21a, Marlowes, Hemel Hempstead, HP1 1LA
About 21a
21a is a mid-terrace house in Hemel Hempstead (HP1 1LA). It has a recorded floor area of 113 m² (around 1216 sq ft) and construction records dating it to 1900-1929. The latest certificate (August 2021) shows a D (score 56), a step below the typical UK home. When first surveyed in December 2008 the rating was F, the property has climbed 2 bands since. Between certificates, lighting went from Average to Good and main heating went from Average to Good. The recommended improvements would push it to C (score 76). At 113 m² this is the 14th smallest of 15 units on EPC record in the building, where floor areas span 34–113 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (56 versus a best of 74).
At 113 m² the property is well over the postcode median (45 m² across 14 EPCs), placing it in the larger end of the local stock.
Everything you need to know about 21a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
21a's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Changed to a more efficient fuel source
Hot water system upgraded
Window efficiency improved
Wall insulation improved
Upgraded to gas central heating
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
21a 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
21a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£386,000
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 HP1 1LA: £355,000 (2024–2018).
Nearby sales in HP1 1LA
5a, Marlowes, Hemel Hempstead, HP1 1LA
Sold Jul 2024
£420,00033a, Marlowes, Hemel Hempstead, HP1 1LA
Sold Mar 2021
£400,000Flat C, 33 Marlowes, Hemel Hempstead, HP1 1LA
Sold Mar 2020
£200,0009 Marlowes, Hemel Hempstead, HP1 1LA
Sold Sept 2019
£15,0007a, Marlowes, Hemel Hempstead, HP1 1LA
Sold Jan 2018
£355,000
Versus other Marlowes homes
21a is notably below the street on epc rating.
EPC Rating
56 (D)
Street avg 69 (D)
Floor Area
113 m²
Street avg 51 m²
CO₂ Emissions
6.3 t/year
Street avg 2.3 t/year
Habitable Rooms
4 rooms
Street avg 2 rooms
Everything you need to know about 21a
The true value, the hidden risks and the full sale history, in one report.
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The neighbourhood at a glance
Crime
16/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
West Herts College — bus stop.
Closest school
0.4 km
George Street Primary School. 32 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
52.8dB
Night-time· 23:00 – 07:00
42.6dB