4 Bonchester Close, Chislehurst, BR7 5HS

4 Bonchester Close is a three-bedroom semi-detached house in Chislehurst (BR7 5HS). It has a recorded floor area of 112 m² (around 1206 sq ft), construction records dating it to before 1900 and council tax band E. At 112 m² this is the 2nd smallest of 5 units on EPC record in the building, where floor areas span 88–307 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (49 versus a best of 72). The latest certificate (June 2022) shows an E (score 49), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since June 2012. Between certificates, lighting went from Very Poor to Good. The recommended improvements would lift it to C (score 73), a 2-band jump.

At 112 m² it's 21.7% smaller than the typical home in the postcode (143 m² median across 4 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Last sale on file: £838,000 in December 2022. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. 2 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. Across 2003–2022, sale prices on this property compounded at 4.7% per year. On a £-per-square-foot basis, the last sale (£695/sq ft) was about 139.6% above the typical sold price in the postcode.