11 High Ridge Road, Hemel Hempstead, HP3 0AG

11 High Ridge Road is a four-bedroom detached house in Hemel Hempstead (HP3 0AG). It has a recorded floor area of 137 m² (around 1475 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (March 2015) shows an E (score 52), well below the UK norm with real room to improve. When first surveyed in April 2009 the rating was F, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Good, hot-water efficiency went from Poor to Good and main heating went from Average to Good; while wall efficiency dropped from Poor to Very Poor and roof efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 69), a 2-band jump. The latest certificate is from March 2015, so improvements made since then won't be reflected.

At 137 m² the property is well over the postcode median (101 m² across 26 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2009. Past consents include an extension, a loft conversion and a porch, meaningful when judging how the property has evolved. Across 2009–2015, sale prices on this property compounded at 15% per year. Today's modelled estimate of £661,000 is 21.3% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£370/sq ft) was about 21.9% above the typical sold price in the postcode. Last changed hands 11 years ago, in July 2015.