9 Harbour Avenue, Comberton, Cambridge, CB23 7DD

9 Harbour Avenue is a five-bedroom detached house in Comberton, Cambridge, Cambridge (CB23 7DD). It has a recorded floor area of 132 m² (around 1421 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (May 2015) shows a D (score 55), a step below the typical UK home. When first surveyed in May 2009 the rating was F, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Average to Good and lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 71). Main heating runs on oil. The latest certificate is from May 2015, so improvements made since then won't be reflected. The home occupies a corner plot.

At 132 m² the property is well over the postcode median (90 m² across 34 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2016. Past consents include an extension and a porch, meaningful when judging how the property has evolved. Across 2009–2015, sale prices on this property compounded at 7.2% per year. Today's modelled estimate of £731,000 is 39.2% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£370/sq ft) was about 62.8% above the typical sold price in the postcode. On the market in September 2015 and unlisted since — roughly 11 years.