How to Draft Czech Zoning Plan Amendments That Survive Court Review

Legal framework and a municipality’s obligations when amending a zoning plan

The legal basis for preparing a zoning plan and its amendments is regulated by the New Building Act primarily in Sections 93 to 117. The process of amending a zoning plan is governed similarly to the adoption of a new plan; alternatively, a shortened procedure for preparing an amendment may be used, which is widely used in practice for partial adjustments. A municipality that decides to amend its zoning plan must follow a precisely defined framework.

The process begins with a decision of the municipal council to initiate the amendment, which may be adopted either on its own initiative or upon a proposal by an entitled person. Risks already arise at this stage as to whether the proposal contains all required elements and whether the proposer is entitled to submit it.

ARROWS, a Prague-based law firm, regularly handles situations where it is necessary to legally structure the relationship with an investor initiating the amendment. It is very important to set the terms of cooperation—e.g., through a planning agreement—before the process is formally launched.

Preparation phase and internal coordination

After the municipal council decides to initiate the amendment, the next phase is the preparation and approval of the amendment brief. The brief sets the main objectives and requirements for the solution and serves as instructions to the planner as to what the amendment should look like. Formal errors often arise at this stage, where the brief is too vague or, conversely, predetermines the outcome in a way that prevents proper professional assessment.

A key aspect is internal coordination and a clear allocation of responsibility for the process. This role is performed by the planning authority (the “procurer”), which must be a qualified person meeting the statutory education and practice requirements. Many municipalities underestimate communication between the self-government and the planning authority, which leads to delays. ARROWS, a Prague-based law firm, acts as legal support for municipalities and checks whether the brief contains all statutory requirements under Czech legislation.

Compliance with higher-level planning documentation

One of the most common reasons why Czech courts annul zoning plans is a conflict with higher-level spatial planning documentation. In the hierarchy under Czech law, the Territorial Development Plan (ÚRP) ranks highest, followed by the Principles of Territorial Development (ZÚR) at the regional level, and finally the Zoning Plan (ÚP) at the municipal level.

If a municipality proposes an amendment that conflicts with the ZÚR, such an amendment is unlawful. For example, development cannot be placed within a corridor of a supra-regional transport infrastructure project designated by the region if the higher-level documentation does not allow it.

ARROWS, a Prague-based law firm, regularly carries out legal compliance audits and flags conflicts. It often happens that a municipality overlooks an update to the ZÚR or interprets the regional documentation too broadly. Compliance is also ensured through a binding opinion of the superior spatial planning authority.

Establishing the factual situation and the Unified Environmental Opinion

Insufficient establishment of the factual situation in the territory is among the main reasons why zoning plans are annulled by courts in the Czech Republic. This means that the municipality designated areas without verifying the feasibility of their use in practice—for example, the capacity of a wastewater treatment plant or nature protection limits.

In 2026, the institute of the Unified Environmental Opinion (JES) also plays a key role. JES integrates a number of previously separate opinions into a single administrative act for the purposes of permitting projects.

Czech courts require that a municipality have data to support its decisions. If a municipality claims that infrastructure is sufficient, it must support this with a statement from the network operator or an expert study. The process includes an analysis of the current situation, verification of capacities with network operators, and, where applicable, an environmental assessment.

Procedural steps and the public hearing

The new Building Act has significantly strengthened digitalisation, and an amendment to a zoning plan is discussed using the National Geoportal for Spatial Planning (NGÚP) in the Czech Republic. The public hearing on the draft amendment is governed by Section 98 et seq. of the new Building Act (NSZ), and the draft must be published by public notice.

The draft amendment must be made available for inspection for at least 30 days from the date of delivery of the public notice. Within this period, a public hearing is held with the designer’s presentation, where mistakes are often made regarding deadlines and the method of publication.

Czech courts are uncompromising when it comes to informing the public. If a citizen did not have a real opportunity to ознакомиться themselves with the draft—for example due to incomplete documentation on the website—this is a reason for annulment.

Rights of the public

The Building Act distinguishes between comments, which anyone may submit, and objections, which may be submitted only by affected persons. The municipal council must decide on objections, and this decision must be properly reasoned. It is not sufficient to merely state a rejecting position; it is necessary to explain why the public interest prevailed over the owner’s interest.

