Cardiff OOH buying under Welsh language and devolved policy rules

What to take away

• Out of home advertising in Cardiff sits under Welsh language standards, devolved planning and site approval rules that differ from England.
• Welsh language standards can require bilingual OOH copy for public bodies and some campaign funders, but language choice is also a creative decision.
• Site approval in Cardiff runs through the local planning authority, with national guidance on outdoor advertisements and signs.
• The Cardiff government and media cluster concentrates public sector, broadcaster and agency audiences within a few square miles.
• Scheduling should avoid the Senedd election period and major Welsh events, and build in lead time for approvals.
• Compliance checks cover Welsh language duties, CAP Code rules on beliefs and cultural identity, and local planning consent.

Welsh language standards and what they mean for OOH copy

Welsh language standards are the duties placed on public bodies in Wales under the Welsh Language (Wales) Measure 2011. They set out when and how organisations must use Welsh, including in public communications. For campaign buyers, that matters when the advertiser or funder is a public body, or when the campaign is part of a Welsh Government advertising push.

A public body subject to standards will usually need bilingual OOH copy. That means two language versions of the same message, not a token translation. The Welsh Language Commissioner can investigate complaints, so the standard is not optional. For brands without statutory duties, Welsh language use is a choice, but it signals respect for the audience.

OOH copy is short, so bilingual treatment needs care. A headline in Welsh and English can double the word count on a six-sheet or digital screen. Designers often use one language as the main line and the other as a supporting line, or split a campaign across sites. The key is that neither language looks like an afterthought.

Language use can also touch the CAP Code rules on beliefs and cultural identity. The Advertising Standards Authority's guidance covers ads that might cause serious or widespread offence, including on grounds of language or nationality. A clumsy language joke can fall foul of that.

You can check the wording against the ASA advertising codes before you brief a designer.

For more on the general framework, see the rules and compliance guide.

Devolved planning rules for Cardiff advertising sites

Planning is devolved in Wales. Cardiff Council is the local planning authority for the city, and it decides applications for advertisements and signs. The Town and Country Planning Act 1990 and the Town and Country Planning (Control of Advertisements) (England) Regulations 2007 do not apply in Wales in the same way.

Wales has its own advertisement regulations, so a consent that works in Bristol may not transfer to Cardiff.

Most small advertisements benefit from deemed consent, but larger formats, illuminated signs and digital screens usually need express consent. Cardiff Council's planning department will look at siting, size, illumination and impact on the street scene.

Conservation areas and listed buildings add another layer. Central Cardiff has several conservation areas, and a proposed digital screen near a listed building will face closer scrutiny.

Site approval is not just about planning permission. Some sites sit on land owned by the council or by Transport for Wales, and the landowner can impose its own conditions. A bus shelter site may need agreement from both the planning authority and the shelter owner. That can add weeks to a launch.

The basics of consent are set out in the GOV.UK outdoor advertising guidance, though you should check current Welsh regulations with Cardiff Council. For a wider view of how the rules fit together, see UK regulations apply.

Cardiff's government and media cluster as an audience

Cardiff is Wales's government and media centre. The Senedd sits in Cardiff Bay, and the Welsh Government has offices across the city. BBC Cymru Wales, ITV Cymru Wales and S4C are based in or near Cardiff.

That concentration creates a distinct audience for out of home advertising: politicians, civil servants, journalists, broadcasters and agency staff, all moving through the same few square miles.

That cluster shapes what a campaign can achieve. A site on Lloyd George Avenue or near Central Square reaches people who make or report on policy. A site in Cathays reaches students and university staff. A site on Queen Street reaches shoppers and commuters. The same creative can perform differently depending on where in the cluster it sits.

Buyers often treat Cardiff as a single market, but the cluster is not uniform. The Bay is quieter at weekends; the city centre is busier. Events at the Principality Stadium, such as international rugby matches, bring huge footfall but also road closures. Scheduling around those days can change the value of a site.

For public sector advertisers, the cluster is also a professional audience. A campaign aimed at Welsh public bodies will be seen by the people who work in them. That raises the bar for accuracy in Welsh language copy. A spelling mistake in a Welsh headline will be noticed by first-language speakers.

For more on matching message to audience, see target audience.

