Flat 6, 10 Collingwood Villas, Plymouth, PL1 5NZ

Flat 6 is a mid-terrace house in Plymouth (PL1 5NZ). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to before 1900 and council tax band A. At 41 m² this is the 2nd smallest of 7 units on EPC record in the building, where floor areas span 37–55 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (61 versus a best of 75). The latest certificate (August 2016) shows a D (score 61), on the cusp of jumping into the C band. Earlier certificates rated it B (May 2009); the latest reading is 2 bands lower. Between certificates, lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 74). The latest certificate is from August 2016, so improvements made since then won't be reflected.

Untraded for 17 years, with the last transfer in May 2009. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Today's modelled estimate of £117,000 is 11.4% above the 2009 sale price. On a £-per-square-foot basis, the last sale (£238/sq ft) was about 86.9% above the typical sold price in the postcode. At 41 m² it's 25.5% smaller than the typical home in the postcode (55 m² median across 22 EPCs).