9 Cassiobury Drive, Watford, WD17 3AA

9 Cassiobury Drive is a five-bedroom detached house in Watford (WD17 3AA). It has a recorded floor area of 257 m² (around 2766 sq ft), construction records dating it to 1900-1929 and council tax band G. The latest certificate (December 2015) shows a C (score 78), near the top of the C band. When first surveyed in September 2009 the rating was E, the property has climbed 2 bands since. Between certificates, lighting went from Average to Very Good; while roof efficiency dropped from Average to Very Poor and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 90). The latest certificate is from December 2015, so improvements made since then won't be reflected. Other recorded features include a conservatory.

Held since January 2010 — that's 16 years off the open market, well above the local norm. At 257 m² the property is well over the postcode median (151 m² across 16 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 75% of similar EPCs). Across 2001–2010, sale prices on this property compounded at 5% per year. Today's modelled estimate of £1,520,000 sits 111.7% above the 2010 sale of £718,000. On a £-per-square-foot basis, the last sale (£260/sq ft) was about 24.4% below the postcode norm. One historical planning record sits against the property in 2012.