115 K D Tower, Cotterells, Hemel Hempstead, HP1 1AT

115 K D Tower is a mid-terrace house in Hemel Hempstead (HP1 1AT). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 2007-2011 and council tax band D. The latest certificate (September 2025) shows a C (score 75), near the top of the C band. When first surveyed in September 2010 the rating was E, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Very Poor to Average, lighting went from Average to Good and main heating went from Very Poor to Poor; while wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Average. The recommended improvements would push it to B (score 83). Main heating runs on electricity. At 65 m² this is the 57th smallest of 84 units on EPC record in the building, where floor areas span 42–82 m². The building's EPC ratings span E to B across 84 units on file.

Held since December 2010 — that's 15 years off the open market, well above the local norm. At 65 m² it's 22.6% larger than the typical home in the postcode (53 m² median across 83 EPCs). Today's modelled estimate of £257,000 is 24.9% above the 2010 sale price.