25a, St Helens Avenue, Swansea, SA1 4ND

25a is a mid-terrace house in Swansea (SA1 4ND). It has a recorded floor area of 76 m² (around 818 sq ft), construction records dating it to 1900-1929 and council tax band E. At 76 m² this is the smallest unit on EPC record across the building (76–173 m²). The building's EPC ratings span G to C across 29 units on file. The latest certificate (November 2021) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since August 2011. Between certificates, lighting went from Good to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 75).

It hasn't traded since August 2002, a hold of 24 years that's notably long for the area. Today's modelled estimate of £188,000 sits 103.2% above the 2002 sale of £92,500. On a £-per-square-foot basis, the last sale (£113/sq ft) was about 24.7% above the typical sold price in the postcode. At 76 m² it sits well below the postcode median (154 m² across 28 EPCs), making it one of the more compact homes locally.