10 Onchan Avenue, Oldham, OL4 1BJ

10 Onchan Avenue is a mid-terrace house in Oldham (OL4 1BJ). It has a recorded floor area of 80 m² (around 861 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (November 2015) shows an F (score 29), near the bottom of the EPC scale. Earlier certificates rated it E (August 2013); the latest reading is one band lower. Between certificates, window efficiency went from Average to Good and hot-water efficiency went from Very Poor to Poor; while wall efficiency dropped from Poor to Very Poor and roof efficiency dropped from Good to Poor. The recommended improvements would lift it to C (score 76), a 3-band jump. The latest certificate is from November 2015, so improvements made since then won't be reflected.

Held since April 2008 — that's 18 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. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £116,000 sits 54.7% above the 2008 sale of £75,000. On a £-per-square-foot basis, the last sale (£87/sq ft) was about 321.4% above the typical sold price in the postcode.