23b, Barnfield, Hemel Hempstead, HP3 9QH
About 23b
23b is a detached house in Hemel Hempstead (HP3 9QH). It has a recorded floor area of 54 m² (around 581 sq ft), construction records dating it to 1976-1982 and council tax band B. At 54 m² this is the smallest unit on EPC record across the building (54–118 m²). The building's EPC ratings span E to C, with this unit at the top. The latest certificate (October 2024) shows a C (score 74). The rating has held steady at C across 7 certificates since September 2009. Between certificates, wall efficiency dropped from Average to Poor.
At 54 m² it's 27% smaller than the typical home in the postcode (74 m² median across 19 EPCs).
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
Low energy lighting percentage decreased
Heating controls upgraded for better temperature management
Wall insulation upgraded
More low energy lighting installed
Low energy lighting percentage decreased
More low energy lighting installed
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Planning history
23b has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
23b has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£188,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
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.
Median price across the last 5 sales in HP3 9QH: £376,050 (2024–2015).
Nearby sales in HP3 9QH
Versus other Barnfield homes
23b is notably below the street on epc rating.
EPC Rating
74 (C)
Street avg 76 (C)
Floor Area
54 m²
Street avg 55 m²
CO₂ Emissions
1.8 t/year
Street avg 1.6 t/year
Habitable Rooms
2 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Barnfield — bus stop.
Closest school
0.1 km
Belswains Primary School. 27 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
49.7dB

Night-time· 23:00 – 07:00
38.2dB







