HA2 postcode district

Postcodes and sectors

966 of the district's 1,683 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 51.57375, -0.36136, which locates the district, not a building.

Companies registered in HA2

Companies House lists 7,755 companies with a registered office in HA2; 1,862 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 HA2

• Harrow
• Greater London
• London

Roads filed under HA2

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.

• Abbots Drive
• Abercorn Crescent
• Albert Road
• Alexandra Avenue
• Alexandra Close
• Alfriston Avenue
• Allerford Court
• Allington Road
• Almond Way
• Ansel Adams Way
• Apple Grove
• Apsley Close
• Arbus Crescent
• Argyle Road
• Arundel Drive
• Ashbourne Avenue
• Athena Close
• Atherton Place
• Austen Road
• Avedon Close
• Balmoral Road
• Barmor Close
• Barnaby Close
• Beaumont Avenue
• Beechcroft Avenue
• Beechwood Avenue
• Beechwood Gardens
• Berriton Road
• Bladon Gardens
• Blenheim Road
• Blossom Avenue
• Bob Currie Close
• Bodmin Close
• Bown Close
• Brember Road
• Brendon Gardens
• Brickfields
• Brigade Close
• Broadfields
• Brooke Avenue
• Brookside Close
• Byron Hill Road
• Cadogan Close
• Cambridge Road
• Canterbury Road
• Capa Taro Way
• Capthorne Avenue
• Carlyon Avenue
• Chartwell Place
• Chatsworth Gardens
• Chester Drive
• Church Drive
• Churchfield Close
• Clitheroe Avenue
• Clonmel Close
• Clovelly Way
• Coles Crescent
• Corbin's Lane
• Corfe Avenue
• Cottage Close

Check an address in HA2

Check an address in HA2

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=HA2" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about HA2

What does an HA2 postcode tell you?

That the address lies in the HA2 district of the HA (Harrow) postcode area, and the place OS Open Names most often lists first for its postcodes is Harrow. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 966 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 HA2

• HA11.7 km
• HA52.9 km
• HA43.4 km
• UB53.6 km
• HA33.6 km
• UB64.1 km
• HA04.6 km
• HA75.4 km
• HA95.5 km
• HA66.0 km
• UB46.2 km
• UB16.5 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids