4 Horn Lane Flats, Horn Lane, Plymouth, PL9 9BS

4 Horn Lane Flats is a two-bedroom semi-detached house in Plymouth (PL9 9BS). It has a recorded floor area of 57 m² (around 618 sq ft), construction records dating it to 1930-1949 and council tax band A. At 57 m² this is the 7th smallest of 12 units on EPC record in the building, where floor areas span 33–63 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 (44 versus a best of 78). The latest certificate (September 2009) shows an E (score 44), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 71), a 2-band jump. Main heating runs on electricity. The latest certificate is from September 2009, so improvements made since then won't be reflected.

It hasn't traded since October 1999, a hold of 27 years that's notably long for the area. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1996–1999, sale prices on this property compounded at 18.3% per year. Today's modelled estimate of £127,000 sits 217.5% above the 1999 sale of £40,000. On a £-per-square-foot basis, the last sale (£65/sq ft) was about 46.6% below the postcode norm.