Flat 3, 16 Castle Street, Christchurch, BH23 1DT

Flat 3 is a one-bedroom detached house in Christchurch (BH23 1DT). It has a recorded floor area of 78 m² (around 840 sq ft), construction records dating it to 1950-1966 and council tax band B. At 78 m² this is the largest unit on EPC record across the building (76–78 m²). The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (43 versus a best of 76). Our model identifies extension potential, subject to local planning policy. The latest certificate (September 2020) shows an E (score 43), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 57).

It lags the bulk of the postcode on energy efficiency (less efficient than 71% of similar EPCs). Today's modelled estimate of £188,000 is 17.5% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£191/sq ft) was about 16.4% below the postcode norm. Sold October 2021 for £160,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.