NP15 postcode district

Postcodes and sectors

404 of the district's 485 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 51.72636, -2.88663, which locates the district, not a building.

Companies registered in NP15

Companies House lists 672 companies with a registered office in NP15; 30 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 NP15

• Sir Fynwy
• Monmouthshire
• Wales
• Usk
• Brynbuga
• Raglan
• Rhaglan
• Llangibby
• Llangybi
• Pit
• Llancayo
• Llancaeo
• Gwehelog Common
• Derwen Fawr
• Great Oak
• Llannarth
• Llanarth
• Llanbadoc
• Llansoy
• Bettws Newydd
• Coleg Gwent
• Llangwm
• Cyncoed
• Kingcoed

Roads filed under NP15

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.

• Abergavenny Road
• Adams Close
• Alltybella Road
• Barnfield Close
• Baron Court
• Baron Street
• Barton Bridge Close
• Beaufort Crescent
• Beaufort Gardens
• Bersondy
• Black Barn Close
• Black Barn Lane
• Black Bear Close
• Blackfriars
• Blestium Drive
• Bridge Street
• Burrium Gate
• Cae Capel
• Caestory Avenue
• Caestory Crescent
• Cassia Drive
• Castle Hill
• Castle Mews
• Castle Oak
• Castle Parade
• Castle Road
• Castle Street
• Castle Wood
• Cefn Mawr Lane
• Chapel Road
• Chepstow Road
• Cherry Tree Lane
• Church Lane
• Church Street
• Church View
• Cilgant Caestory
• Clos Cantref
• Clos Croeso
• Clytha Road
• Conigar Crescent
• Conigar Walk
• Court Robin Lane
• Croes-Heol-y-March
• Cuckoos Row
• Cwrt Bryn Derwen
• Cwrt Ffynnon Gybi
• Denbury Mews
• Derwen Deg
• Estavarney Lane
• Ethley Drive
• Fairfax View
• Fayre Oaks
• Four Ash Street
• Georges Delight
• Glanynant
• Grey Hill Road
• Gwern Ddu Road
• Hanley Cwrt
• High Street
• Kennett Grange

Check an address in NP15

Check an address in NP15

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=NP15" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about NP15

What does an NP15 postcode tell you?

That the address lies in the NP15 district of the NP (Newport) postcode area, and the place OS Open Names most often lists first for its postcodes is Sir Fynwy. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 404 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 NP15

• NP411.1 km
• NP4412.8 km
• NP1813.6 km
• NP2514.0 km
• NP714.3 km
• NP1616.0 km
• NP1916.3 km
• NP2616.8 km
• NP2017.3 km
• NP1317.6 km
• NP1119.2 km
• NP1019.9 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids