46h, Lucerne Road, London, N5 1TZ

46h is a mid-terrace house in London (N5 1TZ). It has a recorded floor area of 59 m² (around 635 sq ft) and construction records dating it to 1900-1929. At 59 m² this is the 3rd smallest of 16 units on EPC record in the building, where floor areas span 37–163 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (December 2019) shows an E (score 54), well below the UK norm with real room to improve. Earlier certificates rated it C (July 2009); the latest reading is 2 bands lower. Between certificates, window efficiency went from Very Poor to Average; while roof efficiency dropped from Good to Very Poor and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to D (score 67).

Held since March 1999 — that's 27 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. Today's modelled estimate of £498,000 sits 304.9% above the 1999 sale of £123,000. On a £-per-square-foot basis, the last sale (£194/sq ft) was about 61.4% below the postcode norm. At 59 m² it sits well below the postcode median (86 m² across 52 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 87% of similar EPCs).