Threshing Barn, Pipers Hill, Great Gaddesden, Hemel Hempstead, HP1 3BY

Threshing Barn is a detached house in Great Gaddesden, Hemel Hempstead, Hemel Hempstead (HP1 3BY). It has a recorded floor area of 231 m² (around 2486 sq ft) and construction records dating it to 1983-1990. The latest certificate (June 2026) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2009. Between certificates, lighting went from Very Poor to Very Good; while window efficiency dropped from Average to Poor and main heating dropped from Good to Average. The recommended improvements would push it to C (score 72). Main heating runs on oil. This certificate was lodged in the last six months, so the rating reflects current condition.

Held since June 2011 — that's 15 years off the open market, well above the local norm. At 231 m² the property is well over the postcode median (169 m² across 7 EPCs), placing it in the larger end of the local stock. 4 planning records sit against the property, 1 approved, 0 refused. Past consents include a garage conversion, meaningful when judging how the property has evolved. Across 2002–2011, sale prices on this property compounded at 2.4% per year. Today's modelled estimate of £1,461,000 is 48.3% above the 2011 sale price.