4a, Crossfield Road, Camden, London, NW3 4NS

4a is a two-bedroom mid-terrace house in Camden, London, London (NW3 4NS). It has a recorded floor area of 71 m² (around 764 sq ft) and construction records dating it to 1900-1929. At 71 m² this is the 7th smallest of 23 units on EPC record in the building, where floor areas span 54–225 m². The building's EPC ratings span D to C, with this unit at the bottom. Period features are noted in the property record. The latest certificate (September 2019) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since November 2009. Between certificates, window efficiency went from Very Poor to Poor and lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 75).

Held since March 2002 — that's 24 years off the open market, well above the local norm. Today's modelled estimate of £768,000 sits 164.8% above the 2002 sale of £290,000. On a £-per-square-foot basis, the last sale (£379/sq ft) was about 19% below the postcode norm.