36 Neptune Apartments, Phoebe Road, Copper Quarter, Pentrechwyth, Swansea, SA1 7FL

36 Neptune Apartments is a detached house in Pentrechwyth, Swansea, Swansea (SA1 7FL). It has a recorded floor area of 81 m² (around 872 sq ft), construction records dating it to 2007-2011 and council tax band D. At 81 m² this is the largest unit on EPC record across the building (33–81 m²). The building's EPC ratings span E to B, with this unit at the bottom. On EPC score it ranks last in the building (47 versus a best of 86). The latest certificate (July 2024) shows an E (score 47), well below the UK norm with real room to improve. Earlier certificates rated it D (July 2009); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Good. The recommended improvements would lift it to C (score 71), a 2-band jump. Main heating runs on electricity.

At 81 m² the property is well over the postcode median (38 m² across 32 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. A recent sale: £131,500 in February 2025. Today's modelled estimate of £155,000 is 17.9% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£151/sq ft) was about 35.9% below the postcode norm.