51a, Lawn Lane, Hemel Hempstead, HP3 9HL
About 51a
51a is an end-of-terrace house in Hemel Hempstead (HP3 9HL). It has a recorded floor area of 42 m² (around 452 sq ft), construction records dating it to 1950-1966 and council tax band B. At 42 m² this is the 5th smallest of 29 units on EPC record in the building, where floor areas span 35–102 m². The building's EPC ratings span G to C, with this unit at the top. The latest certificate (October 2025) shows a C (score 74). The rating has held steady at C across 2 certificates since September 2016. Between certificates, wall efficiency went from Very Poor to Good and lighting went from Poor to Good.
At 42 m² it's 19.2% smaller than the typical home in the postcode (52 m² median across 28 EPCs).
Energy performance
51a's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Cavity wall insulation installed
More low energy lighting installed
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Planning history
51a 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
51a 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 9HL: £335,000 (2021–2016).
Nearby sales in HP3 9HL
Versus other Lawn Lane homes
51a outperforms the street on co₂ emissions by a wide margin.
EPC Rating
74 (C)
Street avg 68 (D)
Floor Area
42 m²
Street avg 47 m²
CO₂ Emissions
1.3 t/year
Street avg 2.1 t/year
Habitable Rooms
3 rooms
Street avg 2 rooms
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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Corner Hall — bus stop.
Closest school
0.6 km
Tudor Primary School. 31 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
56.2dB

Night-time· 23:00 – 07:00
46.7dB







