RH12 postcode district

Postcodes and sectors

1,389 of the district's 2,131 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 51.07786, -0.33068, which locates the district, not a building.

Companies registered in RH12

Companies House lists 4,749 companies with a registered office in RH12; 879 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 RH12

• South East
• Horsham
• West Sussex
• Broadbridge Heath
• Crawley
• Rudgwick
• Warnham
• Surrey
• Waverley
• Rusper
• Faygate
• Bucks Green
• Tisman's Common
• Kingsfold
• Ellen's Green
• Mole Valley
• Colgate
• Lambs Green
• Strood Green
• Rowhook
• Holbrook

Roads filed under RH12

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.

• Adams Close
• Adelaide Close
• Agate Lane
• Albery Close
• Albion Way
• Alder Copse
• Alder Way
• Allcard Close
• Allingham Gardens
• Amberley Close
• Amberley Road
• Amundsen Road
• Angus Close
• April Close
• Arundale Walk
• Arunside
• Arun Valley Way
• Arun Walk
• Ashleigh Road
• Ashmore Lane
• Ashurst Close
• Aspen Way
• Avebury Close
• Avery Drive
• Badgers Close
• Bailey Close
• Bailing Hill
• Bakehouse Barn Close
• Barley Mews
• Barnes Mews
• Barnsfold Lane
• Barnsnap Close
• Barrackfield Walk
• Bartholomew Way
• Barttelot Road
• Baynards Lane
• Baynards Road
• Beale Close
• Bearsden Way
• Beaver Close
• Beeches Way
• Beech Road
• Beeding Close
• Beedingwood Drive
• Bell Road
• Benson's Lane
• Bentley Gardens
• Bertha Court
• Bignor Close
• Billingshurst Road
• Birch Court
• Birches Road
• Bishopric
• Blackbridge Lane
• Black Horse Way
• Blenheim Road
• Bloor Close
• Bluebell Close
• Blunts Way
• Bognor Road

Check an address in RH12

Check an address in RH12

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=RH12" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about RH12

What does an RH12 postcode tell you?

That the address lies in the RH12 district of the RH (Redhill) postcode area, and the place OS Open Names most often lists first for its postcodes is Horsham. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 1,389 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 RH12

• RH134.9 km
• RH119.3 km
• RH1411.9 km
• RH512.6 km
• GU612.8 km
• RH1013.2 km
• RH615.7 km
• RH1716.0 km
• RH416.9 km
• BN517.3 km
• RH317.6 km
• GU518.3 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids