Commercial Real Estate: How to Source Professional Property Owners in a Compliant Way in 2026 with Outsend

Karim advises companies on their property moves: an office floor to take over, a logistics warehouse on the outskirts, commercial premises to sell. His business rests on one simple but difficult thing: knowing who owns what, and reaching the right person without crossing the line. As the August 11, 2026 deadline approaches, he finds himself asking a question he had never formulated so clearly: do I have the right to call this SCI manager whose contact details I found online?

The answer, in commercial real estate, is not the same as in residential property. You are addressing professionals about their business assets: you operate under a distinct legal framework from the historical opt-out rules that apply to private individuals. You need to know it, document it, and build a list that complies with it from the very first line. This article explains how to identify holders of commercial premises and build a qualified, compliant contact list, using Outsend as your single working pipeline.

The commercial real estate market and who the professional property owners are

In commercial real estate, the holder of an asset is rarely a private individual in the traditional sense: most often it is a legal entity — a property-holding SCI (société civile immobilière), a holding company, an operating company that owns its own premises, or a real estate investment firm. Your contact is therefore a professional acting in the course of their business activity, which changes the legal basis for reaching out to them.

Offices, retail premises, logistics warehouses, business goodwill, and commercial leases make up a market distinct from residential property, driven by portfolio rebalancing, lease renewals, and asset sales. Holding commercial premises through a société civile immobilière is common practice in France, as it separates property assets from the operating business. The practical implication for you: behind a given property there is often a legal entity whose manager is the right point of entry. Identifying that entity and its legal representative is the core of sourcing work — and it is also what distinguishes this profession from sourcing landowners for a property developer.

The B2B cold outreach framework post-2026: legitimate interest, right to object, and the difference from Bloctel

In commercial real estate, you are not approaching a consumer: you are speaking to a professional about their business tool. This distinction changes your entire legal framework. Outreach between professionals is governed by a different set of rules from those applying to private individuals. France's data protection authority, the CNIL, recognises that B2B prospecting can rely on the legal basis of legitimate interest, provided the subject of the solicitation is related to the professional activity of the person contacted and that they can easily object. This is not prior consent: it is a structured framework with a right to object that must be respected.

The CNIL (2026) illustrates this principle with the example of an approach directed at a decision-maker regarding a tool relevant to their role: outreach is permissible as long as it relates to their profession and a way to object is provided. For a commercial real estate advisor, proposing a property valuation study to the manager of an SCI that owns commercial premises falls, by its very nature, within the scope of that person's professional activity.

The distinction is critical when compared to the consumer side. For private individuals, Légifrance (2026) sets out in Article L. 223-1, applicable from August 11, 2026, the prohibition on telephone canvassing of a consumer who has not previously expressed consent, defined as a manifestation of will that is "free, specific, informed, unambiguous, and revocable." On that date, the Bloctel opt-out service ceases to operate: the opt-out logic for private individuals is replaced by an opt-in requirement. To clearly understand the boundary between the two regimes, our dedicated guide on B2B telephone canvassing and the August 11, 2026 law details the dividing lines between your professional contacts and the general public, and should be read alongside our dossier on the August 11, 2026 law applied to real estate prospecting.

One important caveat: calling a natural person on their personal line, even in relation to a property they hold directly, brings you closer to the consumer regime. The boundary depends on the nature of the contact and the connection to their professional activity. When in doubt, a formal professional written approach remains the safest route.

Public sources for identifying holders of commercial premises

Several public and free databases allow you to trace back to the owning entity and its manager, without purchasing an opaque third-party file. The winning combination links legal company data, a directors' register, and real estate transaction data — all consolidated into a single list.

France's Sirene directory, maintained by INSEE, covers according to INSEE (2026) close to 25 million businesses and 36 million establishments, available as free open data, with legal form, activity code, address, and SIREN/SIRET identifiers. It is the backbone for identifying an SCI or property company and placing it geographically. The Registre national des entreprises (RNE — National Business Register), freely and openly distributed by INPI (2026), adds the layer of directors and legal representatives — indispensable for knowing who to contact on behalf of the entity, subject to confidentiality requests that certain natural persons may file.

On the transaction side, the Demandes de valeurs foncières (DVF) database published on data.gouv.fr (DGFiP, 2026) records property transfers over recent years with the property type, surface area, and price — but without the names of the parties. It does not provide contact details, but it maps activity in a given area and flags recently traded assets. To link those signals to contactable entities, you then cross-reference with legal data: that is precisely what Outsend does — it can enrich a list with SIRET, SIREN, VAT, and RCS data and surface legal form and directors to qualify the list.

