5 Gelli Grafog, Port Tennant, Swansea, SA1 8NZ

5 Gelli Grafog is a three-bedroom mid-terrace house in Port Tennant, Swansea, Swansea (SA1 8NZ). It has a recorded floor area of 101 m² (around 1087 sq ft), construction records dating it to 2007 onwards and council tax band D. The latest certificate (July 2020) shows a C (score 79), near the top of the C band. Earlier certificates rated it B (June 2009); the latest reading is one band lower. Between certificates, lighting went from Average to Very Good; while window efficiency dropped from Very Good to Good and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 90).

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. Today's modelled estimate of £180,000 sits 51.3% above the 2009 sale of £118,995. On a £-per-square-foot basis, the last sale (£109/sq ft) was about 27% below the postcode norm. At 101 m² it's 17.6% larger than the typical home in the postcode (86 m² median across 9 EPCs).