Airbnb and Condominium Approval: STJ’s May 2026 Ruling

In REsp 2.121.055/MG, decided on 7 May 2026, the Second Section of Brazil’s Superior Court of Justice (STJ) addressed atypical short-stay contracts involving repeated economic exploitation or professional operation that changes a property’s residential purpose. In that situation, the use must be provided for in the condominium convention approved by two-thirds of condominium owners. The ruling does not impose the same approval requirement on every property listing on a digital platform.

Scope of the May 2026 ruling on short-stay contracts

This ruling represents one of the most important precedents issued by the STJ on short-term rentals in residential condominiums and is expected to have a direct impact on property owners, real estate investors, condominium managers, property administrators, rental operators, and foreign buyers of real estate in Brazil.

The decision was issued in case REsp 2.121.055, under the reporting justice Nancy Andrighi. According to the majority opinion, the recurring economic exploitation of short-term stays may exceed the strictly residential use of the unit and affect the collective functioning of the condominium.

What did the STJ decide?

The key issue is the actual use of the property and its compatibility with the residential purpose of the building, not merely the use of an app. The contract, operating model and condominium rules must be assessed together.

For the majority of the Second Section, the issue is not limited to individual property rights but also involves collective impacts on security, circulation of people, peace, and condominium governance.

The STJ’s official Informativo 889 distinguishes the atypical contracts examined from both residential seasonal leases and hotel accommodation contracts. Not every short stay should be classified as hospitality, and use of a digital platform does not by itself determine the legal nature of the arrangement.

For an atypical operating model that changes the residential purpose, the corresponding use must be authorized in the condominium convention approved by two-thirds of condominium owners, under Article 1,351 of the Brazilian Civil Code.

The decision also rejects the idea that the mere use of a digital platform automatically changes the legal nature of the activity. For the STJ, the key issue is not the platform itself, but the actual manner in which the property is exploited.

Did the STJ ban Airbnb in Brazil?

No.

The decision does not make short-term rentals illegal nor does it prohibit platforms such as Airbnb in Brazil. It also does not establish a universal and automatic ban applicable to all residential condominiums.

What the STJ stated is that the recurring exploitation of short-term stays may require specific condominium authorization when it conflicts with the residential purpose of the building.

In practice, this means that different condominiums may adopt different approaches. Some will continue allowing short-term rentals without restrictions, while others may impose stricter rules or even prohibit the activity, provided applicable legal and condominium rules are respected.

The precedent reinforces a jurisprudential trend that has been developing in recent years: short-term rentals cannot be analyzed solely from the perspective of individual property rights, ignoring their collective impact within condominiums.

Is the Airbnb issue purely contractual?

No.

The dispute has a much broader scope and involves civil law, condominium law, urban law, regulatory law, and even competition-related issues.

A key difficulty is that certain rental models do not fit neatly into traditional legal categories. In many cases, the activity does not clearly correspond either to classic residential leases or to hotel operations.

There are also important differences between situations that are often grouped under the general label “Airbnb”, such as:

• occasional renting by an owner during travel;
• professional investors operating multiple units;
• units used almost exclusively for very short stays;
• developments designed for tourism use from the outset;
• hybrid structures such as branded residences, condo-hotels, and serviced apartments.

The STJ emphasized that the analysis must consider the actual operational reality and its impact on the residential purpose of the condominium.

What changes for condominiums?

The decision significantly increases the importance of condominium governance and the drafting of condominium bylaws.

Clauses relating to building purpose, access control, guest circulation, security rules, and economic use of units become increasingly relevant.

There may also be an increase in disputes involving assemblies, qualified quorums, and interpretation of older bylaws drafted before the expansion of short-term rental platforms.

In many Brazilian condominiums—especially in tourist areas—there is often a gap between long-standing tolerated practice and the actual legal certainty of such tolerance.

It is not uncommon for short-term rentals to operate informally for years without explicit authorization in the condominium bylaws. In such cases, changes in management, internal disputes, or increased resident pressure may significantly alter the condominium’s position.

The STJ decision strengthens legal arguments in favor of restricting or regulating such activities.

What changes for investors and property buyers?

The precedent increases the importance of condominium due diligence in real estate transactions aimed at short-term rental income.

Beyond land registry and title analysis, it is now essential to assess the condominium’s actual operational reality, including: condominium bylaws, minutes of general meetings, internal regulations, history of Airbnb-related disputes, practical tolerance toward short-term rentals.

This is particularly relevant in markets such as Rio de Janeiro, São Paulo, and northeastern tourist destinations, where a significant portion of acquisitions is based on short-term rental income expectations.

Preventive legal analysis becomes especially important in hybrid developments, branded residences, condo-hotels, and projects marketed with rental yield expectations.

Does the decision settle the issue?

This precedent must be distinguished from STJ Repetitive Theme 1443. As checked on 16 September 2026, the official record shows the issue referred to the Second Section, with no judgment or final thesis recorded. It asks whether a residential-purpose clause is sufficient to prevent short-term rentals through digital platforms even without an express prohibition.

The record also states that pending proceedings involving the same legal issue are stayed. This is a procedural stay, not a general ban on Airbnb. REsp 2.121.055/MG must not be presented as a final repetitive thesis under Theme 1443.

No.

Although the ruling has strong precedential weight, the issue is far from fully settled.

The decision itself included dissenting opinions regarding the limits of condominium autonomy and property rights.

Moreover, practical application will continue to depend on factors such as:

• wording of the condominium bylaws;
• type of development;
• intensity of rental activity;
• operational model;
• presence of hospitality-like services;
• condominium history;
• actual occupancy patterns.

The topic is likely to continue evolving through legislation and case law in the coming years.

Conclusion

The STJ Second Section ruling is a major milestone in Brazilian case law on Airbnb and short-term rentals in residential condominiums.

The Court did not ban digital rental platforms nor eliminate the possibility of short-term economic exploitation of residential properties. However, it reinforced that such activity may require compatibility with the residential purpose of the building and appropriate condominium authorization.

For owners, investors, and buyers, the precedent significantly increases the importance of preventive analysis of condominium bylaws, building governance, and regulatory risk associated with the activity.

For the broader case-law overview and differences between precedents, see our general guide to STJ and Airbnb in Brazil.