REURB: what is urban land regularization and how does it turn occupation into property?

Need to regularize your settlement? See how we act as REURB lawyers in São Paulo, from categorisation to registration.

In every Brazilian city there are subdivisions, housing complexes, and entire neighborhoods where families have lived for decades but which were never registered. The houses exist, the streets exist, life happens — but, at the Real Estate Registry, those units have no property record (matrícula), and the residents have no property title. This is what is known as land informality, which affects millions of properties.

To address this problem, the law created REURB — Urban Land Regularization, a territorial procedure generally conducted by the municipality and available on individual or collective application. Its distinction from usucapião (adverse possession) is not simply collective versus individual: Brazilian law also recognizes collective adverse possession. This guide explains the categories, the CRF and the instruments available for recognizing occupants’ rights.

What is REURB?

REURB combines legal, planning, environmental and social measures to regularize informal urban settlements and recognize occupants’ rights (art. 9 of Law 13.465/2017). A settlement may be unauthorized, irregular or lack proper titles for other reasons. A consolidated settlement has a separate definition under art. 11, considering the difficulty of reversing occupation, its duration, buildings, streets and public facilities; consolidation is not synonymous with any informal status.

The goal is twofold: integrate the area into urban planning, with infrastructure and environmental safeguards, and improve legal certainty for occupants. The appropriate instrument may confer ownership or another right. The municipality issues the Land Regularization Certificate (CRF); its registration allows individual property records and the relevant rights to be entered, without dispensing with outstanding project obligations.

What is the difference between REURB-S and REURB-E?

The law provides for two categories, according to the profile of the settlement:

• REURB-S (social interest): for settlements predominantly occupied by low-income residents, as classified by the competent authority. Article 33 assigns the project and necessary essential infrastructure to the municipality or Federal District, while allowing eligible parties to undertake them at their own expense. Fee exemptions for the registration acts listed in art. 13, §1 do not exempt every tax, technical expense or private legal fee.

• REURB-E (specific interest): covers the other eligible cases. It is generally commissioned and funded by potential beneficiaries or private applicants. Public land has special rules, including possible municipal funding with later recovery of costs. The approved project must assign responsibilities.

It is the Municipality that classifies each settlement into one of the categories (art. 30 of Law 13.465/2017), analyzing the socioeconomic profile of the occupation. This classification matters because it defines who pays and which benefits apply — and, for that reason, it tends to be a sensitive point in the process.

Who can apply for REURB?

REURB does not depend on the city hall alone: art. 14 of Law 13.465/2017 lists several parties eligible to apply for and promote it:

• The Federal Union, the States, the Federal District, and the Municipalities (directly or through entities of the indirect administration).

• The beneficiaries themselves, individually or collectively, including through residents' associations and cooperatives.

• The owners, subdividers, or developers.

• The Public Defender’s Office (Defensoria Pública), acting for beneficiaries in need, and the Public Prosecutor’s Office (Ministério Público).

Municipalities generally have authority to process, approve and issue the CRF, subject to special statutory situations. Residents and associations may initiate an application and advance the work, but cannot grant approval or assume each lot can be processed independently of the settlement’s project.

How does the process work and what is the CRF?

REURB follows phases set out in art. 28 of Law 13.465/2017: the application and the initiation; the administrative processing, with a deadline for submissions by rights holders and abutting neighbors; the drafting of the land regularization project (with its urban-planning and environmental aspects); the approval by the Municipality; and, at the end, the issuance of the CRF and its registration with the Real Estate Registry.

The Land Regularization Certificate (CRF) concludes the administrative stage and combines the approved project and implementation commitments, with occupants and rights listed where required. It supports property records and registration of the relevant rights; it does not certify that all infrastructure is complete. Legitimação fundiária is an original acquisition of ownership, requiring, among other conditions, a consolidated settlement existing by December 22, 2016. Legitimação de posse recognizes possession, is unavailable for public property and has separate requirements for conversion into ownership. The 2016 cutoff does not automatically apply to every REURB instrument.

A hypothetical example: the Jardim Esperança subdivision

Imagine Jardim Esperança, a São Paulo subdivision where about 80 families have lived for more than 15 years but lack individual property records. Residents such as Mr. Joaquim have inadequate documentation, complicating transactions and estate planning. This does not eliminate possible possessory or inheritance rights, which require separate analysis. This is a hypothetical example, not a reported outcome of the firm.

