4 Mill Mount House, Mill Mount, York, YO24 1BG

4 Mill Mount House is a three-bedroom detached house in York (YO24 1BG). It has a recorded floor area of 192 m² (around 2067 sq ft), construction records dating it to 1930-1949 and council tax band G. At 192 m² this is the smallest unit on EPC record across the building (192–230 m²). The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (55 versus a best of 71). Other recorded features include a conservatory. The latest certificate (February 2019) shows a D (score 55), a step below the typical UK home. Earlier certificates rated it C (January 2009); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Average; while wall efficiency dropped from Good to Poor and roof efficiency dropped from Good to Very Poor. The recommended improvements would lift it to B (score 81), a 2-band jump.

Untraded for 17 years, with the last transfer in March 2009. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. At 192 m² the property is well over the postcode median (75 m² across 13 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £702,000 sits 73.3% above the 2009 sale of £405,000. On a £-per-square-foot basis, the last sale (£196/sq ft) was about 37.6% below the postcode norm. 2 planning records sit against the property, 1 approved, 1 refused.