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

23 The Chilterns is a one-bedroom end-of-terrace house in Oxford (OX1 2DF). It has a recorded floor area of 46 m² (around 495 sq ft), construction records dating it to 1983-1990 and council tax band E. At 46 m² this is the 16th smallest of 49 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 bottom. Other recorded features include a balcony. The latest certificate (July 2023) shows a D (score 60), on the cusp of jumping into the C band. Earlier certificates rated it C (August 2009); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while main heating dropped from Poor to Very Poor. The recommended improvements would push it to C (score 76). Main heating runs on electricity.

It hasn't traded since February 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 2002–2007, sale prices on this property compounded at 6.4% per year. Today's modelled estimate of £357,000 sits 66% above the 2007 sale of £215,000. On a £-per-square-foot basis, the last sale (£434/sq ft) was about 29.5% above the typical sold price in the postcode. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs).