How does data residency work?
Data residency is set by infrastructure choices: which cloud region you deploy to, where your database provider runs its clusters, where backups and read replicas land. It is easy to lose track of — a multi-tenant SaaS may replicate customer records across regions, and every sub-processor in the chain adds another possible location. If you cannot name the countries your data touches, you do not know your residency.
Does the GDPR require data residency in the EU?
No. The GDPR does not mandate that personal data stays in the EU. Chapter V (Articles 44–50) governs transfers to third countries and provides lawful routes — adequacy decisions, standard contractual clauses, binding corporate rules. Conversely, an EU server is not compliance by itself: a provider whose parent company answers to foreign disclosure laws can complicate the picture even with EU residency. Residency is one variable in a GDPR assessment, not the verdict.
How does self-hosting change data residency?
It turns residency from a vendor negotiation into a deployment decision. When you run the platform yourself, you pick the country, the provider, and where the backups go — data residency becomes a line in your infrastructure config. That control is a large part of the case for self-hosting under the GDPR and for owning your customer data more broadly.
Why does data residency matter for a small team?
Because buyers ask. Security questionnaires, enterprise procurement, and privacy-sensitive markets all want a one-line answer to “where is our data stored?”. A small team that can answer with a named region — instead of forwarding a sub-processor list — closes those conversations faster. Choosing residency early is also cheap; migrating a production database across jurisdictions later is not.