11a, Greenbrook Avenue, Barnet, EN4 0LS

11a is a five-bedroom detached house in Barnet (EN4 0LS). It has a recorded floor area of 235 m² (around 2530 sq ft), construction records dating it to 1983-1990 and council tax band H. The latest certificate (December 2024) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2010. Between certificates, lighting went from Poor to Very Good. The recommended improvements would push it to C (score 73). It has already been extended once and our model flags further extension potential, a sign of buyer flexibility.

Held since May 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 £1,639,000 sits 221.4% above the 1999 sale of £510,000. On a £-per-square-foot basis, the last sale (£202/sq ft) was about 44.8% below the postcode norm. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include a garage conversion, meaningful when judging how the property has evolved. At 235 m² it's 17.8% smaller than the typical home in the postcode (286 m² median across 13 EPCs).