28b, Chamberlayne Road, London, NW10 3JD

28b is a mid-terrace house in London (NW10 3JD). It has a recorded floor area of 68 m² (around 732 sq ft), construction records dating it to 1900-1929 and council tax band C. At 68 m² this is the 13th smallest of 19 units on EPC record in the building, where floor areas span 13–88 m². The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (March 2021) shows a D (score 63), on the cusp of jumping into the C band. Earlier certificates rated it C (August 2010); the latest reading is one band lower. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Good to Very Good; while window efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 70).

Held since March 1996 — that's 30 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 68 m² the property is well over the postcode median (52 m² across 27 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £455,000 sits 1416.7% above the 1996 sale of £30,000. On a £-per-square-foot basis, the last sale (£41/sq ft) was about 73.5% below the postcode norm. One planning record on file: new windows approved in 2007. Past consents include new windows, meaningful when judging how the property has evolved.