Flat 4, 46 Chalk Hill, Watford, WD19 4BX

Flat 4 is a one-bedroom semi-detached house in Watford (WD19 4BX). It has a recorded floor area of 37 m² (around 398 sq ft), construction records dating it to 1900-1929 and council tax band B. Tenure is freehold. At 37 m² this is the smallest unit on EPC record across the building (37–52 m²). The building's EPC ratings span D to C, with this unit at the top. Our model identifies extension potential, subject to local planning policy. The latest certificate (September 2025) shows a C (score 74). The rating has held steady at C across 2 certificates since March 2014. Between certificates, hot-water efficiency went from Average to Good; while wall efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Average.

Today's modelled estimate of £251,000 sits 61.9% above the 2014 sale of £155,000. On a £-per-square-foot basis, the last sale (£389/sq ft) was about 57.9% above the typical sold price in the postcode. At 37 m² it sits well below the postcode median (60 m² across 28 EPCs), making it one of the more compact homes locally. Last sold in August 2014, so it's been off the market for around 12 years.