30 Chestnut Avenue, Gorseinon, Swansea, SA4 4YP

30 Chestnut Avenue is a semi-detached house in Gorseinon, Swansea, Swansea (SA4 4YP). It has a recorded floor area of 91 m² (around 980 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (October 2025) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since August 2011. Between certificates, hot-water efficiency went from Poor to Good; while wall efficiency dropped from Good to Poor and window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 76).

At 91 m² the property is well over the postcode median (65 m² across 19 EPCs), placing it in the larger end of the local stock. Most recent transfer was January 2026 at £155,000 — fresh data. Today's modelled estimate of £185,000 is 19.4% above the 2026 sale price. On a £-per-square-foot basis, the last sale (£158/sq ft) was about 188.5% above the typical sold price in the postcode.