20 Antringham Gardens, Birmingham, B15 3QL

20 Antringham Gardens is a four-bedroom detached house in Birmingham (B15 3QL). It has a recorded floor area of 126 m² (around 1356 sq ft), construction records dating it to 1950-1966 and council tax band G. The latest certificate (November 2013) shows an F (score 34), near the bottom of the EPC scale. The rating has held steady at F across 2 certificates since September 2013. The recommended improvements would lift it to B (score 83), a 4-band jump. The latest certificate is from November 2013, so improvements made since then won't be reflected.

Held since September 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Sale prices here have outpaced Birmingham HPI: 4.1% per year against 0% for the wider region. Today's modelled estimate of £671,000 sits 67.8% above the 2007 sale of £400,000. On a £-per-square-foot basis, the last sale (£295/sq ft) was about 39.4% above the typical sold price in the postcode. At 126 m² it sits well below the postcode median (189 m² across 17 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.