SL5 postcode district

Postcodes and sectors

888 of the district's 1,460 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 51.40578, -0.66412, which locates the district, not a building.

Companies registered in SL5

Companies House lists 2,782 companies with a registered office in SL5; 244 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 SL5

• South East
• Windsor and Maidenhead
• North Ascot
• Bracknell Forest
• Sunninghill
• Broomhall
• South Ascot
• Sunningdale
• Ascot
• Chavey Down
• Cheapside
• Surrey
• Runnymede
• Winkfield Row
• Surrey Heath
• Blacknest
• Bracknell

Roads filed under SL5

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.

• Abbey Wood
• Agincourt
• Alderson Court
• All Souls' Road
• Alpine Close
• Altar Ho
• Amber Court
• Ancaster Drive
• Archbury Walk
• Armitage Court
• Asher Drive
• Audley Way
• Bagshot Road
• Ballencrieff Road
• Ballin Gardens
• Barkers Meadow
• Barton Road
• Beaufort Gardens
• Bedford Lane
• Beechcroft Close
• Beech Hill Road
• Beechwood Close
• Birch Lane
• Blackmoor Close
• Blackmoor Wood
• Blacknest Gate Road
• Blane's Lane
• Blythewood Lane
• Bodens Ride
• Boleyn Mews
• Bouldish Farm Road
• Bowden Road
• Bowyer Walk
• Bracken Bank
• Bridge Road
• Bridge View
• Broadlands Drive
• Broadpool Cottages
• Brockenhurst Road
• Brook Avenue
• Broomfield Close
• Broomfield Park
• Broomhall Lane
• Buckhurst Lane
• Buckhurst Road
• Burleigh Lane
• Burleigh Road
• Buttersteep Rise
• Cannon Mews
• Carbery Lane
• Cardwell Crescent
• Carriage Drive
• Carroll Crescent
• Cavendish Meads
• Cedar Drive
• Chanctonbury Drive
• Charnwood
• Charters Close
• Charters Gate
• Charters Lane

Check an address in SL5

Check an address in SL5

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SL5" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SL5

What does an SL5 postcode tell you?

That the address lies in the SL5 district of the SL (Slough) postcode area, and the place OS Open Names most often lists first for its postcodes is North Ascot. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 888 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 SL5

• GU204.7 km
• GU195.5 km
• RG125.9 km
• GU186.4 km
• GU256.4 km
• RG426.9 km
• TW208.1 km
• SL48.1 km
• GU248.7 km
• GU159.3 km
• RG4510.1 km
• KT1610.5 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids