4 St Marys Street, Boston Spa, Wetherby, LS23 6BP

4 St Marys Street is a detached house in Boston Spa, Wetherby, Wetherby (LS23 6BP). It has a recorded floor area of 124 m² (around 1335 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (March 2021) shows an E (score 41), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2009); the latest reading is one band lower. Between certificates, roof efficiency went from Average to Good and window efficiency went from Poor to Average; while hot-water efficiency dropped from Good to Poor and lighting dropped from Very Good to Very Poor. The recommended improvements would lift it to B (score 85), a 3-band jump.

Untraded for 17 years, with the last transfer in November 2009. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. At 124 m² the property is well over the postcode median (61 m² across 14 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). Across 1996–2009, sale prices on this property compounded at 7.8% per year. Today's modelled estimate of £428,000 sits 167.5% above the 2009 sale of £160,000. On a £-per-square-foot basis, the last sale (£120/sq ft) was about 58.7% below the postcode norm.