What does an EH18 postcode tell you?

That the address lies in the EH18 district of the EH (Edinburgh) postcode area, and the place OS Open Names most often lists first for its postcodes is Bonnyrigg. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 106 live postcodes.

EH18 postcode district

EH18, in the EH (Edinburgh) postcode area, has 106 live and 18 terminated postcodes in the ONS Postcode Directory of August 2026, and OS Open Names files 45 roads under it.

postcode area	EH (Edinburgh)
live postcodes	106
terminated postcodes	18
sectors	1
roads listed	45
companies registered	121
centroid	55.87687, -3.12244
directory release	2026-08

Postcodes and sectors

106 of the district's 124 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 55.87687, -3.12244, which locates the district, not a building.

sector	live	terminated
EH18 1	106	18

Companies registered in EH18

Companies House lists 121 companies with a registered office in EH18; 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 EH18

Scotland
Midlothian
Bonnyrigg
City of Edinburgh

Roads filed under EH18

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.

Broomieknowe
Church Road
Cuguen Place
De Quincey Path
De Quincey Road
Elm Row
Farm Avenue
Glebe Place
Gorton Avenue
Green Lane
Grove End
High Street
Kevock Road
Lasswade Road
Lower Broomieknowe
Mason Place
Mavisbank Place
Mc Lean Place
Melville Dykes Road
Melville View
Methven Terrace
Polton Bank
Polton Bank Terrace
Polton Cottages
Polton Road
Polton Road West
Ramsay Terrace
School Brae
School Green
School Green Close
St Annes Avenue
St Annes Path
Stevenson Place
The Cast
The Nursery
Upper Broomieknowe
Wadingburn Lane
Wadingburn Road
Walker Place
Wee Brae
Westmill Haugh
West Mill Pend
Westmill Road
Westmill Wynd
A768

Check an address in EH18

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=EH18" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about EH18

What does an EH18 postcode tell you?: That the address lies in the EH18 district of the EH (Edinburgh) postcode area, and the place OS Open Names most often lists first for its postcodes is Bonnyrigg. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 106 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 EH18

EH191.2 km
EH202.2 km
EH243.1 km
EH173.4 km
EH253.7 km
EH223.9 km
EH165.4 km
EH236.1 km
EH107.3 km
EH97.4 km
EH157.7 km
EH267.9 km
Every district
How a British address is written
Check any address

distance between the districts' centroids

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