6 Aspen Square, Oxford, OX4 7GJ

6 Aspen Square is a detached house in Oxford (OX4 7GJ). It has a recorded floor area of 49 m² (around 527 sq ft), construction records dating it to 1991-1995 and council tax band B. At 49 m² this is the smallest unit on EPC record across the building (49–75 m²). The building's EPC ratings span E to B, with this unit at the bottom. The latest certificate (October 2020) shows an E (score 54), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since September 2010. Between certificates, main heating went from Poor to Average. The recommended improvements would lift it to C (score 70), a 2-band jump. Main heating runs on electricity.

Held since September 2007 — that's 19 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. It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs). Across 1997–2007, sale prices on this property compounded at 9.9% per year. Today's modelled estimate of £204,000 is 39.7% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£277/sq ft) was about 15.4% above the typical sold price in the postcode.