1c, Terrace Gardens, Watford, WD17 1RB

1c is a one-bedroom mid-terrace house in Watford (WD17 1RB). It has a recorded floor area of 57 m² (around 614 sq ft), construction records dating it to 1930-1949 and council tax band B. At 57 m² this is the 5th smallest of 19 units on EPC record in the building, where floor areas span 43–87 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (48 versus a best of 78). The latest certificate (December 2018) shows an E (score 48), well below the UK norm with real room to improve. Earlier certificates rated it C (October 2008); the latest reading is 2 bands lower. Between certificates, lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Average to Poor and main heating dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 76), a 2-band jump. Main heating runs on electricity.

Today's modelled estimate of £411,000 is 25.9% below the 2015 sale of £555,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£905/sq ft) was about 245.8% above the typical sold price in the postcode. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. On the market in July 2015 and unlisted since — roughly 11 years.