Berdonna Court, Flat 7, 2 Copper Beech Drive, Portsmouth, PO6 1AZ

Berdonna Court is a one-bedroom end-of-terrace house in Portsmouth (PO6 1AZ). It has a recorded floor area of 61 m² (around 657 sq ft) and construction records dating it to 1967-1975. The latest certificate (February 2014) shows an F (score 36), near the bottom of the EPC scale. Earlier certificates rated it E (April 2009); the latest reading is one band lower. Between certificates, window efficiency went from Poor to Average and main heating went from Poor to Average; while wall efficiency dropped from Average to Poor and roof efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to D (score 62), a 2-band jump. Main heating runs on electricity. The latest certificate is from February 2014, so improvements made since then won't be reflected. At 61 m² this is the 2nd smallest of 8 units on EPC record in Berdonna Court, where floor areas span 52–80 m². The building's EPC ratings span F to C, with this unit at the bottom. On EPC score it ranks last in the building (36 versus a best of 76). Other recorded features include a balcony and notable views. The home occupies a cul-de-sac position.

Today's modelled estimate of £142,000 sits 77.5% above the 2013 sale of £80,000. On a £-per-square-foot basis, the last sale (£122/sq ft) was about 15.5% below the postcode norm. At 61 m² it sits well below the postcode median (88 m² across 47 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 87% of similar EPCs). On the market in April 2013 and unlisted since — roughly 13 years.