3 Abbey Walk, Osney Lane, Oxford, OX1 1NN

3 Abbey Walk is a one-bedroom semi-detached house in Oxford (OX1 1NN). It has a recorded floor area of 31 m² (around 334 sq ft), construction records dating it to 1991-1995 and council tax band C. At 31 m² this is the smallest unit on EPC record across the building (31–39 m²). The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (61 versus a best of 78). The latest certificate (March 2018) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since October 2008. Between certificates, lighting went from Poor to Very Good and main heating went from Poor to Average. The recommended improvements would push it to C (score 72). Main heating runs on electricity.

Held since August 2006 — that's 20 years off the open market, well above the local norm. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1999–2006, sale prices on this property compounded at 10.4% per year. Today's modelled estimate of £263,000 sits 52.5% above the 2006 sale of £172,500. On a £-per-square-foot basis, the last sale (£517/sq ft) was about 113% above the typical sold price in the postcode.