Chiltern House, Flat 1, 24 King Street, Watford, WD18 0BP

Chiltern House is a property in Watford (WD18 0BP). It has a recorded floor area of 48 m² (around 517 sq ft), construction records dating it to 2012-2021 and council tax band C. At 48 m² this is the 6th smallest of 15 units on EPC record in Chiltern House, where floor areas span 42–104 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (February 2026) shows an E (score 49), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since November 2015. Between certificates, window efficiency dropped from Average to Poor and lighting dropped from Very Good to Good. The recommended improvements would lift it to C (score 73), a 2-band jump. Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition.

Today's modelled estimate of £154,000 is 38.4% below the 2015 sale of £250,000, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). 11 years since the last transfer (December 2015).