18 Carreg Yr Afon, Godrergraig, Swansea, SA9 2DR

18 Carreg Yr Afon is a one-bedroom semi-detached house in Godrergraig, Swansea, Swansea (SA9 2DR). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to 1983-1990 and council tax band A. At 40 m² this is the 8th smallest of 27 units on EPC record in the building, where floor areas span 37–116 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (March 2025) shows a C (score 75), near the top of the C band. The rating has held steady at C across 2 certificates since March 2015. Between certificates, main heating went from Poor to Average; while roof efficiency dropped from Very Good to Good and window efficiency dropped from Good to Average. Main heating runs on electricity.

It hasn't traded since September 2006, a hold of 20 years that's notably long for the area. Across 1997–2006, sale prices on this property compounded at 4.6% per year. Today's modelled estimate of £97,000 sits 102.1% above the 2006 sale of £48,000. On a £-per-square-foot basis, the last sale (£111/sq ft) was about 41% above the typical sold price in the postcode. At 40 m² it's 28.6% smaller than the typical home in the postcode (56 m² median across 26 EPCs). 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.