26 Commercial Street, Ystradgynlais, Swansea, SA9 1HD

26 Commercial Street is an end-of-terrace house in Ystradgynlais, Swansea, Swansea (SA9 1HD). It has a recorded floor area of 132 m² (around 1420 sq ft) and construction records dating it to 1900-1929. At 132 m² this is the largest unit on EPC record across the building (59–132 m²). The building's EPC ratings span F to C, with this unit at the bottom. On EPC score it ranks last in the building (36 versus a best of 78). The latest certificate (April 2010) shows an F (score 36), near the bottom of the EPC scale. Earlier certificates rated it E (April 2010); the latest reading is one band lower. Between certificates, lighting went from Poor to Average. The recommended improvements would lift it to D (score 58), a 2-band jump. The latest certificate is from April 2010, so improvements made since then won't be reflected.

2 planning records sit against the property, 1 approved, 0 refused, 1 pending. Past consents include an extension, meaningful when judging how the property has evolved. An active application for an extension is awaiting a decision. At 132 m² the property is well over the postcode median (87 m² across 7 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.