Reasoning for the amendment

Under Section 100 of the new Building Act (NSZ) and the Czech Administrative Procedure Code, a measure of a general nature—such as an amendment to a zoning plan—must be reasoned. The case law of the Supreme Administrative Court sets high requirements for the reasoning. The document must contain the reasons for the operative part, the supporting documents, considerations on how objections were addressed, and an assessment of compliance with regulations under Czech law.

It is a mistake when a municipality provides only a formal statement of compliance with the law. Properly, it should state why the amendment is necessary, what analyses support it, and how it connects to existing development or infrastructure. The attorneys of ARROWS, a Prague-based law firm, assist municipalities with drafting the reasoning for decisions on objections so that it is legally robust. A proportionality test is carried out, examining whether the interference with rights is reasonable.

Formal preparation and digitalisation

An amendment to a zoning plan must be prepared in accordance with the decree on spatial planning documentation. The new Building Act and implementing regulations require preparation in a standardised format that is machine-readable for NGÚP.

Importantly, the result of the amendment must also be the consolidated wording of the zoning plan after the amendment. The amendment is prepared, discussed, and issued to the extent of the amended parts, but for clarity and legal certainty a “legal state” is created, which includes the original plan and the amendment. A frequent mistake is inconsistency between the textual and graphical parts or the use of an outdated map base. Uncertainty of boundaries on the ground is a legitimate reason for a court in the Czech Republic to annul the plan.

Most common mistakes in practice and how to avoid them

The legal team of ARROWS, a Prague-based law firm, has identified the following recurring mistakes:

• “Salami-slicing” and circumventing SEA: The municipality attempts to split a major amendment into several small ones to avoid environmental impact assessment. Courts penalise this approach and require a cumulative assessment of related amendments.
• Omission of relevant authorities: The municipality forgets to approach one of the relevant authorities, such as the public health authority or the mining authority. A missing binding opinion makes the entire amendment unlawful under Czech legislation.
• Ignoring objections or addressing them only formally: Councillors often rely on the designer and do not read the reasoning for decisions on objections. However, the reasoning must respond to the actual substance of the objections, not merely reject them formally.
• Failure to comply with publication deadlines: Posting on the official notice board for one day less than required by law, or a non-functioning link on the website, is a common formal error. Even such a mistake can invalidate a process that has taken years.

Judicial review and the five-step algorithm

When reviewing a measure of a general nature, the Supreme Administrative Court follows an established algorithm. The court examines the authority of the body, the body’s competence, compliance with the procedural steps, substantive compliance with the law, and proportionality of the interference. If the amendment fails at any step, the court annuls it. The most frequent breaking point is proportionality—i.e., whether the interference with owners’ rights is proportionate to the pursued public interest.

Roles and responsibilities of the actors

In the process of amending a zoning plan, each stakeholder has an irreplaceable role. The commissioning authority is responsible for procedural correctness and must have the relevant qualifications. The planner is responsible for the professional urban-planning accuracy and completeness of the documentation, while the designated councillor acts as a liaison between the municipality’s leadership and the experts.

The attorneys of ARROWS, a Prague-based law firm, recommend that the designated councillor remain in regular contact with the municipality’s legal counsel. This applies in particular when addressing and settling objections.

Digitalisation as the 2026 standard

Building Act No. 283/2021 Coll. introduced full digitalisation, and all spatial planning documentation must be uploaded to the National Geoportal for Spatial Planning. For municipalities in the Czech Republic, this means an obligation to ensure outputs in standardised formats, which increases transparency for residents and investors alike.

A further new feature is integration with the Builder’s Portal, where zoning regulations for a specific plot can be verified online. This places significant pressure on data accuracy, as any error in the zoning plan becomes immediately visible.

Conclusion

An amendment to a zoning plan is a process that, in 2026, is digitalised and standardised, yet still full of legal pitfalls under Czech law. Every step—from the assignment, through consultations, to the reasoning—must be carried out carefully; otherwise, there is a risk of judicial review in Czech courts and annulment. The attorneys of ARROWS, a Prague-based law firm, know how to avoid these risks.

The key takeaway is not to underestimate the reasoning and procedural details. High-quality preparation and legal review throughout the process is cheaper than losing a court dispute and having to repeat the amendment.

If you are not sure whether your procedure is correct, contact us at consultation@arws.cz. We are insured for professional liability with a limit of CZK 400 million and have experience with dozens of municipalities across the Czech Republic.

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