With high temperatures in many Brazilian cities, especially in summer, the installation of air conditioning units in individual units has become a frequent request in condominiums. Recently, however, information has been circulating suggesting there is a “new law banning air conditioning units on building façades”, giving rise to doubts and debate among residents and building managers. It is important to clarify what the actual legislation states and how this rule applies, without alarmism and with a focus on harmonious condominium living.

What does the law actually say?

There is no new law in Brazil that absolutely bans the installation of air conditioning units on building façades. What does exist is the interpretation of Article 1,336 of the Civil Code, which establishes that a unit owner may not alter the shape, colour or appearance of the façade or the external parts of the building without authorisation. This legal provision has been applied even when the alteration results from the installation of visible air conditioning condenser units.

The building's façade is considered common property, and any modification that visually affects it — such as the installation of external equipment, pipework, brackets or drainage — is treated as an alteration that, as a rule, requires approval under the by-laws or internal regulations.

In other words, the right to install air conditioning is not abolished, but unit owners must follow rules designed to protect not only the building's appearance, but also its safety and overall harmony.

How to guide residents

To avoid conflicts and misunderstandings, communication with residents should be clear and educational:

1. Explain the actual legal basis: there is no absolute ban, but rather a rule protecting the common good;
   

2. Highlight the importance of the by-laws and internal regulations: these documents often set out specific rules that complement the law;
   

3. Encourage discussion at general meetings whenever necessary: when the installation has a visual or structural impact on the building;
   

4. Distinguish between internal and external installation: use within the flat is not an issue; it is the visible alteration that requires authorisation;
   

5. Reinforce technical standards and good practice: safe installation minimises the risk of leaks or damage, improving quality of life.

The rule on façades is not intended to prevent the comfort provided by air conditioning. It is a legal mechanism that balances individual rights with the protection of shared assets and the aesthetic harmony of the condominium. For building managers, the challenge is to guide, clarify and handle matters relating to this topic with care and legal clarity — promoting harmonious living and safety without sensationalism.