Hardwick House, Flat 24, King Street, Norwich, NR1 1DB

Hardwick House is a detached house in Norwich (NR1 1DB). It has a recorded floor area of 276 m² (around 2971 sq ft) and construction records dating it to before 1900. At 276 m² this is the largest unit on EPC record across Hardwick House (23–276 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 (10 versus a best of 80). The latest certificate (June 2009) shows a G (score 10), near the bottom of the EPC scale. The recommended improvements would push it to F (score 37). Main heating runs on electricity. The latest certificate is from June 2009, so improvements made since then won't be reflected.

At 276 m² the property is well over the postcode median (51 m² across 21 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.