28b, Hampstead High Street, Camden, London, NW3 1QA

28b is a detached house in Camden, London, London (NW3 1QA). It has a recorded floor area of 32 m² (around 341 sq ft) and construction records dating it to before 1900. The latest certificate (September 2010) shows an F (score 29), near the bottom of the EPC scale. Earlier certificates rated it C (January 2010); the latest reading is 3 bands lower. Between certificates, hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Very Poor. The recommended improvements would lift it to D (score 66), a 2-band jump. Main heating runs on electricity. The latest certificate is from September 2010, so improvements made since then won't be reflected. At 32 m² this is the 2nd smallest of 8 units on EPC record in the building, where floor areas span 28–116 m². The building's EPC ratings span F to B, with this unit at the bottom. On EPC score it ranks last in the building (29 versus a best of 82).

At 32 m² it sits well below the postcode median (62 m² across 16 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. One historical planning record sits against the property in 2012.