42 The Square, Marlowes, Hemel Hempstead, HP1 1EP
About 42 The Square
42 The Square is a mid-terrace house in Hemel Hempstead (HP1 1EP). It has a recorded floor area of 28 m² (around 301 sq ft), construction records dating it to 1967-1975 and council tax band A. At 28 m² this is the 4th smallest of 8 units on EPC record in the building, where floor areas span 27–57 m². The building's EPC ratings span F to C, with this unit at the top. The latest certificate (March 2026) shows a C (score 72). The rating has held steady at C across 2 certificates since March 2016. Between certificates, wall efficiency went from Poor to Good; while window efficiency dropped from Good to Poor and lighting dropped from Very Good to Average. This certificate was lodged in the last six months, so the rating reflects current condition.
Untraded for 21 years, with the last transfer in January 2006. Across 1996–2006, sale prices on this property compounded at 13.5% per year. Today's modelled estimate of £144,000 sits 65.5% above the 2006 sale of £87,000. On a £-per-square-foot basis, the last sale (£289/sq ft) was about 200% above the typical sold price in the postcode. Its energy rating outperforms most of the postcode (better than 71% of similar EPCs).
Energy performance
42 The Square's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 14 March 2036
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
Cavity wall insulation installed
More low energy lighting installed
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Planning history
42 The Square 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
42 The Square has more than tripled in price since its earliest registered sale in 1996.
£144,000
Modelled from EPC, postcode comparables and a sale-price growth of 13.5% per year over 9 years.
£87,000
Growth on file: 13.5% per year over 9 years.
Sales timeline
6 January 2006Most recent
£87,000
+121.7%over 6 years8 August 1999
£39,250
+45.6%over 2 years13 October 1996
£26,950
Median price across the last 5 sales in HP1 1EP: £106,000 (2021–1999).
Nearby sales in HP1 1EP
48 The Square, Marlowes, Hemel Hempstead, HP1 1EP
Sold Jun 2021
£90,00041 The Square, Marlowes, Hemel Hempstead, HP1 1EP
Sold Mar 2020
£122,00043 The Square, Marlowes, Hemel Hempstead, HP1 1EP
Sold Jul 2016
£120,00045 The Square, Marlowes, Hemel Hempstead, HP1 1EP
Sold Mar 2014
£106,00044 The Square, Marlowes, Hemel Hempstead, HP1 1EP
Sold Jun 1999
£29,000
Versus other The Square homes
CO₂ Emissions for 42 The Square runs comfortably ahead of the street norm.
Price per m²
£3,107
Street avg £2,320
Floor Area
28 m²
Street avg 35 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
CO₂ Emissions
0.9 t/year
Street avg 2.4 t/year
Similar properties nearby
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The neighbourhood at a glance
Crime
245/mo
Falling year-on-year across the wider district.
Nearest stop
0.0 km
Marlowes — bus stop.
Closest school
0.5 km
South Hill 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
52.5dB

Night-time· 23:00 – 07:00
42.4dB







