90a, Ditton Road, Surbiton, KT6 6RH

90a is a five-bedroom detached house in Surbiton (KT6 6RH). It has a recorded floor area of 211 m² (around 2271 sq ft), construction records dating it to 1967-1975 and council tax band G. The latest certificate (November 2016) shows a D (score 57), a step below the typical UK home. Earlier certificates rated it C (February 2009); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Poor and roof efficiency dropped from Good to Average. The recommended improvements would push it to C (score 78).

It hasn't traded since April 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 211 m² the property is well over the postcode median (94 m² across 38 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £1,601,000 sits 73% above the 2007 sale of £925,500. On a £-per-square-foot basis, the last sale (£407/sq ft) was about 23.5% above the typical sold price in the postcode. 19 planning records sit against the property, 7 approved, 10 refused. Past consents include tree works, an extension and a loft conversion, meaningful when judging how the property has evolved. The record references conservation-area consent, which constrain future alterations.