9a, Basement, Egremont Place, Brighton, BN2 0GA

9a is a mid-terrace house in Brighton (BN2 0GA). It has a recorded floor area of 41 m² (around 441 sq ft) and construction records dating it to before 1900. At 41 m² this is the smallest unit on EPC record across the building (41–46 m²). The building's EPC ratings span E to D, with this unit at the bottom. On EPC score it ranks last in the building (40 versus a best of 63). The latest certificate (February 2016) shows an E (score 40), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 81), a 3-band jump. Main heating runs on electricity. The latest certificate is from February 2016, so improvements made since then won't be reflected.

At 41 m² it sits well below the postcode median (67 m² across 65 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 88% of similar EPCs). Across 2002–2016, sale prices on this property compounded at 4.9% per year. Today's modelled estimate of £620,000 is 11.7% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£1,258/sq ft) was about 374.9% above the typical sold price in the postcode. On the market in July 2016 and unlisted since — roughly 10 years.