21 Mill Road, Mile End, Colchester, CO4 5LD

21 Mill Road is a four-bedroom semi-detached house in Mile End, Colchester, Colchester (CO4 5LD). It has a recorded floor area of 26 m² (around 280 sq ft), construction records dating it to 1900-1929 and council tax band A. At 26 m² this is the smallest unit on EPC record across the building (26–86 m²). The building's EPC ratings span G to C across 13 units on file. The latest certificate (October 2018) shows an E (score 47), well below the UK norm with real room to improve. Earlier certificates rated it D (November 2016); the latest reading is one band lower. Between certificates, wall efficiency dropped from Poor to Very Poor and hot-water efficiency dropped from Good to Very Poor. The recommended improvements would lift it to C (score 74), a 2-band jump. Main heating runs on electricity.

At 26 m² it sits well below the postcode median (76 m² across 12 EPCs), making it one of the more compact homes locally. Across 1995–2017, sale prices on this property compounded at 27.5% per year. Today's modelled estimate of £374,000 is 29% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£1,036/sq ft) was about 432.5% above the typical sold price in the postcode. 9 years since the last transfer (July 2017).