12 Barnsbury Avenue, Aylesbury, HP20 1NL

12 Barnsbury Avenue is a semi-detached house in Aylesbury (HP20 1NL). It has a recorded floor area of 67 m² (around 719 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (September 2010) shows an F (score 34), near the bottom of the EPC scale. The rating has held steady at F across 2 certificates since August 2009. Between certificates, wall efficiency went from Poor to Good and hot-water efficiency went from Very Poor to Poor; while roof efficiency dropped from Good to Very Poor. The recommended improvements would push it to E (score 41). Main heating runs on electricity. The latest certificate is from September 2010, 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. 9 years since the last transfer (September 2017). Across the public record there are 4 sales, relatively high churn for a single property. Across 2007–2017, sale prices on this property compounded at 4.2% per year. On a £-per-square-foot basis, the last sale (£324/sq ft) was about 68.2% above the typical sold price in the postcode.