30 Queen Street, Tongwynlais, Cardiff, CF15 7NL

30 Queen Street is a three-bedroom detached house in Tongwynlais, Cardiff, Cardiff (CF15 7NL). It has a recorded floor area of 105 m² (around 1130 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (August 2021) shows an E (score 51), well below the UK norm with real room to improve. When first surveyed in June 2020 the rating was G, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Good, window efficiency went from Very Poor to Good and hot-water efficiency went from Very Poor to Good. The recommended improvements would lift it to B (score 85), a 3-band jump. Period features are noted in the property record.

At 105 m² it's 20.7% larger than the typical home in the postcode (87 m² median across 15 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 87% of similar EPCs). Across 2020–2021, sale prices on this property compounded at 85.2% per year. Today's modelled estimate of £406,000 is 13.6% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£316/sq ft) was about 85.8% above the typical sold price in the postcode. Most recent transfer: September 2021 at £357,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.