15 Penybryn Avenue, Whittington, Oswestry, SY11 4DL

15 Penybryn Avenue is a three-bedroom semi-detached house in Whittington, Oswestry, Oswestry (SY11 4DL). It has a recorded floor area of 76 m² (around 818 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (March 2021) shows a D (score 68), on the cusp of jumping into the C band. Earlier certificates rated it C (October 2008); the latest reading is one band lower. Between certificates, roof efficiency went from Average to Very Good and lighting went from Poor to Very Good; while wall efficiency dropped from Good to Average and main heating dropped from Very Good to Good. The recommended improvements would lift it to B (score 82), a 2-band jump. It has already been extended once and our model flags further extension potential, a sign of buyer flexibility.

Today's modelled estimate of £177,000 sits 190.2% above the 2013 sale of £61,000. On a £-per-square-foot basis, the last sale (£75/sq ft) was about 57.3% below the postcode norm. On the market in October 2013 and unlisted since — roughly 13 years. At 76 m² it's 18.3% smaller than the typical home in the postcode (93 m² median across 17 EPCs).