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Get startedFlat 4 is a semi-detached house in Hemel Hempstead (HP1 1BZ). It has a recorded floor area of 51 m² (around 549 sq ft) and construction records dating it to 1930-1949. At 51 m² this is the 3rd smallest of 4 units on EPC record in the building, where floor areas span 40–70 m². The building's EPC ratings span E to D, with this unit at the top. The latest certificate (September 2015) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in September 2015 the rating was F, the property has climbed 2 bands since. Between certificates, window efficiency went from Good to Very Good; while wall efficiency dropped from Good to Very Poor. Main heating runs on electricity: electricity, unspecified tariff. The latest certificate is from September 2015, so improvements made since then won't be reflected.
At 51 m² it's 18.6% larger than the typical home in the postcode (43 m² median across 7 EPCs).
This certificate is over 10 years old and is no longer valid.Expired 24 Sept 2025
Flat 4 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£227,000
Modelled from EPC, postcode comparables.
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed AI analysis
EPC Rating
63 (D)
Street avg 53 (E)
Floor Area
51 m²
Street avg 45 m²
CO₂ Emissions
2.3 t/year
Street avg 2.4 t/year
Crime
16/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Waterhouse Street — bus stop.

Daytime· 07:00 – 23:00
53.6dB

Changes detected from historical EPC data
Heating system changed
High performance glazing installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Median price across the last 1 sales in HP1 1BZ: £24,000 (2021–2021).
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HP1 1BA
Closest school
0.3 km
South Hill Primary School. 31 schools nearby.
Night-time· 23:00 – 07:00
43.8dB