18b, Lewell Avenue, Marston, Oxford, OX3 0RL

18b is a one-bedroom end-of-terrace house in Marston, Oxford, Oxford (OX3 0RL). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1950-1966 and council tax band B. At 45 m² this is the 2nd smallest of 16 units on EPC record in the building, where floor areas span 16–118 m². The building's EPC ratings span E to C, with this unit at the top. The property has solar panels on record, all of which lower running costs and tend to lift resale appeal. The latest certificate (December 2024) shows a C (score 73). The rating has held steady at C across 2 certificates since May 2014. Between certificates, wall efficiency went from Poor to Average; while window efficiency dropped from Very Good to Good.

Held since July 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. Sale prices here have outpaced Oxford HPI: 24.6% per year against 0% for the wider region. Today's modelled estimate of £237,000 is 48.1% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£330/sq ft) was about 22.5% below the postcode norm. At 45 m² it sits well below the postcode median (94 m² across 15 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 73% of similar EPCs). 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count. 2 planning records sit against the property, 0 approved, 1 refused.