15 Blackweir Terrace, Cardiff, CF10 3EQ

15 Blackweir Terrace is an end-of-terrace house in Cardiff (CF10 3EQ). It has a recorded floor area of 169 m² (around 1819 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (October 2022) shows a D (score 64), on the cusp of jumping into the C band. Earlier certificates rated it C (July 2012); the latest reading is one band lower. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Good to Very Good and lighting went from Good to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 84), a 2-band jump.

Across 1999–2022, sale prices on this property compounded at 10.3% per year. Today's modelled estimate of £245,000 is 44.9% below the 2022 sale of £445,000, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£245/sq ft) was about 72.2% above the typical sold price in the postcode. At 169 m² the property is well over the postcode median (80 m² across 34 EPCs), placing it in the larger end of the local stock. Last sale on file: £445,000 in October 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.