39a, High Street, Hemel Hempstead, HP1 3AA

39a is a mid-terrace house in Hemel Hempstead (HP1 3AA). It has a recorded floor area of 19 m² (around 205 sq ft), construction records dating it to 1900-1929 and council tax band A. At 19 m² this is the smallest unit on EPC record across the building (19–234 m²). The building's EPC ratings span F to C, with this unit at the top. The latest certificate (February 2025) shows a C (score 71). When first surveyed in May 2011 the rating was F, the property has climbed 3 bands since. Between certificates, roof efficiency went from Very Poor to Average, window efficiency went from Very Poor to Good and hot-water efficiency went from Very Poor to Poor. Main heating runs on electricity.

Today's modelled estimate of £120,000 is 86.6% below the 2016 sale of £896,500, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£4,384/sq ft) was about 1419.8% above the typical sold price in the postcode. At 19 m² it sits well below the postcode median (52 m² across 19 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 74% of similar EPCs). 2 planning records sit against the property, 2 approved, 0 refused. Past consents include subdivision, meaningful when judging how the property has evolved. Last sold in September 2016, so it's been off the market for around 10 years.