3 Anvil House, North End, Keelby, Grimsby, DN41 8HZ

3 Anvil House is a semi-detached house in Keelby, Grimsby, Grimsby (DN41 8HZ). It has a recorded floor area of 66 m² (around 710 sq ft), construction records dating it to 1983-1990 and council tax band A. At 66 m² this is the largest unit on EPC record across the building (58–66 m²). The building's EPC ratings span E to D, with this unit at the top. On EPC score it ranks first in the building (66 versus a worst of 43). The latest certificate (July 2017) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since November 2008. Between certificates, window efficiency went from Average to Good, lighting went from Average to Very Good and main heating went from Poor to Average. The recommended improvements would push it to C (score 74). Main heating runs on electricity.

Held since September 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £96,000 is 12.9% above the 2007 sale price.