33 Derwent Avenue, Barnet, EN4 8LU

33 Derwent Avenue is a three-bedroom semi-detached house in Barnet (EN4 8LU). It has a recorded floor area of 102 m² (around 1098 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (October 2014) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in December 2012 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Very Good, window efficiency went from Poor to Good and hot-water efficiency went from Average to Good. The recommended improvements would lift it to B (score 84), a 2-band jump. The latest certificate is from October 2014, so improvements made since then won't be reflected.

At 102 m² the property is well over the postcode median (76 m² across 16 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2013. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. Across 2013–2015, sale prices on this property compounded at 42.9% per year. Today's modelled estimate of £667,000 is 22.4% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£496/sq ft) was about 16.6% above the typical sold price in the postcode. Last sold in January 2015, so it's been off the market for around 11 years.