23a, Barrack Street, Colchester, CO1 2LL

23a is a property in Colchester (CO1 2LL). It has a recorded floor area of 37 m² (around 402 sq ft) and construction records dating it to before 1900. The latest certificate (July 2011) shows an F (score 31), near the bottom of the EPC scale. The recommended improvements would push it to E (score 46). Main heating runs on electricity. The latest certificate is from July 2011, so improvements made since then won't be reflected. At 37 m² this is the 2nd smallest of 18 units on EPC record in the building, where floor areas span 18–113 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 (31 versus a best of 74).

At 37 m² it sits well below the postcode median (56 m² across 17 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved.