Burlington House, 12, Goral Mead, Rickmansworth, WD3 1BP

Burlington House is a two-bedroom detached house in Rickmansworth (WD3 1BP). It has a recorded floor area of 76 m² (around 817 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (February 2011) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 69). The latest certificate is from February 2011, so improvements made since then won't be reflected. Other recorded features include a basement. Period features are noted in the property record.

Held since March 1999 — that's 27 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. Today's modelled estimate of £313,000 sits 279.4% above the 1999 sale of £82,500. On a £-per-square-foot basis, the last sale (£101/sq ft) was about 59.6% below the postcode norm.