Knowe House, Yester Park, Chislehurst, BR7 5DG

Knowe House is a detached house in Chislehurst (BR7 5DG). It has a recorded floor area of 194 m² (around 2088 sq ft), construction records dating it to 1930-1949 and council tax band G. The latest certificate (July 2014) shows an E (score 48), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 78), a 2-band jump. The latest certificate is from July 2014, so improvements made since then won't be reflected.

Held since April 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £1,336,000 sits 80.5% above the 2007 sale of £740,000. On a £-per-square-foot basis, the last sale (£354/sq ft) was about 30.9% below the postcode norm. 3 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. The record references conservation-area consent, which constrain future alterations.