17a, Norfolk Square, Brighton, BN1 2PB

17a is a one-bedroom semi-detached house in Brighton (BN1 2PB). It has a recorded floor area of 61 m² (around 657 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (March 2020) shows a D (score 56), a step below the typical UK home. The rating has held steady at D across 2 certificates since August 2009. Between certificates, window efficiency went from Very Poor to Poor, hot-water efficiency went from Very Poor to Poor and lighting went from Good to Very Good; while main heating dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 83), a 2-band jump. Main heating runs on electricity. At 61 m² this is the 40th smallest of 51 units on EPC record in the building, where floor areas span 13–166 m². The building's EPC ratings span F to C across 51 units on file.

At 61 m² it's 24.5% larger than the typical home in the postcode (49 m² median across 50 EPCs). Across 2006–2021, sale prices on this property compounded at 3.9% per year. On a £-per-square-foot basis, the last sale (£419/sq ft) was about 28.9% above the typical sold price in the postcode. Last sale on file: £275,000 in December 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.