11 Grange Avenue, Barnet, London, N20 8AA

11 Grange Avenue is a six-bedroom detached house in Barnet, London, London (N20 8AA). It has a recorded floor area of 540 m² (around 5813 sq ft), construction records dating it to 1930-1949 and council tax band H. The latest certificate (September 2022) shows a C (score 72). When first surveyed in September 2011 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good; while roof efficiency dropped from Good to Average.

Across 2018–2022, sale prices on this property compounded at 14% per year. Today's modelled estimate of £4,198,000 is 10.7% below the 2022 sale of £4,700,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£809/sq ft) was about 59.7% above the typical sold price in the postcode. 18 planning records sit against the property, 4 approved, 1 refused. Past consents include tree works, an extension and a porch, meaningful when judging how the property has evolved. At 540 m² it's 15.6% larger than the typical home in the postcode (467 m² median across 9 EPCs). Sold November 2022 for £4,700,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.