Flat 3, 19 Brocco Bank, Sheffield, S11 8RQ

Flat 3 is a one-bedroom semi-detached house in Sheffield (S11 8RQ). It has a recorded floor area of 67 m² (around 721 sq ft) and construction records dating it to 1967-1975. At 67 m² this is the 4th smallest of 6 units on EPC record in the building, where floor areas span 59–67 m². The building's EPC ratings span D to C, with this unit at the top. On EPC score it ranks first in the building (71 versus a worst of 64). The latest certificate (March 2014) shows a C (score 71). When first surveyed in December 2010 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Poor. The latest certificate is from March 2014, so improvements made since then won't be reflected.

Held since June 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Across 2002–2009, sale prices on this property compounded at 3.4% per year. Today's modelled estimate of £178,000 is 18.7% above the 2009 sale price. On a £-per-square-foot basis, the last sale (£208/sq ft) was about 40.8% above the typical sold price in the postcode.