13 Heol Tredeg, Upper Cwmtwrch, Swansea, SA9 2XD

13 Heol Tredeg is an end-of-terrace house in Upper Cwmtwrch, Swansea, Swansea (SA9 2XD). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (August 2017) shows a G (score 14), near the bottom of the EPC scale. The recommended improvements would lift it to D (score 68), a 3-band jump. Main heating runs on anthracite.

At 65 m² it sits well below the postcode median (102 m² across 17 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. One planning record on file: an extension approved in 2019. Past consents include an extension, meaningful when judging how the property has evolved. Across 2019–2021, sale prices on this property compounded at 15.1% per year. Today's modelled estimate of £163,000 is 12.4% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£207/sq ft) was about 99.2% above the typical sold price in the postcode. Most recent transfer: November 2021 at £145,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.