What does an HP8 postcode tell you?

That the address lies in the HP8 district of the HP (Hemel Hempstead) postcode area, and the place OS Open Names most often lists first for its postcodes is Chalfont St Giles. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 220 live postcodes.

HP8 postcode district

HP8, in the HP (Hemel Hempstead) postcode area, has 220 live and 100 terminated postcodes in the ONS Postcode Directory of August 2026, and OS Open Names files 103 roads under it.

postcode area	HP (Hemel Hempstead)
live postcodes	220
terminated postcodes	100
sectors	1
roads listed	103
companies registered	678
centroid	51.63812, -0.56961
directory release	2026-08

Postcodes and sectors

220 of the district's 320 postcodes are live in the ONS Postcode Directory of August 2026. A postcode directory says whether a code is in use, never who is there. The live postcodes centre on 51.63812, -0.56961, which locates the district, not a building.

sector	live	terminated
HP8 4	220	100

Companies registered in HP8

Companies House lists 678 companies with a registered office in HP8; 70 of them at addresses shared by 25 or more companies (1 October 2026 snapshot). 25 is the count at which the address lookup reports a company cluster.

Places OS Open Names lists for HP8

Buckinghamshire
South East
Chalfont St Giles
Little Chalfont
Three Rivers
Hertfordshire
Eastern
Amersham

Roads filed under HP8

Named roads first, then numbered ones. A road is filed under one district even where it runs through several, so a street missing here may be listed under a neighbouring district — which is why the address lookup never calls a British street absent. Great Britain has no open register of buildings, so a listed road never means a building on it exists.

Albion Crescent
Albion Road
Amersham Road
Aran Heights
Ashwells Way
Back Lane
Barrington Park Gardens
Birkett Way
Bottom House Farm Lane
Bottrells Lane
Bowler's Orchard
Bowstridge Lane
Bramble Mead
Brayfield Close
Brayfield Lane
Brayfield Way
Burton's Way
Burtons Lane
Captain Cook Close
Cherry Rise
Coke's Farm Lane
Coke's Lane
Cromwell Close
Crossleys
Deadhearn Lane
Deanway
Dibden Hill
Dodds Lane
Doggetts Wood Close
Doggetts Wood Lane
Ellwood Rise
Fleetwood Close
Garden Reach
Gordon Way
Gorelands Lane
Gott Place
Grayburn Close
Harewood Road
Hearne Court
Highfield
High Street
High View
Hill Farm Lane
Hillside Close
Hodgemoor View
Horse Croft Close
Kings Close
Kings Road
Kirby Close
Lagger Close
Lapraik Grove
Lodge Lane
London Road
Long Walk
Loudhams Wood Lane
Maplefield Lane
Meadow View
Middle Meadow
Mill Lane
Milton Fields

all 103 roads

Milton Hill
Narcot Lane
Narcot Road
Narcot Way
New Road
Nightingales Lane
Old Shire Lane
Orchard Road
Outlook Drive
Palliser Road
Pankhurst Road
Park Grove
Parsonage Road
Penwynne Gardens
Percy Terrace
Pheasant Hill
Rectory Gardens
Roughwood Lane
School Lane
Seymour Road
Silsden Crescent
Silver Hill
Stratton Chase Drive
Stylecroft Road
Sussex Close
Sycamore Close
Sycamore Rise
Sycamore Road
The Brow
The Green
The Hawthorns
The Lagger
Three Households
Town Field Lane
Tripps Hill Close
Turners Wood Drive
Up Corner
Up Corner Close
Vache Lane
Valentine Way
White Hart Close
Woodbank Drive
B4442

Check an address in HP8

The same road list through the API, from the outward code alone:

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=HP8" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about HP8

What does an HP8 postcode tell you?: That the address lies in the HP8 district of the HP (Hemel Hempstead) postcode area, and the place OS Open Names most often lists first for its postcodes is Chalfont St Giles. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 220 live postcodes.

Where the counts come from

ons-postcode-directory · version 2026-08 · Contains ONS, OS and Royal Mail data © Crown copyright and database right 2026, Open Government Licence v3.0. Northern Ireland postcodes are excluded: their reuse needs a Land & Property Services licence.
os-open-names · version 2026-11-01 · Contains OS data © Crown copyright and database right 2026, Open Government Licence v3.0.
uk-companies-house · version 2026-10-01 · Companies House free company data product, Open Government Licence v3.0

What each figure means, and what a district page never says, is set out in Reading a British postcode district page; the glossary defines a postcode district, a postcode area, a postcode directory and a street register.

Data synced on 2026-11-01: the newest version among the datasets listed above.

Districts nearest HP8

HP74.0 km
SL94.5 km
HP64.9 km
HP95.8 km
WD36.1 km
UB97.8 km
HP58.7 km
HP109.5 km
HP1510.0 km
HA610.6 km
WD1810.8 km
WD410.9 km
Every district
How a British address is written
Check any address

distance between the districts' centroids

Wrong result, or is it about you? If this tool said something you think is wrong, tell us and a person reads it. If Spaw is holding data about you and you never signed up here — a customer may have had your address verified, or reported that a message to it bounced — erase it yourself, confirmed by mail to that address and with no account needed.

More free tools

All free tools

Need this at scale?

The Spaw API runs the same check with batch and bulk endpoints, monitored address lists, your own suppression list and outcome reporting — 100 free credits a month, no card required.

Get your API key