Allerton House, Flat 1, 107 Waratah Drive, Chislehurst, BR7 5FS

Allerton House is a two-bedroom semi-detached house in Chislehurst (BR7 5FS). It has a recorded floor area of 63 m² (around 678 sq ft) and construction records dating it to 2012 onwards. At 63 m² this is the smallest unit on EPC record across Allerton House (63–74 m²). The building's EPC ratings span C to B, with this unit at the bottom. On EPC score it ranks last in the building (78 versus a best of 83). The property has solar panels on record, all of which lower running costs and tend to lift resale appeal. The latest certificate (January 2025) shows a C (score 78), near the top of the C band. Earlier certificates rated it B (February 2014); the latest reading is one band lower. Between certificates, wall efficiency went from Good to Very Good; while window efficiency dropped from Very Good to Good and lighting dropped from Very Good to Good.

It lags the bulk of the postcode on energy efficiency (less efficient than 81% of similar EPCs). Across 2014–2021, sale prices on this property compounded at 1.6% per year. On a £-per-square-foot basis, the last sale (£512/sq ft) was about 21.9% above the typical sold price in the postcode. 3 planning records sit against the property, 0 approved, 1 refused. Last sale on file: £347,500 in May 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.