17b, Harrier Mews, Greenwich, London, SE28 0DQ

17b is an end-of-terrace house in Greenwich, London, London (SE28 0DQ). It has a recorded floor area of 29 m² (around 312 sq ft), construction records dating it to 1983-1990 and council tax band A. At 29 m² this is the 2nd smallest of 51 units on EPC record in the building, where floor areas span 20–108 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (March 2022) shows a C (score 72). The rating has held steady at C across 2 certificates since March 2009. Between certificates, window efficiency dropped from Good to Average and hot-water efficiency dropped from Average to Very Poor. Main heating runs on electricity.

Untraded for 26 years, with the last transfer in September 2000. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £138,000 sits 331.3% above the 2000 sale of £32,000. On a £-per-square-foot basis, the last sale (£103/sq ft) was about 52.6% below the postcode norm. At 29 m² it sits well below the postcode median (51 m² across 50 EPCs), making it one of the more compact homes locally.