11 Chilgrove Avenue, Blackrod, Bolton, BL6 5TR

11 Chilgrove Avenue is a one-bedroom semi-detached house in Blackrod, Bolton, Bolton (BL6 5TR). It has a recorded floor area of 24 m² (around 258 sq ft), construction records dating it to 1967-1975 and council tax band A. At 24 m² this is the smallest unit on EPC record across the building (24–184 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 (42 versus a best of 75). The latest certificate (November 2019) shows an E (score 42), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since January 2009. Between certificates, wall efficiency dropped from Good to Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 78), a 2-band jump. Main heating runs on electricity.

Untraded for 25 years, with the last transfer in May 2001. 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 £101,000 sits 445.9% above the 2001 sale of £18,500. On a £-per-square-foot basis, the last sale (£72/sq ft) was about 25.4% above the typical sold price in the postcode. At 24 m² it sits well below the postcode median (43 m² across 18 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 78% of similar EPCs).