122a, Flat 12, Charles Street, Leicester, LE1 1LB

122a is a mid-terrace house in Leicester (LE1 1LB). It has a recorded floor area of 41 m² (around 441 sq ft) and construction records dating it to 2007 onwards. The latest certificate (June 2013) returns a B (score 83), comfortably above the UK average. When first surveyed in December 2010 the rating was C, the property has climbed 1 band since. Between certificates, main heating went from Very Poor to Poor; while wall efficiency dropped from Very Good to Good and hot-water efficiency dropped from Very Good to Average. Main heating runs on electricity. The latest certificate is from June 2013, so improvements made since then won't be reflected. At 41 m² this is the 2nd smallest of 23 units on EPC record in 122a, where floor areas span 35–66 m². The building's EPC ratings span E to B, with this unit at the top.

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. At 41 m² it sits well below the postcode median (68 m² across 56 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 73% of similar EPCs). On a £-per-square-foot basis, the last sale (£283/sq ft) was about 78% above the typical sold price in the postcode.