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21 Chambersbury Lane, Hemel Hempstead, HP3 8AY

Estimated value

£501,000

  • Since the 2012 sale (£290,000)+73%
  • Against HP3 8AY's recent median (£570,000)-12%

Newest record on this page: March 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Semi-detached
Bedrooms
3
Floor area
106 m²
1141 sq ft
Energy rating
D
Score 60
Council tax
Band D
Tenure
Owner Occupied
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Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£501,000

  • Against its 2012 sale (£290,000)+73%
  • Against HP3 8AY's recent median (£570,000)-12%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Chambersbury Lane is modelled from its 106 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in HP3 8AY. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    106 m² from the EPC lodged in April 2012

  • Sales of this home

    2 sales recorded, the latest in 2012

  • Recent sales in HP3 8AY

    5 sales, median £570,000 (2026–2022)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: March 2026Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

21 Chambersbury Lane valuation sits well clear of the typical sold price in this postcode.

Sales timeline

  1. 29 August 2012Most recent

    £290,000

    +22.4%over 2 years

  2. 19 May 2010

    £237,000

Median price across the last 5 sales in HP3 8AY: £570,000 (2026–2022).

Risks

What this page doesn't show

1 potential issue has already been flagged for 21 Chambersbury Lane, Hemel Hempstead, HP3 8AY. The detail, evidence and what to ask about it are in the Risks Report.
  • Larger development activity nearbyIn report
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

One time fee only - money back guarantee

Overview

About 21 Chambersbury Lane

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

21 Chambersbury Lane is a three-bedroom semi-detached house in Hemel Hempstead (HP3 8AY). It has a recorded floor area of 106 m² (around 1141 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (April 2012) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in November 2009 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Poor to Good and hot-water efficiency went from Poor to Good. The recommended improvements would push it to C (score 80). The latest certificate is from April 2012, so improvements made since then won't be reflected.

Across 2010–2012, sale prices on this property compounded at 9.3% per year. Today's modelled estimate of £501,000 sits 72.8% above the 2012 sale of £290,000. 14 years since the last transfer (August 2012).

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms3
Before you decide

Everything you need to know about 21 Chambersbury Lane

The true value, the hidden risks and the full sale history, in one report.

Larger development activity nearby

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Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

21 Chambersbury Lane's EPC is over a decade old — improvements since won't be reflected.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 15 Apr 2022

Current Certificate(1 of 2)
Apr 2012

EPC Rating

A
B
C
D
D60
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
4.5 t/year
Occupancy
Owner Occupied

Certificate validity

Expired on 15 April 2022

New assessment needed to sell or let

Property Improvements

Changes detected from historical EPC data

Apr 2012from Nov 2009
EPC improved fromE43toD60
Heating Controls
Prog + StatFull

Heating controls upgraded for better temperature management

Hot Water
Main (No Stat)Main System

Hot water system upgraded

Windows
Partial DoubleFull Double

Windows upgraded, improving insulation

Walls
Very PoorPoor

Wall insulation improved

Roof Insulation
PartialInsulated

Roof insulation improved

Planning

Planning history

Applications and permits filed against 21 Chambersbury Lane, Hemel Hempstead, HP3 8AY, sourced from the PlanIt planning register.

21 Chambersbury Lane has no planning applications on record.

1

But the area is active

1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.

On the street

Versus other Chambersbury Lane homes

Four headline reads against 14 similar houses on this street, drawn from the latest EPC and Land Registry data.

On years held, 21 Chambersbury Lane stands well clear of the street.

Price per m²

£2,736

Street avg £4,428

Strongly below

Floor Area

106 m²

Street avg 115 m²

Below

Habitable Rooms

5 rooms

Street avg 6 rooms

Below

CO₂ Emissions

4.5 t/year

Street avg 4.7 t/year

On par
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Hemel Hempstead district page.
Full Hemel Hempstead report

Rail-style transport is unusually close for this postcode.

Crime

211/mo

Falling year-on-year across the wider district.

Nearest stop

0.2 km

Mill Close — bus stop.

Closest school

0.3 km

Nash Mills Church of England Primary School. 18 schools nearby.

Nearest schools

  • Nash Mills Church of England Primary SchoolPrimary279m
  • Belswains Primary SchoolPrimary799m
  • Chambersbury Primary SchoolPrimary913m
  • Longdean SchoolSecondary1.3km

Nearest stops

  • Mill CloseBus stop160m
  • HighbarnsBus stop195m
  • Chambersbury LaneBus stop289m
  • Primary SchoolBus stop326m

Most reported crime locally

  • Violence & Sexual Offences937 reports34%
  • Anti-social Behaviour630 reports23%
  • Other Theft265 reports10%
  • Criminal Damage & Arson174 reports6%

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around HP3 8AY from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for HP3 8AY

Daytime· 07:00 – 23:00

48.9dB

Low
Night-time road noise heatmap for HP3 8AY

Night-time· 23:00 – 07:00

39.0dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Early 20th centurySemi-Detached HouseEPC D

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 £795 · Includes VAT

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£477k

1 Bedmond Hill, Bedmond Road, Pimlico

HP3 8SF

3 bed1 bath
£532k

1 Crofts Path

HP3 8HB

3 bed
£566k

1 Chambersbury Lane

HP3 8AY

3 bed2 bath
£407k

1 Arran Close

HP3 8TQ

3 bed1 bath
£707k

1 Alban Cottage, Leverstock Green Road

HP3 8LP

3 bed1 bath
£616k

1 Crossways

HP3 8PU

4 bed1 bath
£398k

1 Bunkers Lane

HP3 8AX

2 bed1 bath
£639k

1 Ashmore Gardens

HP3 8NZ

4 bed1 bath

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
Valuation method in detail
How the estimate is made
The estimate for 21 Chambersbury Lane is modelled from its 106 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in HP3 8AY. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 2 sales are recorded for 21 Chambersbury Lane. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 21 Chambersbury Lane was lodged in April 2012 at band D and expired in April 2022, so a new one is needed to sell or let. 2 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 21 Chambersbury Lane. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 13 months, which places each incident at an approximate point. The 18 schools and 30 stops listed are measured in a straight line from HP3 8AY, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
21 Chambersbury Lane is in council tax band D. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21 Chambersbury Lane, Hemel Hempstead, HP3 8AY. Each answer is also embedded as structured data for search engines.

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