23 Chilworth Gate, Silverfield, Broxbourne, EN10 6NN

23 Chilworth Gate is a one-bedroom semi-detached house in Broxbourne (EN10 6NN). It has a recorded floor area of 43 m² (around 463 sq ft), construction records dating it to 1983-1990 and council tax band C. At 43 m² this is the smallest unit on EPC record across the building (43–80 m²). The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (78 versus a worst of 42). The latest certificate (September 2023) shows a C (score 78), near the top of the C band. The rating has held steady at C across 2 certificates since October 2013. Between certificates, wall efficiency went from Average to Good, window efficiency went from Average to Good and lighting went from Poor to Very Good.

Untraded for 31 years, with the last transfer in February 1995. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £202,000 sits 375.3% above the 1995 sale of £42,500. On a £-per-square-foot basis, the last sale (£92/sq ft) was about 60.6% below the postcode norm. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.