18 The Square, Marlowes, Hemel Hempstead, HP1 1ER

18 The Square is a one-bedroom end-of-terrace house in Hemel Hempstead (HP1 1ER). It has a recorded floor area of 60 m² (around 646 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (October 2021) shows a D (score 58), a step below the typical UK home. The rating has held steady at D across 2 certificates since May 2010. Between certificates, roof efficiency dropped from Poor to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 74). At 60 m² this is the 13th smallest of 16 units on EPC record in the building, where floor areas span 27–63 m². The building's EPC ratings span E to C across 16 units on file. The home occupies a cul-de-sac position.

It hasn't traded since October 1995, a hold of 31 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 60 m² the property is well over the postcode median (29 m² across 15 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £218,000 sits 340.5% above the 1995 sale of £49,485. On a £-per-square-foot basis, the last sale (£77/sq ft) was about 61.4% below the postcode norm.