1b, Oak Tree Drive, Barnet, London, N20 8QJ

1b is a semi-detached house in Barnet, London, London (N20 8QJ). It has a recorded floor area of 111 m² (around 1195 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (September 2023) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 4 certificates since July 2012. Between certificates, window efficiency went from Poor to Good and lighting went from Very Poor to Very Good; while roof efficiency dropped from Good to Very Poor. The recommended improvements would push it to C (score 79).

Held since November 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. Today's modelled estimate of £907,000 sits 485.2% above the 1996 sale of £155,000. On a £-per-square-foot basis, the last sale (£130/sq ft) was about 75.2% below the postcode norm.