11 Gade Place, Cotterells, Hemel Hempstead, HP1 1AQ

11 Gade Place is a one-bedroom mid-terrace house in Hemel Hempstead (HP1 1AQ). It has a recorded floor area of 43 m² (around 463 sq ft), construction records dating it to 2007 onwards and council tax band C. At 43 m² this is the smallest unit on EPC record across the building (43–60 m²). The building's EPC ratings span C to B, with this unit at the top. On EPC score it ranks first in the building (82 versus a worst of 76). The latest certificate (January 2020) returns a B (score 82), comfortably above the UK average. When first surveyed in December 2009 the rating was C, the property has climbed 1 band since. Between certificates, lighting went from Average to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good.

At 43 m² it's 16.7% smaller than the typical home in the postcode (52 m² median across 24 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. Across 2013–2018, sale prices on this property compounded at 8.7% per year. Today's modelled estimate of £139,000 sits 80.5% above the 2018 sale of £77,000. On a £-per-square-foot basis, the last sale (£166/sq ft) was about 111.2% above the typical sold price in the postcode. Last sold in February 2018, so it's been off the market for around 8 years.