Scheduling around the Welsh political and events calendar

Scheduling in Cardiff is not just about footfall. The Welsh political calendar has quiet and busy periods. The Senedd election period brings restrictions on some public sector advertising.

The Welsh Government has its own rules on publicity during election periods, and public bodies must be careful not to spend public money on material that could be seen as party political.

Major events also matter. The Principality Stadium hosts rugby internationals, concerts and other events that draw tens of thousands of people into the city centre. On those days, some roads close and bus routes change. A campaign that assumes normal traffic will underdeliver.

Conversely, a site near the stadium on a match day can reach a huge audience in a short window.

Weather is a factor too. Cardiff is one of the wetter cities in the UK, and digital screens need to be readable in low light and rain. Static sites can suffer from condensation. Scheduling a campaign in winter means planning for shorter daylight hours and more indoor audience movement.

A simple rule is to build a calendar that marks the Senedd election period, the Six Nations, major concerts and university term dates. Then decide which sites are worth the premium on those days.

For a worked example, imagine a public health campaign launching in October. You would avoid the half-term week if your audience is families, and you would check for any stadium event that might divert traffic. You would also allow extra time for bilingual copy approval.

Here is a worked example of a scheduling plan for a Cardiff public sector campaign:

1. Confirm the campaign dates and check the Senedd election period.
2. List major events at the Principality Stadium and other venues.
3. Map sites to audience movement on normal days and event days.
4. Set a bilingual copy deadline at least two weeks before launch.
5. Book site approval and planning checks before the copy deadline.

That sequence keeps the legal and creative work in order.

Compliance checks before a Cardiff campaign runs

Before any Cardiff campaign runs, you need to confirm the regulatory position. The ASA regulates advertising across the UK, including Cardiff. Its remit covers most OOH advertising, and it can act on complaints.

You can read how that remit works on the ASA regulation page. The CAP Code is the rulebook, and it applies to Welsh language copy just as it does to English.

The ASA also publishes guidance on beliefs and cultural identity. That guidance is a useful test for language and cultural references in OOH copy. If a line plays on accent, dialect or national identity, check it against the guidance before you book.

Welsh language standards add a separate check for public bodies. If your advertiser is a Welsh public body, confirm which standards apply and whether the campaign needs bilingual treatment. If the campaign is funded by the Welsh Government, check the funding agreement for language conditions.

Planning consent is the third check. Confirm whether the site has deemed consent or needs express consent, and whether any landowner agreement is needed. For digital screens, check the illumination conditions. For sites in conservation areas, check the local plan policies.

Finally, check the creative against the advertising rules. A checklist helps:

• Confirm whether Welsh language standards apply to the advertiser.
• Check bilingual copy with a first-language Welsh speaker.
• Verify CAP Code compliance, including beliefs and cultural identity.
• Confirm planning consent status for each site.
• Check landowner agreements for council or Transport for Wales land.
• Review the scheduling calendar for political and event conflicts.
• Keep evidence of approvals for the campaign file.

That list is not exhaustive, but it covers the main Cardiff-specific risks.

Common questions

Do Welsh language standards apply to every OOH campaign in Cardiff? No. They apply mainly to public bodies and some publicly funded campaigns. Private brands can choose whether to use Welsh, though bilingual copy often performs well with local audiences.

Can I use a site approved in England for a Cardiff campaign? Not automatically. Planning is devolved, and Cardiff Council applies Welsh advertisement regulations. You need to check the site's consent status separately.

How far ahead should I book Cardiff sites? Allow extra time for bilingual copy approval and planning checks. Two weeks before launch is a sensible minimum for copy, and longer if the site needs express consent.

Does the ASA regulate Welsh language advertising? Yes. The CAP Code applies across the UK, and the ASA can consider complaints about Welsh language copy, including on grounds of offence or cultural identity.

What is the Cardiff government and media cluster? It is the concentration of Welsh Government, Senedd, broadcaster and agency offices in Cardiff, which creates a distinct audience for out of home advertising in the city centre and Cardiff Bay.

When should I avoid scheduling in Cardiff? Avoid the Senedd election period for public sector campaigns, and plan around major stadium events that change traffic and footfall. Check the calendar before you book.