57a, Millais Road, Southampton, SO19 2FY

57a is a one-bedroom semi-detached house in Southampton (SO19 2FY). It has a recorded floor area of 42 m² (around 452 sq ft), construction records dating it to 1967-1975 and council tax band A. At 42 m² this is the 2nd smallest of 22 units on EPC record in the building, where floor areas span 40–163 m². The building's EPC ratings span E to B, with this unit at the bottom. The latest certificate (October 2014) shows an E (score 52), well below the UK norm with real room to improve. Earlier certificates rated it C (June 2009); the latest reading is 2 bands lower. Between certificates, wall efficiency dropped from Good to Poor and roof efficiency dropped from Good to Very Poor. The recommended improvements would push it to D (score 66). The latest certificate is from October 2014, so improvements made since then won't be reflected.

At 42 m² it sits well below the postcode median (85 m² across 21 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 76% of similar EPCs). Last sold in March 2016, so it's been off the market for around 10 years. Across the public record there are 4 sales, relatively high churn for a single property. Across 2004–2016, sale prices on this property compounded at -4.8% per year. Today's modelled estimate of £142,000 is 29.7% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£242/sq ft) was about 18% above the typical sold price in the postcode.