1b, Carlingford Road, London, NW3 1RY

1b is an end-of-terrace house in London (NW3 1RY). It has a recorded floor area of 52 m² (around 560 sq ft), construction records dating it to 1900-1929 and council tax band E. At 52 m² this is the 6th smallest of 19 units on EPC record in the building, where floor areas span 47–285 m². The building's EPC ratings span F to C, with this unit at the top. The latest certificate (November 2021) shows a C (score 74). The rating has held steady at C across 5 certificates since November 2009. Between certificates, lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Poor and window efficiency dropped from Good to Poor. The recommended improvements would push it to B (score 81).

Held since June 2001 — that's 25 years off the open market, well above the local norm. Today's modelled estimate of £809,000 sits 179% above the 2001 sale of £290,000. On a £-per-square-foot basis, the last sale (£518/sq ft) was about 34.6% below the postcode norm. At 52 m² it sits well below the postcode median (84 m² across 46 EPCs), making it one of the more compact homes locally.