121a, St Albans Road, Watford, WD17 1RD

121a is a mid-terrace house in Watford (WD17 1RD). It has a recorded floor area of 68 m² (around 732 sq ft) and construction records dating it to before 1900. At 68 m² this is the 32nd smallest of 42 units on EPC record in the building, where floor areas span 36–122 m². The building's EPC ratings span E to B, with this unit at the bottom. The latest certificate (June 2023) shows an E (score 52), well below the UK norm with real room to improve. Earlier certificates rated it C (September 2010); the latest reading is 2 bands lower. Between certificates, lighting went from Very Poor to Very Good; while roof efficiency dropped from Poor to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would push it to D (score 68).

7 planning records sit against the property, 1 approved, 1 refused. Past consents include tree works, meaningful when judging how the property has evolved. The record references conservation-area consent, which constrain future alterations. At 68 m² it's 25.9% larger than the typical home in the postcode (54 m² median across 41 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs). Across 2001–2024, sale prices on this property compounded at 2.9% per year. On a £-per-square-foot basis, the last sale (£478/sq ft) was about 22.5% above the typical sold price in the postcode. Last sale on file: £350,000 in March 2024.