49a, Williams Road, Bosham, Chichester, PO18 8JR

49a is a one-bedroom detached house in Bosham, Chichester, Chichester (PO18 8JR). It has a recorded floor area of 50 m² (around 538 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (February 2015) shows an F (score 27), near the bottom of the EPC scale. The rating has held steady at F across 2 certificates since August 2013. Between certificates, roof efficiency went from Very Poor to Poor; while hot-water efficiency dropped from Average to Very Poor and lighting dropped from Good to Very Poor. The recommended improvements would lift it to C (score 75), a 3-band jump. Main heating runs on electricity. The latest certificate is from February 2015, so improvements made since then won't be reflected. At 50 m² this is the 4th smallest of 26 units on EPC record in the building, where floor areas span 37–123 m². The building's EPC ratings span F to B, with this unit at the bottom. On EPC score it ranks last in the building (27 versus a best of 83).

At 50 m² it's 16.7% smaller than the typical home in the postcode (60 m² median across 25 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Last sold in September 2013, so it's been off the market for around 13 years. Across the public record there are 4 sales, relatively high churn for a single property. Across 2000–2013, sale prices on this property compounded at 6.5% per year. Today's modelled estimate of £181,000 is 39.2% above the 2013 sale price.