1 Catherine Close, Hemel Hempstead, HP2 7LN

1 Catherine Close is a three-bedroom detached house in Hemel Hempstead (HP2 7LN). It has a recorded floor area of 77 m² (around 829 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (July 2013) shows a D (score 61), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 85), a 2-band jump. The latest certificate is from July 2013, so improvements made since then won't be reflected. The home occupies a corner plot.

Held since June 2006 — that's 20 years off the open market, well above the local norm. Today's modelled estimate of £416,000 sits 89.1% above the 2006 sale of £220,000. On a £-per-square-foot basis, the last sale (£265/sq ft) was about 22.6% above the typical sold price in the postcode. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. At 77 m² it's 15.4% smaller than the typical home in the postcode (91 m² median across 9 EPCs).