31 Royal Sovereign Apartments, Phoebe Road, Copper Quarter, Pentrechwyth, Swansea, SA1 7FH

31 Royal Sovereign Apartments is a mid-terrace house in Pentrechwyth, Swansea, Swansea (SA1 7FH). It has a recorded floor area of 80 m² (around 861 sq ft), construction records dating it to 2003-2006 and council tax band D. At 80 m² this is the largest unit on EPC record across the building (33–80 m²). The building's EPC ratings span D to B across 37 units on file. The latest certificate (November 2020) shows a C (score 69), just inside the C band. The rating has held steady at C across 3 certificates since April 2009. Between certificates, lighting went from Average to Very Good; while wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Good. Main heating runs on electricity.

At 80 m² the property is well over the postcode median (38 m² across 31 EPCs), placing it in the larger end of the local stock. On a £-per-square-foot basis, the last sale (£163/sq ft) was about 26.2% below the postcode norm. Most recent transfer: March 2023 at £140,000.