5 William Street, Ystradgynlais, Swansea, SA9 1AT

5 William Street is a three-bedroom mid-terrace house in Ystradgynlais, Swansea, Swansea (SA9 1AT). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (November 2024) shows an E (score 52), well below the UK norm with real room to improve. The rating has held steady at E across 3 certificates since November 2011. Between certificates, lighting went from Very Poor to Very Good. The recommended improvements would lift it to B (score 81), a 3-band jump.

Held since June 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. It lags the bulk of the postcode on energy efficiency (less efficient than 77% of similar EPCs). Across 1999–2007, sale prices on this property compounded at 17% per year. Today's modelled estimate of £152,000 is 21.6% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£132/sq ft) was about 43.7% above the typical sold price in the postcode.