STJ Airbnb Ruling Brazil: Can Your Condominium Ban Short-Term Rentals?

Foreign investors buying apartments in Leblon, Copacabana, Florianopolis, or Sao Paulo frequently underwrite the purchase based on projected Airbnb revenue. Daily short-term rental rates in premium locations can deliver 4-6% gross annual yields, with top-performing units hitting 87% occupancy. The investment math looks compelling — until the condominium association votes to ban short-term rentals entirely.

This is not a hypothetical risk. Brazil's Superior Court of Justice (STJ) has issued definitive rulings establishing that condominium associations have the legal authority to restrict or ban short-term rentals. The ruling fundamentally changed the assumption that owning an apartment automatically includes the right to rent it out on platforms like Airbnb.

What the STJ Ruled

The STJ established a legal precedent determining that repeated, professional, hotel-style short-term rentals have the capacity to alter the fundamental residential purpose of a condominium building. The court ruled that when high-turnover short-term stays compromise the security or peaceful coexistence of permanent residents, the condominium association is legally empowered to restrict or ban such activity.

The reasoning: a residential condominium exists for residential purposes. When a significant portion of units operates as de facto hotel rooms — with rotating guests, luggage traffic, unfamiliar faces accessing security systems daily, and noise from transient occupants — the character of the building changes. The STJ determined that protecting the residential character of the condominium is a legitimate exercise of the association's governance authority.

This does not mean every condominium in Brazil has banned short-term rentals. It means every condominium in Brazil can ban them, provided they follow the correct legal procedure.

The Two-Thirds Supermajority Rule

Under Article 1,351 of the Brazilian Civil Code, formally altering the building's designated purpose or modifying the Convencao de Condominio (the condominium's constitutional document) requires an affirmative vote of two-thirds of all unit owners — not two-thirds of those present at the assembly, but two-thirds of the total ownership pool.

This is a high bar. In a 100-unit building, 67 owners must vote in favor. Absentee owners who do not vote are effectively voting against the change. This means that in buildings with a large proportion of investor-owners (who tend to favor short-term rentals) or absentee foreign owners (who rarely attend assemblies), passing a ban is more difficult.

Conversely, in buildings dominated by permanent residents who are directly affected by short-term rental disruptions, reaching the two-thirds threshold is achievable — and once the ban is recorded in the Convencao, it is binding on all current and future owners.

What This Means for Foreign Investors

If you are buying a Brazilian apartment with the intention of operating it as a short-term rental, you cannot simply check whether the current owner was running it on Airbnb. The relevant question is whether the condominium's governing documents explicitly allow it — and whether the association could vote to ban it after you buy.

Before the purchase, your due diligence must include:

1. Review the Convencao de Condominio. This is the building's constitutional document, registered at the Cartorio de Registro de Imoveis in Book No. 3. Look for clauses that explicitly address short-term rentals, temporary accommodation, or commercial use of residential units. If the Convencao is silent on the topic, short-term rentals are generally permissible — but the association retains the right to amend the Convencao with a two-thirds vote.

2. Review the Regimento Interno. The Internal Regulations govern daily operations (pool hours, pet policies, move-in procedures). While the Regimento Interno is subordinate to the Convencao and cannot override it, it may contain granular rules about minimum stay durations, guest registration requirements, or noise restrictions that effectively constrain short-term rental operations.

3. Review minutes of recent general assemblies (Atas de Assembleia). These records reveal whether short-term rentals have been a topic of discussion, whether any motions to restrict them have been proposed, and what the sentiment of the ownership community looks like. If the building held a vote that fell short of the two-thirds threshold, it signals ongoing tension that could result in a future ban.

4. Talk to the Sindico (building manager). The Sindico is the elected administrator who runs day-to-day operations. They will know whether existing owners are operating short-term rentals, whether complaints have been filed, and whether the issue is actively being debated.

The Convencao vs. Regimento Interno Distinction

This distinction matters legally. The Convencao de Condominio is the higher-order document. Altering it requires the two-thirds supermajority of all owners. The Regimento Interno is subordinate and can generally be amended by a simple majority of attendees at a general assembly.

A building cannot ban short-term rentals through the Regimento Interno alone — that would require amending the Convencao. But the Regimento Interno can impose operational restrictions (minimum stay of 30 days, mandatory guest registration with 48-hour advance notice, prohibition of key lockboxes in common areas) that make short-term rental operations practically unworkable even without a formal ban.

Foreign investors should review both documents carefully and assess not just what is currently permitted, but what could change.

Impact on Yield Projections

The STJ ruling means that short-term rental yield projections for Brazilian condominiums now carry regulatory risk that did not exist before. When underwriting a purchase based on Airbnb revenue, investors should model two scenarios:

Scenario A: Short-term rentals continue. Use realistic occupancy rates (60-80% for well-located properties), account for the 15% non-resident withholding tax on gross rental income, and factor in platform fees, cleaning costs, and property management commissions.

Scenario B: The condominium bans short-term rentals. Model the property based on long-term rental yields, which are typically lower (3-5% gross in premium locations). This is your downside case. If the property still makes financial sense under long-term rental assumptions, the investment is defensible. If it only works as an Airbnb, you are betting on a regulatory status quo that the STJ has explicitly said can change.

Buildings That Explicitly Allow Short-Term Rentals

Some newer developments — particularly in tourism-heavy areas — have Convencao documents that explicitly authorize short-term rentals. These buildings were designed and marketed as investment properties, and their governance documents reflect this from inception.

Buying in a building with explicit authorization in the registered Convencao provides the strongest protection, because reversing that authorization would require the same two-thirds supermajority — which is unlikely in a building full of investor-owners who bought specifically for rental income.

What Foreign Investors Should Do

The STJ ruling does not make short-term rental investment in Brazil unworkable. It makes it a due diligence question rather than an assumed right. Here is the practical checklist:

1. Obtain and read the building's Convencao de Condominio before making an offer. Your lawyer can request a certified copy from the Cartorio de Registro de Imoveis where it is recorded in Book No. 3.
2. Request the Atas de Assembleia (assembly minutes) from the past two to three years. Look for any motions or discussions related to short-term rentals, guest policies, or building usage restrictions.
3. Speak with the Sindico or the Administradora (property management company) about current short-term rental activity in the building and any known complaints.
4. If the Convencao is silent on short-term rentals, assess the ownership composition. A building with a high proportion of investor-owners is less likely to pass a ban. A building dominated by permanent residents is more likely to push for restrictions.
5. If you are buying specifically for Airbnb income, strongly prefer buildings with explicit short-term rental authorization in the registered Convencao.

The STJ did not ban short-term rentals in Brazil. It gave condominiums the legal authority to do so — and that changes how every foreign investor should evaluate a purchase.

The full condominium bylaw audit checklist — including the specific Portuguese clauses to look for, assembly voting analysis framework, and Regimento Interno red flags — is included in our Buying Property in Brazil — Expat Guide.

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