17 Weavers House, Mannheim Quay, Maritime Quarter, Swansea, SA1 1RU

17 Weavers House is a one-bedroom mid-terrace house in Maritime Quarter, Swansea, Swansea (SA1 1RU). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to before 1900 and council tax band D. At 40 m² this is the 10th smallest of 34 units on EPC record in the building, where floor areas span 24–72 m². The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (March 2025) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since September 2010. Between certificates, hot-water efficiency went from Very Poor to Poor; while wall efficiency dropped from Good to Poor. The recommended improvements would push it to C (score 79). Main heating runs on electricity.

Held since December 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 2000–2009, sale prices on this property compounded at 1.8% per year. Today's modelled estimate of £131,000 sits 74.7% above the 2009 sale of £75,000. On a £-per-square-foot basis, the last sale (£174/sq ft) was about 19.4% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 82% of similar EPCs).