Real Estate Law

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

REURB (Lei 13.465/2017): what it is, the difference between REURB-S and REURB-E, the Land Regularization Certificate (CRF), and how informal urban settlements become registered property.

REURB: o que é a regularização fundiária urbana e como ela transforma a ocupação em propriedade?
In short

REURB (Urban Land Regularization, Lei 13.465/2017) regularizes informal urban settlements — subdivisions and occupations without registration — incorporating them into the city and granting title to the occupants. There are two categories: REURB-S (social interest) and REURB-E (specific interest). The Municipality conducts the process and issues the Land Regularization Certificate (CRF), which opens the individual property records (matrículas).

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 tackle this problem, the law created a powerful instrument: REURB — Urban Land Regularization. Unlike adverse possession (usucapião), which is individual, REURB is a collective solution conducted by the government. In this guide, you will understand what REURB is, the difference between its categories, what the CRF is, and how the process transforms informal occupation into registered property.

What is REURB?

REURB is the set of legal, urban-planning, environmental, and social measures intended to regularize informal urban settlements and to grant title to their occupants, provided for in Lei 13.465/2017 (art. 9). An “informal urban settlement” is, in short, a settlement with urban characteristics — a subdivision, a housing complex, an occupation — that became consolidated without the proper registration.

The goal is twofold: to incorporate these areas into the city's planning framework (with infrastructure and urban-planning and environmental parameters) and to provide legal certainty to the residents, granting them property title. The procedure is conducted by the Municipality and culminates in a key document, the Land Regularization Certificate (CRF), which, once registered with the Real Estate Registry, opens individual property records (matrículas) for each unit. This is what lifts the neighborhood out of informality and puts it on the registry map.

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 (of social interest): intended for settlements occupied predominantly by low-income populations. Here, the costs are, as a rule, borne by the government, and there is an exemption from registry fees and charges (art. 13 of Lei 13.465/2017).

  • REURB-E (of specific interest): applies to all other cases — occupations by populations that do not qualify as low-income. Here, the costs are, as a rule, borne by the beneficiaries.

It is the Municipality that classifies each settlement into one of the categories (art. 30 of Lei 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 Lei 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 Prosecutor's Office (Ministério Público).

In practice, the Municipalities are the main actors, since they hold the authority to process, approve, and issue the CRF. But the possibility of initiative by residents and associations is significant: an organized community can prompt and drive the regularization of its settlement, even individually, lot by lot.

How does the process work and what is the CRF?

REURB follows phases set out in art. 28 of Lei 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) is the final document: issued by the Municipality, it attests to the urban-planning, environmental, and legal regularity of the settlement and contains the approved project, the undertaking, and, where there is land legitimation or possession legitimation, the list of occupants and the rights granted to them. Once submitted to the Real Estate Registry, the CRF allows a property record (matrícula) to be opened for each unit — transforming informal occupation into registered property. Land legitimation, it is worth noting, is an original form of acquiring property created by the law.

A practical example: the Jardim Esperança subdivision

Jardim Esperança is a subdivision in São Paulo where about 80 families have lived for more than 15 years. The streets and houses are consolidated, but the subdivision was never registered — none of the houses has a property record (matrícula), and the residents, like Mr. Joaquim, have no property title. Without one, they cannot sell, finance, or formally leave the property to their children.

Because it is an occupation predominantly of low income, the settlement is classified by the Municipality as REURB-S. The city hall (also prompted by the residents' association) initiates the process, draws up the regularization project, hears rights holders and abutting neighbors, and approves it. At the end, it issues the CRF, which is registered with the Real Estate Registry — opening an individual property record (matrícula) for each house. Mr. Joaquim, at last, receives the title to his property: he can now sell it, pledge it as collateral, or pass it on to his children, with the security of someone who is, officially, the owner.

The most common (and costly) mistakes

  • Confusing REURB with adverse possession (usucapião). REURB is collective and conducted by the government; adverse possession is individual — each one suits a different scenario.

  • 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 organize collectively. In subdivisions, coordination among residents speeds up and enables the process.

  • Overlooking the environmental aspects. The regularization project must address the environmental and urban-planning issues of the settlement.

Checklist: to start or follow a REURB

  • Check whether your area is an informal urban settlement (consolidated, without registration).

  • 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 Urban Land Regularization, a set of measures provided for in Lei 13.465/2017 to regularize informal urban settlements — subdivisions, housing complexes, and occupations that became consolidated without registration. The goal is to incorporate these areas into the city's planning framework and to grant property title to the occupants. The procedure is conducted by the Municipality and culminates in the Land Regularization Certificate (CRF), which, once registered with the Real Estate Registry, opens individual property records (matrículas) for each unit.

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

REURB-S (of social interest) is intended for settlements occupied predominantly by low-income populations, with costs borne by the government and an exemption from registry fees and charges. REURB-E (of specific interest) applies to all other cases — occupations by populations that do not qualify as low-income — with costs, as a rule, borne by the beneficiaries. It is the Municipality that classifies each settlement into one of the categories (art. 30 of Lei 13.465/2017).

Who can apply for REURB?

Under art. 14 of Lei 13.465/2017, the following parties may apply for and promote REURB: the Federal Union, the States, the Federal District, and the Municipalities; the beneficiaries themselves, individually or collectively, including through residents' associations and cooperatives; the owners, developers, or subdividers; and the Public Prosecutor's Office (Ministério Público). The Municipalities are the main actors, since they hold the authority to process, approve, and issue the CRF. Even the individual initiative of a single resident is possible.

What is the Land Regularization Certificate (CRF)?

It is the final document of REURB, issued by the Municipality, which attests to the urban-planning, environmental, and legal regularity of the settlement. The CRF contains the approved regularization project, the implementation undertaking, and, where there is land legitimation or possession legitimation, the list of occupants and the rights granted to them. Once submitted to the Real Estate Registry, the CRF allows a property record (matrícula) to be opened for each regularized unit — this is what transforms informal occupation into registered property.

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

The Municipality (or another eligible party) initiates REURB, classifies it as REURB-S or REURB-E, and conducts the phases: processing of the application with submissions from rights holders and abutting neighbors, drafting of the regularization project, and approval. At the end, the Municipality issues the CRF, which is registered with the Real Estate Registry, opening the individual property records (matrículas). In São Paulo, land regularization follows Lei 13.465/2017 and municipal legislation. Residents and associations can organize themselves and rely on legal counsel to conduct or follow the process.

Is it worth hiring a lawyer for REURB?

Yes, both for residents and associations and for subdividers and owners. REURB is a technical, multidisciplinary procedure involving urban-planning, environmental, and registry law, as well as dealings with the government. A Real Estate Law attorney in São Paulo advises on the best strategy (category, titling instruments), organizes the documentation, follows the phases before the Municipality and the Real Estate Registry, and protects the interests of those involved through to the registration of the individual property records (matrículas).

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

REURB is one of Brazilian law's most ambitious responses to land informality: instead of regularizing property by property, it addresses the entire settlement, restoring registration and security to communities that lived on the margins of the Real Estate Registry. For the resident, the result is concrete — the title that allows them to sell, finance, and inherit with peace of mind.

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.

Letícia Marques
Written by

Letícia Marques

Founding partner of Falchet e Marques (OAB/SP 428.777). Head of the real estate practice — titling, adverse possession, contracts and litigation — with postgraduate degrees in Real Estate Law (PUC/SP) and Succession Law (PUC-Campinas); a specialist in probate and estate administration.

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