20 The Chilterns, Gloucester Green, Oxford, OX1 2DF

20 The Chilterns is a one-bedroom mid-terrace house in Oxford (OX1 2DF). It has a recorded floor area of 38 m² (around 409 sq ft), construction records dating it to 1996-2002 and council tax band D. The latest certificate (November 2018) returns a B (score 82), comfortably above the UK average. When first surveyed in November 2008 the rating was C, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Very Poor to Average, lighting went from Very Poor to Very Good and main heating went from Poor to Average. Main heating runs on electricity. At 38 m² this is the 2nd smallest of 48 units on EPC record in the building, where floor areas span 37–85 m². The building's EPC ratings span D to B, with this unit at the top.

Untraded for 22 years, with the last transfer in February 2004. At 38 m² it's 25.5% smaller than the typical home in the postcode (51 m² median across 47 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. Across 1999–2004, sale prices on this property compounded at 10.1% per year. Today's modelled estimate of £326,000 sits 79.1% above the 2004 sale of £182,000. On a £-per-square-foot basis, the last sale (£445/sq ft) was about 33.2% above the typical sold price in the postcode.