Applying for a building permit in Poland in 2026

The starting point is the rule set out in the Building Law. Next, the exceptions for a specific structure or works are checked. It cannot be assumed that every small building is erected without a permit. Likewise, the use of lightweight sheet metal or sandwich panels does not create a standalone exemption. The wall and roof material does not replace the legal classification of the investment.

For the extension of an existing structure, the exact scope of changes matters. Replacing sheets, changing the structure and raising the roof are different operations. They may be subject to different requirements. The description of the planned works should be specific enough for the designer and the authority to assess their effects. The general phrase ‘roof renovation’ often does not reflect the actual intention.

The permit application is submitted on form PB-1. The basic attachments include a statement of the right to dispose of the property for construction purposes, the site or land development plan and the architectural-construction plan. The technical plan is not a standard attachment to this application. The scope of documents depends on the investment. Additional arrangements, opinions and decisions may be required.

The plan must correspond to the actual intention and the property’s conditions. If a zoning decision is required, it must be taken into account in the sequence of preparing the investment. Where a local development plan is in force, its provisions are checked. Requirements may also concern the geometry and appearance of the roof. The selected profile or colour should therefore be agreed before ordering.

Notification is a separate procedure, not a shorter permit form. It describes the type, scope, method and date of execution of the works. The attachments depend on the basis of the notification. Some cases require a plan, others appropriate sketches or additional documents. This distinction also matters for structural changes to a single-family house.

In the ordinary notification procedure, as a rule, 21 days must be waited from its delivery if the authority does not raise an objection. There are exceptions, so the deadline must not be transferred mechanically to every case. Sending the letter alone does not give a general right to start works the next day. The effects of a request to supplement the documentation must also be checked.

The application usually goes to the starosta, and in a city with powiat rights to the city president. In statutorily defined cases, the voivode is competent. The authority examines the required documents and the compliance of the intention with the regulations. Deficiencies may require supplementation. The deadline given for the procedure does not guarantee the date of commencement of construction. The course of the case is also influenced by issues requiring an additional ruling.

In practice, a clear description of the investment and consistency of the attachments help. The dimensions, scope of works and property designation should match. When the design changes during the proceedings, the impact of that change on the documentation must be established. Ordering materials in parallel according to an earlier variant may later lead to costly corrections.

For buildings and areas under conservation protection, additional rules apply. They are not limited to agreeing the colour of the covering. The scope of protection must be checked before choosing the procedure for the works. Other special provisions and determinations concerning the property may also be relevant. The exemption provided for a typical investment does not always apply to the same extent.

Do not assume either that a project identical to the neighbouring one requires the same documents. The building’s location, its impact on the surroundings or the legal basis of earlier works may differ. A complete set of documents for the existing building is helpful. Gaps in the archive should be clarified before planning the conversion, rather than leaving them until the acceptance of the new roof.

Before starting, the obligations specific to the given construction must be met, concerning among other things the organisation of the works and the required participants in the process. The approved documentation should be the reference point for contractors. Changes are agreed in the appropriate procedure. The consent of the crew or the material supplier does not replace the designer’s assessment and the required formalities.

The permit expires if construction has not started within three years of the decision becoming final or if it was interrupted for more than three years. This does not mean a three-year limit for every properly conducted construction. Keep the decisions, confirmations and documentation of changes. Before the next stage, check that the basis for the works is still valid, especially if the investment was postponed for a long time.