Flat 7, 17 Knowsley Road, Southport, PR9 0BN

Flat 7 is a semi-detached house in Southport (PR9 0BN). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 1900-1929 and council tax band A. At 41 m² this is the smallest unit on EPC record across the building (41–56 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 (47 versus a best of 75). The latest certificate (September 2015) shows an E (score 47), well below the UK norm with real room to improve. Earlier certificates rated it C (February 2009); the latest reading is 2 bands lower. Between certificates, wall efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would push it to D (score 55). The latest certificate is from September 2015, so improvements made since then won't be reflected.

Across 2008–2021, sale prices on this property compounded at -4.5% per year. Today's modelled estimate of £116,000 sits 78.5% above the 2021 sale of £65,000. On a £-per-square-foot basis, the last sale (£147/sq ft) was about 30.9% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 71% of similar EPCs). Last sale on file: £65,000 in May 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.