8a, Charles Street, Hemel Hempstead, HP1 1JH

8a is a one-bedroom end-of-terrace house in Hemel Hempstead (HP1 1JH). It has a recorded floor area of 31 m² (around 334 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (May 2021) shows a D (score 62), on the cusp of jumping into the C band. Earlier certificates rated it C (January 2011); the latest reading is one band lower. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Very Poor to Average. At 31 m² this is the 2nd smallest of 29 units on EPC record in the building, where floor areas span 27–185 m². The building's EPC ratings span G to B across 29 units on file.

At 31 m² it sits well below the postcode median (79 m² across 28 EPCs), making it one of the more compact homes locally. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 1999–2012, sale prices on this property compounded at 7.8% per year. On a £-per-square-foot basis, the last sale (£1,289/sq ft) was about 316.1% above the typical sold price in the postcode. Last sold in October 2012, so it's been off the market for around 14 years.