20a, Wethersfield Road, Colchester, CO2 0BB

20a is a one-bedroom property in Colchester (CO2 0BB). It has a recorded floor area of 44 m² (around 478 sq ft), construction records dating it to 1967-1975 and council tax band A. The latest certificate (May 2011) shows an F (score 21), near the bottom of the EPC scale. The recommended improvements would lift it to D (score 60), a 2-band jump. Main heating runs on electricity. The latest certificate is from May 2011, so improvements made since then won't be reflected. At 44 m² this is the 2nd smallest of 18 units on EPC record in the building, where floor areas span 43–78 m². The building's EPC ratings span F to C, with this unit at the bottom. On EPC score it ranks last in the building (21 versus a best of 76). Period features are noted in the property record.

At 44 m² it's 26% smaller than the typical home in the postcode (60 m² median across 17 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count. Across 2003–2013, sale prices on this property compounded at 2.9% per year. Today's modelled estimate of £128,000 sits 93.9% above the 2013 sale of £66,000. Last sold in July 2013, so it's been off the market for around 13 years.