Royer Law

26 June 2025 | 26 June 2025 | 4 min |

At the end of the 1960s, France discovered hypermarkets: unprecedented retail spaces that disrupted downtown businesses. In just five years, the number of these establishments exploded; small retailers became concerned, and local officials feared a commercial desert around traditional shopping streets. The government therefore sought to regulate the expansion of these large stores in order to:

  • Protect the artisanal and local retail fabric;
  • Preserve urban balance by preventing customer flow from shifting to the outskirts;
  • Maintain local employment when a new opening threatens to weaken dozens of existing businesses.

It was in this context that the so-called “Royer” law was passed on December 27, 1973, marking the cornerstone of a regulatory framework still active in French commercial planning.

Key Points of the Royer Law

  • Mandatory Prefectural Authorization
    Any creation or extension of sales area ≥ 1,500 m² (or ≥ 1,000 m² in city centers) must obtain administrative approval before any work begins.
  • Establishment of Departmental Commercial Development Commissions (CDAC)
    Members include: the prefect, regional and local elected officials, representatives of commerce, consumers, and employees.
    They examine the impact on: employment, urban vitality, traffic, and the balance between types of commerce.
  • Deadlines and Appeal Procedures
    A reasoned decision is expected within four months; refusals or approvals can be appealed before the National Commission (CNAC) and, if necessary, before the Council of State.
  • Sanctions
    Opening without authorization: immediate administrative closure, fines, and potentially suspension of the building permit.
  • Monitoring Extensions
    Any expansion that crosses the thresholds again must be reviewed by the commission; a business authorized for 1,400 m² that chooses to add 200 m² must therefore submit a new application.

In summary, the Royer law transforms commercial establishment into a controlled development project: it requires each large retail outlet to demonstrate its economic usefulness without harming the existing fabric, even before laying the first stone.

Legislative Developments: Raffarin → Dutreil → LME

YearsLawChanges
1996Raffarin LawLowers the threshold to 300 m²; strengthens the role of CDACs: social impact, environment, architectural integration.
2005Dutreil LawSimplifies procedures for areas < 300 m²; introduces the concept of "commercial complex" (shopping malls).
2008Economic Modernization Law (LME)Raises some thresholds (1,000 m² outside city centers); sets a maximum 2-month processing time to streamline investment.
2014Pinel LawSpecifies CDAC composition; introduces an opinion from the Departmental Commission for the Preservation of Agricultural Areas.

In practice

The CDAC regime established by the Royer law remains, but thresholds and deadlines have been relaxed to encourage investment while maintaining territorial oversight.
Today, any area ≥ 300 m² still requires authorization; beyond 20,000 m², the State can take back control via the CNAC.

Conséquences pratiques pour les professionnels de l’image

Implantation d’un studio ou labo photo

  • Surface de prise de vue + stockage + accueil client = vite > 300 m². Vous entrez alors dans le champ CDAC : dossier complet, étude d’impact trafic et emploi.
  • Comptez 6 à 12 mois entre le dépôt et l’autorisation définitive ; anticipez ces délais dans votre business plan.

Pièces stratégiques du dossier

  1. Étude de flux : montrer que le studio génère des déplacements limités (RDV, B2B) et non un trafic continu de grande surface.
  2. Dossier visuel : plans d’implantation, vues 3D, intégration paysagère, un plus pour convaincre élus et riverains.
  3. Argument emploi qualifié : retoucheurs, assistants, logistique photo ; valorisez la création de postes techniques non délocalisables.

Agrandissement ou déménagement

  • Passer de 250 à 400 m² déclenche une nouvelle demande d’autorisation ; prévoir un rétro-planning clair pour éviter la rupture d’activité.

Practical consequences for imaging professionals

Setting up a studio or photo lab

  • Shooting area + storage + client reception = quickly > 300 m². You then fall under the CDAC scope: complete file, traffic and employment impact study.
  • Expect 6 to 12 months between submission and final authorization; anticipate these delays in your business plan.

Strategic file components

  1. Flow study: demonstrate that the studio generates limited trips (appointments, B2B) and not continuous big-box traffic.
  2. Visual file: site plans, 3D views, landscape integration, a plus to convince officials and neighbors.
  3. Qualified employment argument: retouchers, assistants, photo logistics; emphasize the creation of non-relocatable technical positions.

Expansion or relocation

Increasing from 250 to 400 m² triggers a new authorization request; plan a clear retro-planning to avoid activity interruption.

Conclusion

The Royer Law remains a cornerstone in the history of commercial and advertising regulation in France. By establishing a legal framework for the establishment of large stores and laying the foundations for more ethical advertising, it marked a turning point in how commerce and commercial communication are perceived and regulated. For any advertiser and commercial actor in France, knowledge of this law and its evolutions is essential to navigate the complex regulatory landscape governing their activities.

Jérémy Carlo is the editorial director at Rétines, where he ensures the consistency and clarity of all content produced by the studio. His role goes beyond writing—he shapes the tone, structures the messages, and upholds a precise, demanding editorial line that stays true to the identity of Rétines. With a background in visual communication and solid experience in content strategy, he bridges the technical world of photography with clear, no-frills writing.

Jérémy works closely with photographers, art directors, and the commercial team to make sure every word published serves the image, the message, and the brand. From blog articles and client presentations to social media posts and internal documents—everything is filtered through his attentive eye. His strength lies in making complex ideas accessible without oversimplifying, and in highlighting the studio’s work without relying on unnecessary superlatives.

Through his writing, Jérémy helps Rétines exist beyond the image—by giving context to projects, emphasizing the thinking behind each shoot, and bringing to light the technical and aesthetic choices that drive each photograph.

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