If the settlement meets the requirements and is predominantly occupied by low-income residents, it may be classified as REURB-S. The residents’ association can apply, followed by the project, studies, interested parties’ participation and competent approval. The CRF can then be submitted for registration and individual records. Joaquim’s rights depend on the chosen instrument and his eligibility; full ownership, financing or unrestricted sale is not guaranteed.

The most common (and costly) mistakes

• Confusing REURB with usucapião. They are different instruments; individual or collective participation alone is not the distinction, because collective adverse possession also exists.

• Waiting only on the city hall. Residents and associations can prompt and drive REURB, including individually.

• Ignoring the classification (S or E). It defines costs and benefits; following this stage is important.

• Failing to coordinate interested parties. Organizing documents and representatives may facilitate the project, but cannot replace public decisions or guarantee speed.

• Overlooking environmental issues and risks. Protected areas, infrastructure, contamination or safety risks may require studies, specific measures or resettlement; not every occupation can be regularized.

Checklist: to start or follow a REURB

• Check whether the area is an informal urban settlement and which consolidation, date and feasibility requirements apply to the intended instrument.

• Gather possession and occupation documents (bills, receipts, length of residence).

• Identify the likely category (REURB-S or REURB-E) and the eligible parties.

• Get organized with the residents' association, if there is one, or create one.

• Reach out to the Municipality and follow the phases of the process.

• Rely on a Real Estate Law attorney to guide the strategy and protect your interests through to registration.

Frequently asked questions about REURB

What is REURB?

REURB is the set of legal, planning, environmental and social measures under Law 13.465/2017 for integrating informal settlements and recognizing occupants’ rights. The municipality generally conducts the procedure and issues the CRF, whose registration can individualize units and record the rights granted. Not every form of titling confers immediate ownership.

What is the difference between REURB-S and REURB-E?

REURB-S concerns predominantly low-income settlements, as classified by the competent authority, with public responsibilities for the project and infrastructure and exemptions for specific registry acts. REURB-E covers other cases, generally funded by potential beneficiaries or private applicants, subject to special statutory rules. There is no universal exemption from every expense or tax.

Who can apply for REURB?

Article 14 covers public entities, beneficiaries individually or collectively and eligible organizations, owners, subdividers and developers, the Public Defender’s Office for beneficiaries in need, and the Public Prosecutor’s Office. Eligibility to apply does not give private applicants the administrative authority to approve the project or issue the CRF.

What is the Land Regularization Certificate (CRF)?

It is the document issued at the end of the administrative stage, comprising the approved project, implementation commitments and, where required, occupants and rights granted. Registration enables property records and entries of the relevant rights. The CRF does not necessarily establish that all infrastructure is complete or automatically convert possession into ownership.

How does REURB work for an irregular subdivision in São Paulo?

An eligible party applies and the competent authority decides on initiation and classification. Administrative processing, participation, studies, the project, corrections and a decision follow. If approved, the CRF is issued for registration. In São Paulo, Law 13.465/2017, its regulations and local rules apply. An association cannot approve the project merely because it submitted the application.

Is it worth hiring a lawyer for REURB?

Legal counsel can advise residents, associations, subdividers and owners on titles, eligibility, responsibilities and legal instruments, and follow the municipal and registration stages. Lawyers coordinate with technical professionals without replacing their work or guaranteeing approval. Not every REURB application requires a privately retained lawyer, and potential conflicts between interested parties must be respected.

From informality to title: REURB brings the registry back to the neighborhood

REURB provides a way to address a settlement’s territorial informality and titling together, coordinating units, roads, infrastructure, environmental issues and rights. Its usefulness depends on feasibility and the instrument’s requirements. Not every occupation can be regularized; registration does not guarantee financing or remove transfer restrictions.

Because it is a collective, technical process tied to the government, REURB benefits greatly from organization (residents' associations) and legal guidance — to choose the right strategy, follow the phases, and protect the interests of those involved.

At Falchet e Marques Sociedade de Advogados, a firm in São Paulo (Av. Paulista), we work in land regularization and property title regularization — advising residents, associations, subdividers, and owners on conducting and following REURB, from strategy through to the registration of the property records (matrículas). If your neighborhood or subdivision is still informal, it is worth understanding the path of land regularization.

Talk to our team on WhatsApp: +55 11 95901-1854 — and learn how to regularize your settlement through REURB.