12 Ardmillan Close, Oswestry, SY11 2JZ

12 Ardmillan Close is a three-bedroom detached house in Oswestry (SY11 2JZ). It has a recorded floor area of 94 m² (around 1012 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (July 2017) shows an E (score 51), well below the UK norm with real room to improve. When first surveyed in November 2011 the rating was F, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Average and lighting went from Good to Very Good; while wall efficiency dropped from Poor to Very Poor and roof efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 81), a 3-band jump. Other recorded features include a conservatory.

At 94 m² it's 25.7% smaller than the typical home in the postcode (127 m² median across 10 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2015–2017, sale prices on this property compounded at 3.3% per year. Today's modelled estimate of £284,000 is 42% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£198/sq ft) was about 50.5% above the typical sold price in the postcode. On the market in November 2017 and unlisted since — roughly 9 years.