18a, Bexley High Street, Bexley, DA5 1AD

18a is a detached house in Bexley (DA5 1AD). It has a recorded floor area of 27 m² (around 291 sq ft), construction records dating it to 2012 onwards and council tax band B. At 27 m² this is the smallest unit on EPC record across the building (27–142 m²). The building's EPC ratings span E to C across 16 units on file. The latest certificate (May 2022) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since November 2021. Between certificates, wall efficiency went from Very Poor to Very Good and roof efficiency went from Very Poor to Good; while hot-water efficiency dropped from Good to Poor and main heating dropped from Good to Very Poor. The recommended improvements would push it to C (score 77). Main heating runs on electricity.

Untraded for 29 years, with the last transfer in November 1997. 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 £285,000 sits 54.1% above the 1997 sale of £185,000. On a £-per-square-foot basis, the last sale (£637/sq ft) was about 144.3% above the typical sold price in the postcode. At 27 m² it sits well below the postcode median (40 m² across 15 EPCs), making it one of the more compact homes locally.