63 The Jackson Building, Bennett Crescent, Cowley, Oxford, OX4 2UQ

63 The Jackson Building is a three-bedroom semi-detached house in Cowley, Oxford, Oxford (OX4 2UQ). It has a recorded floor area of 93 m² (around 1001 sq ft), construction records dating it to 1930-1949 and council tax band E. At 93 m² this is the 16th smallest of 18 units on EPC record in the building, where floor areas span 61–104 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (41 versus a best of 79). Our model identifies extension potential, subject to local planning policy. The latest certificate (May 2024) shows an E (score 41), well below the UK norm with real room to improve. Earlier certificates rated it D (August 2013); the latest reading is one band lower. Between certificates, hot-water efficiency went from Average to Good, lighting went from Good to Very Good and main heating went from Average to Good; while wall efficiency dropped from Good to Very Poor and roof efficiency dropped from Good to Very Poor.

At 93 m² the property is well over the postcode median (71 m² across 20 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. It changed hands recently, sold July 2025 for £365,000. Across 1999–2025, sale prices on this property compounded at 4.1% per year. On a £-per-square-foot basis, the last sale (£365/sq ft) was about 48.9% above the typical sold price in the postcode.