Flat 4, 25 High Street, Hemel Hempstead, HP1 3AR
About Flat 4
Flat 4 is a semi-detached house in Hemel Hempstead (HP1 3AR). It has a recorded floor area of 34 m² (around 366 sq ft), construction records dating it to 1900-1929 and council tax band A. At 34 m² this is the smallest unit on EPC record across the building (34–102 m²). The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (53 versus a best of 71). The latest certificate (January 2018) shows an E (score 53), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2012); the latest reading is one band lower. Between certificates, wall efficiency went from Very Poor to Poor and window efficiency went from Average to Good; while roof efficiency dropped from Good to Very Poor and lighting dropped from Good to Very Poor. The recommended improvements would push it to D (score 68).
At 34 m² it sits well below the postcode median (71 m² across 3 EPCs), making it one of the more compact homes locally. Across 2004–2017, sale prices on this property compounded at 1.9% per year. Today's modelled estimate of £167,000 is 12.8% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£404/sq ft) was about 46.9% above the typical sold price in the postcode. On the market in May 2017 and unlisted since — roughly 9 years.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
Low energy lighting percentage decreased
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 £820 · Includes VAT
Planning history
Flat 4 has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Latest sale on Flat 4 was the lowest on Land Registry record across the postcode.
£167,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.9% per year over 13 years.
£148,000
Growth on file: 1.9% per year over 13 years.
Sales timeline
14 May 2017Most recent
£148,000
+28.7%over 13 years4 March 2004
£115,000
Median price across the last 5 sales in HP1 3AR: £190,000 (2016–2003).
Versus other High Street homes
Price per m² for Flat 4 runs comfortably ahead of the street norm.
Price per m²
£4,353
Street avg £2,692
Floor Area
34 m²
Street avg 76 m²
Habitable Rooms
1 rooms
Street avg 3 rooms
CO₂ Emissions
3.0 t/year
Street avg 3.3 t/year
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The neighbourhood at a glance
Crime
16/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Fensomes Alley — bus stop.
Closest school
0.3 km
George Street Primary School. 34 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
53.4dB

Night-time· 23:00 – 07:00
43.1dB







