11 Byron Avenue, Bridgend, CF31 4QD

11 Byron Avenue is a four-bedroom semi-detached house in Bridgend (CF31 4QD). It has a recorded floor area of 80 m² (around 865 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (March 2012) shows an E (score 53), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since June 2010. Between certificates, roof efficiency went from Very Poor to Average, hot-water efficiency went from Average to Good and lighting went from Poor to Average. The recommended improvements would push it to D (score 56). The latest certificate is from March 2012, so improvements made since then won't be reflected. It has already been extended once and our model flags further extension potential, a sign of buyer flexibility.

Across 2011–2013, sale prices on this property compounded at 26% per year. Today's modelled estimate of £239,000 sits 64.8% above the 2013 sale of £145,000. On a £-per-square-foot basis, the last sale (£168/sq ft) was about 17.6% above the typical sold price in the postcode. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). Last sold in May 2013, so it's been off the market for around 13 years.