17a, Brunswick Road, Kingston Upon Thames, KT2 6SB

17a is a one-bedroom semi-detached house in Kingston Upon Thames (KT2 6SB). It has a recorded floor area of 60 m² (around 646 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (March 2021) shows a D (score 55), a step below the typical UK home. Earlier certificates rated it C (April 2009); the latest reading is one band lower. Between certificates, hot-water efficiency went from Average to Good, lighting went from Very Poor to Very Good and main heating went from Average to Good; while wall efficiency dropped from Good to Very Poor and window efficiency dropped from Poor to Very Poor. At 60 m² this is the 32nd smallest of 45 units on EPC record in the building, where floor areas span 31–306 m². The building's EPC ratings span E to B across 45 units on file.

It hasn't traded since September 2004, a hold of 22 years that's notably long for the area. At 60 m² the property is well over the postcode median (45 m² across 44 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £330,000 sits 106.8% above the 2004 sale of £159,600. On a £-per-square-foot basis, the last sale (£247/sq ft) was about 27.8% below the postcode norm. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include tree works, meaningful when judging how the property has evolved.