SG11 postcode district

Postcodes and sectors

379 of the district's 487 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 51.88620, 0.03343, which locates the district, not a building.

Companies registered in SG11

Companies House lists 581 companies with a registered office in SG11; none of them at an address 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 SG11

• East Hertfordshire
• Hertfordshire
• Eastern
• Puckeridge
• Braughing
• Little Hadham
• Standon
• High Cross
• Clapgate
• Colliers End
• Bury Green
• Westland Green
• Barwick
• Standon Green End
• Old Hall Green
• Hay Street
• Haultwick
• Cradle End
• Albury
• Upwick Green
• Dassels
• Great Munden
• Wellpond Green
• Patmore Heath

Roads filed under SG11

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.

• Acremore Street
• Albury Road
• Arthur Martin-Leake Way
• Ashcroft Lane
• Aston Road
• Barleymead Way
• Barncroft
• Barwick Lane
• Batchelors
• Baud Close
• Beggarman's Lane
• Bird Court
• Bridal Way
• Britannia
• Bromley Lane
• Buntingford Road
• Cambridge Road
• Cannons Court
• Chalk Gardens
• Chapel Lane
• Chapmans End
• Chequers Close
• Chestnut Grove
• Church End
• Churchfields
• Clements Close
• Dane End Road
• Dark Lane
• Dawkins Close
• Einkorn Drive
• Farm Lane
• Farm Place
• Fishers Close
• Fishers Mead
• Fleece Lane
• Ford Field
• Ford Hill
• Ford Street
• Friars Road
• Frogs Hall Lane
• Gatesbury Way
• Gauldie Way
• Gifford's Lane
• Gore Lane
• Grafton Place
• Gravelly Dell
• Gravelly Lane
• Green Hill Close
• Green Lane
• Hadham Road
• Halls Close
• Hammarsfield Close
• Hawken Close
• Hay Street
• High Street
• Hoare's Lane
• Hoecroft Lane
• Horse Cross
• Hull Lane
• Huntsman Close

Check an address in SG11

Check an address in SG11

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SG11" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SG11

What does an SG11 postcode tell you?

That the address lies in the SG11 district of the SG (Stevenage) postcode area, and the place OS Open Names most often lists first for its postcodes is East Hertfordshire. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 379 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 SG11

• SG105.2 km
• SG97.7 km
• CM238.7 km
• SG128.7 km
• CM2111.2 km
• CM2411.8 km
• SG1412.3 km
• SG1313.1 km
• CM9213.1 km
• CM2013.2 km
• CM2213.5 km
• SG213.6 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids