18 Cork House, Mannheim Quay, Maritime Quarter, Swansea, SA1 1RT

18 Cork House is a mid-terrace house in Maritime Quarter, Swansea, Swansea (SA1 1RT). It has a recorded floor area of 76 m² (around 818 sq ft), construction records dating it to 1983-1990 and council tax band E. The latest certificate (December 2020) returns a B (score 82), comfortably above the UK average. When first surveyed in October 2008 the rating was C, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good and main heating went from Poor to Average. Main heating runs on electricity. At 76 m² this is the 38th smallest of 41 units on EPC record in the building, where floor areas span 39–120 m². The building's EPC ratings span E to B, with this unit at the top.

Held since January 2000 — that's 27 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £170,000 sits 111.8% above the 2000 sale of £80,250. On a £-per-square-foot basis, the last sale (£98/sq ft) was about 45.3% below the postcode norm. At 76 m² it's 21.6% larger than the typical home in the postcode (63 m² median across 40 EPCs). Its energy rating outperforms most of the postcode (better than 88% of similar EPCs).