Basement Flat, 89 Alexandra Road, Gorseinon, Swansea, SA4 4NU

Basement Flat is a one-bedroom semi-detached house in Gorseinon, Swansea, Swansea (SA4 4NU). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (October 2021) shows an F (score 21), near the bottom of the EPC scale. Earlier certificates rated it D (September 2009); the latest reading is 2 bands lower. Between certificates, lighting went from Good to Very Good; while hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Very Poor. The recommended improvements would push it to E (score 53). Main heating runs on electricity.

Held since February 2004 — that's 22 years off the open market, well above the local norm. At 55 m² it sits well below the postcode median (100 m² across 25 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. On a £-per-square-foot basis, the last sale (£198/sq ft) was about 121.3% above the typical sold price in the postcode.