Building a qualified, compliant list with Outsend

The compliant method starts with a territory and a target business profile, builds the list on demand, then enriches it with legal data before any contact is made. Outsend assembles this entire pipeline in a single pass instead of juggling four separate subscriptions, which also reduces the risk of inconsistencies between tools.

In practice, you define your territory — a business district, a logistics zone, a retail corridor — and the type of establishments you are targeting. Outsend builds the list from that geographic area, with name, address, phone number, website, and public reviews, rather than drawing from a static global database. You then enrich each record with legal form (SCI, SAS, holding company), SIREN number, and director, then chain the steps together in a no-code prospecting pipeline so everything flows automatically. For written outreach, the GDPR-compliant email finder and deliverability check via inbox test prevent messages from disappearing into the void. The principle of a clean telephone file for B2B outreach applies in exactly the same way to your real estate lists.

Compliance does not stop at collection. The CNIL (2021) states in its reference framework on managing commercial activities that data relating to a non-customer prospect may be kept for three years from the date of collection or the last contact initiated by that person; beyond that, you must either re-engage to confirm their interest or delete the data. Your list must therefore live, be cleaned regularly, and record all objections received.

Table: two regimes, two contact logics

Approaching a professional property owner and approaching a private individual follow different rules. This table summarises the key distinction for your practice — to be applied with the caution noted above regarding the true nature of your contact.

The commercial real estate advisor's compliance checklist

Before launching a sourcing campaign, check that every link in the chain holds up legally. A compliant list is built upfront — not after the first call comes back from an irritated director.

A few concrete control points: target legal entities and professional directors, and ensure your solicitation relates to their activity; favour a formal written approach when you may be reaching a personal line; include and document a simple opt-out mechanism in every message; keep a record of the source of each contact detail; apply the three-year retention period and purge anything beyond it. For operational reliability, a dead URL check prevents you from re-approaching dissolved entities, and enrichment with additional phone numbers improves your chances of reaching the right person. Maintaining this discipline means running a structured, defensible prospecting operation — not one you're constantly having to justify after the fact.

FAQ — Compliant sourcing in commercial real estate

Can I cold-call an SCI that owns commercial premises after August 11, 2026?

The professional regime differs from the consumer one: the CNIL recognises B2B prospecting on the basis of legitimate interest, provided the solicitation is linked to the person's professional activity and a right to object is offered. A property valuation study addressed to the manager of an SCI that owns commercial premises falls within that framework. Exercise caution if you are calling a personal line.

Is prior consent required to contact a professional director?

The prior opt-in requirement set out in Article L. 223-1 as of August 11, 2026 applies to telephone canvassing of consumers. For a director acting in the course of their professional activity, the basis recognised by the CNIL is legitimate interest combined with a right to object — not prior consent collected in advance.

Where can I find the owner of commercial premises for free?

INSEE's Sirene directory and INPI's Registre national des entreprises are both free and open data: they provide legal form, identifiers, and directors. The DGFiP's DVF database maps transactions without naming the parties. Outsend cross-references these sources to link a property to a contactable entity.

Does the DVF database give the name of the property owner?

No. The Demandes de valeurs foncières database records the property type, surface area, price, and location of transfers, but does not contain the names of the parties to the transaction. It is useful for spotting a recently traded asset or gauging activity in an area; to identify the contactable entity, you then cross-reference it with Sirene and the RNE.

What is the difference from land sourcing for a property developer?

Sourcing commercial premises targets entities that hold offices, warehouses, or retail walls in use. Sourcing land for a property developer or property dealer targets plots and landowners, with different sources and a different logic; we cover that in a separate article on sourcing landowners.

What are the risks of non-compliant telephone canvassing?

Beyond reputational damage, breaches of telephone canvassing rules expose you to administrative sanctions. Article L. 242-16 of the French Consumer Code provides that any breach of Articles L. 223-1 to L. 223-5 (which govern the right to object to telephone canvassing) is punishable by an administrative fine of up to €75,000 for a natural person and €375,000 for a legal entity. The best protection remains documenting your legal basis, your data sources, and all objections received.

Need a full overview? See the guide to compliant real estate prospecting.

This article provides general information and does not constitute personalised legal advice. For specific situations, consult a lawyer specialising in real estate law or GDPR.