K D Tower, 4 The Terrace, Cotterells, Hemel Hempstead, HP1 1AZ

K D Tower is a one-bedroom mid-terrace house in Hemel Hempstead (HP1 1AZ). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 2007-2011 and council tax band C. The latest certificate (August 2022) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in September 2010 the rating was E, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Very Poor to Poor and lighting went from Average to Very Good; while wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Good. The recommended improvements would push it to C (score 78). Main heating runs on electricity. At 41 m² this is the 2nd smallest of 14 units on EPC record in K D Tower, where floor areas span 38–87 m². The building's EPC ratings span F to B across 14 units on file.

At 41 m² it sits well below the postcode median (63 m² across 13 EPCs), making it one of the more compact homes locally. Across 2014–2019, sale prices on this property compounded at 1.9% per year. On a £-per-square-foot basis, the last sale (£428/sq ft) was about 26.3% above the typical sold price in the postcode. Last sale on file: £189,000 in December 2019.