1 Dawes Avenue, Isleworth, TW7 7JU

1 Dawes Avenue is a semi-detached house in Isleworth (TW7 7JU). It has a recorded floor area of 122 m² (around 1313 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (January 2026) returns a B (score 83), comfortably above the UK average. When first surveyed in December 2015 the rating was D, the property has climbed 2 bands since. Between certificates, lighting went from Very Poor to Good; while window efficiency dropped from Average to Poor. This certificate was lodged in the last six months, so the rating reflects current condition.

Held since May 2001 — that's 25 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. At 122 m² the property is well over the postcode median (90 m² across 9 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. Today's modelled estimate of £600,000 sits 309.6% above the 2001 sale of £146,500. On a £-per-square-foot basis, the last sale (£112/sq ft) was about 49.7% below the postcode norm. 4 planning records sit against the property, 1 approved, 2 refused. Past consents include an extension, meaningful when judging how the property has evolved.