15a, Douglas Close, Worthing, BN11 5LF

15a is a two-bedroom semi-detached house in Worthing (BN11 5LF). It has a recorded floor area of 56 m² (around 599 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (November 2008) shows an F (score 34), near the bottom of the EPC scale. The recommended improvements would lift it to D (score 63), a 2-band jump. Main heating runs on electricity. The latest certificate is from November 2008, so improvements made since then won't be reflected. At 56 m² this is the 14th smallest of 21 units on EPC record in the building, where floor areas span 42–142 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 (34 versus a best of 76).

Held since December 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1999–2009, sale prices on this property compounded at 7.7% per year. Today's modelled estimate of £182,000 sits 65.5% above the 2009 sale of £110,000. On a £-per-square-foot basis, the last sale (£184/sq ft) was about 18.6% below the postcode norm.