35a, Bank Street, Chesterfield, S40 1BH

35a is a one-bedroom end-of-terrace house in Chesterfield (S40 1BH). It has a recorded floor area of 36 m² (around 385 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (November 2010) shows a G (score 16), near the bottom of the EPC scale. The recommended improvements would lift it to E (score 45), a 2-band jump. Main heating runs on electricity. The latest certificate is from November 2010, so improvements made since then won't be reflected. At 36 m² this is the 2nd smallest of 24 units on EPC record in the building, where floor areas span 31–92 m². The building's EPC ratings span G to C, with this unit at the bottom. On EPC score it ranks last in the building (16 versus a best of 73). The home occupies a corner plot.

Held since February 1999 — that's 27 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 36 m² it sits well below the postcode median (68 m² across 23 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £122,000 sits 205% above the 1999 sale of £40,000.