33a, Spring Bank, Grimsby, DN34 4BQ

33a is a detached house in Grimsby (DN34 4BQ). It has a recorded floor area of 45 m² (around 482 sq ft) and construction records dating it to 1930-1949. At 45 m² this is the 2nd smallest of 17 units on EPC record in the building, where floor areas span 44–71 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 (50 versus a best of 72). The latest certificate (October 2008) shows an E (score 50), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 76), a 2-band jump. The latest certificate is from October 2008, so improvements made since then won't be reflected.

It hasn't traded since August 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 45 m² it sits well below the postcode median (66 m² across 16 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 £107,000 sits 114% above the 2007 sale of £50,000.