40a, Box Lane, Hemel Hempstead, HP3 0DJ
About 40a
40a is a four-bedroom detached house in Hemel Hempstead (HP3 0DJ). It has a recorded floor area of 199 m² (around 2142 sq ft), construction records dating it to 1967-1975 and council tax band G. The latest certificate (March 2024) shows a D (score 62), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 77).
It hasn't traded since July 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £1,163,000 sits 81.7% above the 2007 sale of £640,000. On a £-per-square-foot basis, the last sale (£299/sq ft) was about 15.5% below the postcode norm.
What this property has
Inside
- Bedrooms4
- Bathrooms3
- Dining roomYes
- CloakroomYes
- EnsuiteYes
- StudyYes
Outside
- ParkingYes
Building
- RefurbishedYes
Energy performance
40a's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Get a survey for this property
Level 2 HomeBuyer Report
We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.
From £1,245 · Includes VAT
Planning history
40a 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
The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.
£1,163,000
Modelled from EPC, postcode comparables.
£640,000
Recorded with HM Land Registry.
Sales timeline
16 July 2007Most recent
£640,000
Median price across the last 5 sales in HP3 0DJ: £1,270,000 (2024–2021).
Nearby sales in HP3 0DJ
56 Box Lane, Hemel Hempstead, HP3 0DJ
Sold Oct 2024
£1,270,00016 Box Lane, Hemel Hempstead, HP3 0DJ
Sold Feb 2022
£1,550,00032 Box Lane, Hemel Hempstead, HP3 0DJ
Sold Jun 2021
£1,910,0001 The Pines, Box Lane, Hemel Hempstead, HP3 0DJ
Sold May 2021
£1,085,00022 Box Lane, Hemel Hempstead, HP3 0DJ
Sold Apr 2021
£1,072,000
Versus other Box Lane homes
Price per m² for 40a lags the street by a wide margin.
Price per m²
£3,216
Street avg £4,691
Floor Area
199 m²
Street avg 231 m²
Habitable Rooms
8 rooms
Street avg 9 rooms
CO₂ Emissions
8.6 t/year
Street avg 9.9 t/year
Similar properties nearby
1 Copper Beech Close
HP3 0DG
1 Croftmead Cottages, Long Lane, Bovingdon
HP3 0ND
1 Anson Close, Bovingdon
HP3 0RZ
1 Ashridge Close, Bovingdon
HP3 0QG
1 Cross Farm Mews, Flaunden Lane, Bovingdon
HP3 0RL
1 Bell Green, Church Street, Bovingdon
HP3 0LX
1 Birch Lane, Flaunden
HP3 0PT
1 Claverton Close, Bovingdon
HP3 0QP
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
0.1 km
Sheethanger Common — bus stop.
Closest school
1.4 km
Pixies Hill Primary School. 11 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
47.1dB

Night-time· 23:00 – 07:00
40.5dB







