Occupancy Approval

What is occupancy approval (kolaudácia)?

Occupancy approval (Slovak: kolaudácia) is a final legal decision issued by the building authority (stavebný úrad) that grants permission to use a completed building for its intended purpose. It is a mandatory administrative milestone in Slovakia before a structure can be legally occupied or put into service. The approval certifies that the building has been constructed in compliance with all applicable regulations, approved project documentation, and safety standards, and is suitable for the use for which it was permitted.

Unlike preliminary authorizations such as the building permit or building intent decision, occupancy approval is issued only after construction is substantially complete. It represents the building authority's confirmation that the completed work meets all contractual and legal obligations. Without this approval, the building cannot be legally used, regardless of its physical condition.

When is occupancy approval required?

Occupancy approval is mandatory for any residential or non-residential structure that required a building permit under Slovak law. This includes new family homes, apartment buildings, commercial structures, and major renovations or extensions. The requirement applies equally to structures built for the owner's own use and those constructed for sale or lease.

Small structures are exempt from the occupancy approval requirement. Buildings under 25 m² with a height not exceeding 5 meters—such as garden sheds, small garages, or agricultural outbuildings—may be reported to the building authority but do not require formal occupancy approval. Similarly, minor work or repair that does not fundamentally alter the building's use or load-bearing structure may not trigger the requirement. However, any change of intended use or significant renovation of an existing structure typically requires a new occupancy approval.

Note on legal changes (2025): Slovakia's new Building Act (Act 25/2025) took effect on April 1, 2025, significantly reforming the construction approval regime. The occupancy approval process now emphasizes proving the actual state of construction through contemporaneous documentation, rather than simply comparing the finished building to approved plans. Construction projects initiated before April 2025 generally continue under transitional provisions following the previous legal framework, while new projects started after April 1, 2025 follow the reformed procedures. The core requirement—that a building must be approved before legal use—remains unchanged.

What documents and conditions are required?

The building authority requires a comprehensive set of documentation to verify that the completed building is safe and compliant. These include:

• Construction log (stavebný denník) – a detailed record of all construction activities, materials, and inspections conducted during building
• Technical inspection reports – separate certifications for electrical systems, gas installations, plumbing, heating, and chimney systems, issued by qualified inspectors
• Energy efficiency certificate – mandatory for all new residential buildings, demonstrating compliance with building energy regulations
• Geodetic (geometric) survey – an accurate as-built survey showing the final dimensions and position of the structure relative to the property boundaries
• Contractor's compliance statement – confirmation that the building has been constructed according to the approved project design and applicable standards
• Product certificates and waste documentation – proof that materials used meet required standards and that construction waste has been properly disposed of

Physically, the building must meet minimum condition standards: load-bearing structures and roof must be complete, windows and doors installed, all utilities connected, railings installed on stairs and balconies, and proper drainage and wastewater connections established. The completed structure must align precisely with the approved project documentation—any deviations must be documented and justified.

How does the occupancy approval process work?

The process unfolds in five key stages. First, the applicant (typically the owner or their representative) submits a completed application form, along with all required documentation, to the relevant building authority (stavebný úrad). A filing fee of €35 is due at submission (50% discount available for electronic submission via slovensko.sk portal). Second, the building authority notifies all stakeholders—utility companies, neighbors with rights, environmental authorities—at least ten days before the scheduled site inspection. This allows affected parties to file objections or requests.

Third, a building authority inspector conducts a comprehensive on-site inspection. The inspector verifies that the building is constructed as shown in the approved project, checks all safety systems, reviews the technical documentation, and confirms that all required inspections have been completed. The inspection typically takes 1–2 hours for a family home. Fourth, the building authority issues a written decision, typically within 15 days of the inspection. If all conditions are met, the decision grants occupancy approval; if defects are found, it may be refused, requiring remediation and re-inspection. Fifth, both applicant and authority have a 15-day appeal period if either wishes to contest the decision.

How long does occupancy approval take?

The timeline varies by case complexity. For straightforward residential buildings with complete documentation, the building authority has a statutory deadline of 30 days from submission to decision. Complex projects with multiple building components or deviations from the original plan may extend to 60 days. In practice, the most time-consuming phase is documentation preparation, which typically takes 2–6 weeks after construction is physically complete, as inspectors must be scheduled and reports prepared. The total process—from completing construction to receiving final approval—usually takes 2–4 months.

Delays commonly occur if documentation is incomplete or if inspections reveal deficiencies requiring remediation. Each resubmission or re-inspection restarts the statutory timeline. Digitalization efforts have reduced administrative delays; the online portal (slovensko.sk) can reduce processing time and offers a 50% discount on filing fees.

What are the total costs involved?

The occupancy approval process carries both administrative and technical costs. The building authority's administrative fee is €35 for a family home (€50 for commercial properties). Individual technical inspections cost €50–€200 each, depending on system complexity and inspector rates. An energy efficiency certificate typically costs €150–€300. A geodetic (as-built) survey ranges from €300–€700 depending on property size and complexity. For a typical family home, total costs range from €1,300–€2,000 once all components are included. These are separate from construction costs and represent a final step before legal occupancy.

What are the legal consequences of occupancy without approval?

Using a building without occupancy approval is illegal in Slovakia and carries significant consequences. The occupant faces fines and administrative penalties. The building cannot be registered in the real estate cadastre, and property transactions are impossible. Mortgage lenders will not finance properties without valid occupancy approval. Insurance companies typically exclude liability coverage for unlicensed buildings. Additionally, utility companies may refuse to formalize permanent connections, leaving the structure on temporary supply—expensive and unreliable. From a resale perspective, a property without occupancy approval is effectively unmarketable and may be subject to demolition orders if used without authorization.

What happens after occupancy approval is issued?

Once the occupancy decision is final, several administrative steps follow. The owner must register the building in the Slovak Real Estate Cadastre (Katastrálny úrad) within 30 days—a process that typically costs €33–€66. The municipality assigns a permanent property number (číslo popisné) and street designation. The owner must file a property tax declaration (daňové priznanie) by January 31st of the following year to establish tax obligations. Finally, permanent utility connections (electricity, water, gas, internet) must be finalized, and building insurance must be obtained and maintained.

These post-approval obligations are legally binding and failure to complete them can result in municipal penalties or complications with future transactions. However, once all steps are completed, the property is fully legal, transferable, and financeable.