits 94.2% above the 2010 sale of £69,000.