Flat, 10 St Johns Court, Grantham, NG31 6DN

Flat is a one-bedroom detached house in Grantham (NG31 6DN). It has a recorded floor area of 38 m² (around 409 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (June 2023) shows an E (score 53), well below the UK norm with real room to improve. When first surveyed in March 2009 the rating was G, the property has climbed 2 bands since. Between certificates, lighting dropped from Average to Poor. The recommended improvements would lift it to C (score 76), a 2-band jump. Main heating runs on electricity. At 38 m² this is the 2nd smallest of 11 units on EPC record in the building, where floor areas span 34–65 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 (53 versus a best of 78).

Held since June 1997 — that's 29 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 38 m² it's 19.1% smaller than the typical home in the postcode (47 m² median across 10 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £105,000 sits 599.8% above the 1997 sale of £15,005. On a £-per-square-foot basis, the last sale (£37/sq ft) was about 58.2% below the postcode norm.