15 Bryn Derwen Terrace, Talysarn, Caernarfon, LL54 6AS

15 Bryn Derwen Terrace is a two-bedroom mid-terrace house in Talysarn, Caernarfon, Caernarfon (LL54 6AS). It has a recorded floor area of 58 m² (around 624 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (May 2015) shows an F (score 32), near the bottom of the EPC scale. The rating has held steady at F across 2 certificates since December 2014. Between certificates, roof efficiency went from Very Poor to Poor, window efficiency went from Poor to Average and lighting went from Poor to Very Good. The recommended improvements would lift it to B (score 84), a 4-band jump. Main heating runs on electricity. The latest certificate is from May 2015, so improvements made since then won't be reflected. Other recorded features include notable views.

Sale prices here have outpaced England HPI: 7.9% per year against 0% for the wider region. Today's modelled estimate of £130,000 sits 74.5% above the 2016 sale of £74,500. On a £-per-square-foot basis, the last sale (£119/sq ft) was about 32.4% above the typical sold price in the postcode. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Last changed hands 10 years ago, in March 2016.