Construction Permit in Lithuania

AT A GLANCE

Construction, reconstruction, and demolition of buildings above the minor works threshold in Lithuania requires a building permit (statybos leidimas) — a legal requirement that applies to both Lithuanian and foreign-owned entities.
Permits are issued through INFOSTATYBA, Lithuania’s national electronic building permit system, managed by the State Territorial Planning and Construction Inspectorate (VTPSI).
The permit process has three stages: confirming land use plan compliance; preparing certified design documentation by a licensed designer; and submitting the INFOSTATYBA application.
Construction without a permit constitutes illegal construction (savavališka statyba) — a criminal offence in Lithuania that can result in fines up to €6,000 and a demolition order regardless of the quality or completion of the structure.
We advise developers and investors on building permit requirements, coordinate with licensed designers, manage the INFOSTATYBA application process, and assist with legalisation of existing structures built without permits.

Short answer

A construction permit in Lithuania is the official authorisation issued through INFOSTATYBA — Lithuania’s national building permit information system — confirming that the proposed construction, reconstruction, or demolition complies with the applicable territorial planning and building regulations. Most building projects above the minor works threshold require a permit before any works begin. The permit process involves three stages: land use and planning confirmation, certified design documentation preparation, and the INFOSTATYBA application reviewed by VTPSI. We coordinate the full permit process — from initial planning assessment and designer introduction through to permit issuance and the post-construction completion act.

The Legal Framework for Construction in Lithuania

Construction in Lithuania is regulated by the Law on Construction (Statybos įstatymas), the Technical Regulation on Construction (STR series), and the territorial planning system established by the Law on Territorial Planning. The State Territorial Planning and Construction Inspectorate (Valstybinė teritorijų planavimo ir statybos inspekcija prie Aplinkos ministerijos — VTPSI) is the national authority for building permits and construction supervision.

All building permit applications in Lithuania are submitted, reviewed, and issued through INFOSTATYBA — an integrated electronic system that connects applicants, design organisations, VTPSI inspectors, municipalities, and utility providers. INFOSTATYBA tracks every stage of the permit process and maintains a public database of all building permits issued in Lithuania. The system was introduced to reduce permit processing times and increase transparency — it replaces the paper-based system that existed before 2014.

The consequences of building without a permit

Illegal construction (savavališka statyba) — defined as construction that begins without a permit or that deviates materially from the approved design — is a criminal offence in Lithuania under the Code of Administrative Offences and the Criminal Code. The consequences depend on the severity: administrative fines for smaller violations range from €1,500 to €6,000 for legal entities. For serious violations, criminal liability can apply. More importantly, the VTPSI has the authority to issue a demolition order requiring the owner to demolish the illegally constructed structure at their own expense — and the order can be enforced regardless of the structural quality or completion of the building. Retrospective legalisation is possible in some cases but is more expensive and less certain than obtaining the permit before building.

Types of Construction Permit and When Each Is Required

Lithuanian construction regulations distinguish between several categories of works — each with different permit requirements depending on the scale, nature, and impact of the construction. Understanding which category applies to a specific project determines the correct permit type and documentation requirements.

New Build Permit (Naujosios statybos leidimas)

When required: New construction of any building — residential, commercial, industrial, or infrastructure — above the minor works threshold. Applies to any new structure with foundations.

Key documents: Territorial planning compliance confirmation; certified architectural and structural design documentation; engineering specifications; site survey; environmental assessment where required.

Typical timeline: 30–60 days (simple); 60–120 days (complex or in heritage zones)

Reconstruction Permit (Rekonstravimo leidimas)

When required: Major modifications to an existing building that change its volume, structure, engineering systems, or functional classification. Includes extensions, additional floors, and structural alterations.

Key documents: Existing building documentation; certified design for the reconstruction; engineering surveys; specialist reports (structural, fire safety) where required.

Typical timeline: 20–45 days (standard); 45–90 days (complex or heritage)

Major Repair Permit (Kapitalinio remonto leidimas)

When required: Significant repair or renovation of an existing building that affects load-bearing elements, engineering systems, or external facade — but does not change the building's volume or principal classification.

Key documents: Existing building documentation; scope of works description; specialist reports on affected structural or engineering elements.

Typical timeline: 15–30 days

Change of Use Permit (Paskirties keitimo leidimas)

When required: Changing the principal purpose of a building or part of a building — for example, converting an office building to residential use, or a warehouse to retail. Requires confirmation that the new use is permitted under the territorial plan.

Key documents: Territorial planning confirmation for the new use; technical assessment of the existing building's compliance with the requirements for the new use; certification of compliance.

Typical timeline: 20–40 days

Demolition Permit (Griovimo leidimas)

When required: Demolition of a building or structure above the minor works threshold. Demolition of structures that may contain hazardous materials (asbestos, lead paint) requires specialist assessment before and during demolition.

Key documents: Building registration extract; proof of ownership or authorisation to demolish; demolition plan; hazardous materials assessment where relevant; utility disconnection confirmations.

Typical timeline: 15–30 days

 Minor works — no permit required

Not every construction activity requires a permit. Lithuanian regulations distinguish between works requiring a permit and minor works (Nesudėtingieji statiniai ir statybos darbai) that can be carried out without a permit or with a simplified notification. Minor works typically include: small outbuildings below defined size thresholds (garages, sheds); internal renovation not affecting structural elements; routine maintenance and decoration; and small landscaping structures. The thresholds for minor works are defined in STR 1.01.08:2002 and are specific to building category and location. We confirm whether a specific project requires a permit or qualifies as minor works before any planning begins.

The Three-Stage Building Permit Process

Every building permit application in Lithuania follows a defined three-stage sequence. Each stage produces a specific output that forms the basis for the next stage. Attempting to shortcut the sequence — for example, submitting the INFOSTATYBA application before territorial planning compliance is confirmed — results in rejection and a restart.

Stage 1: Territorial planning compliance

Before any design work begins, the intended construction must be confirmed to be consistent with the territorial planning documents applicable to the site. Lithuania has a hierarchical system of territorial plans: the national spatial plan sets broad parameters; county spatial plans and municipal master plans (Bendrasis planas) define land use zones and permitted uses; and detailed plans (Detalusis planas) — where they exist — provide site-specific guidance including permitted building height, density, setbacks, and architectural requirements.

The territorial planning check involves: identifying the land use category applicable to the site; confirming that the intended construction is a permitted use in that category; checking whether a detailed plan exists for the site; and — where the construction is in a location subject to special conditions (protected zones, coastal areas, cultural heritage areas) — obtaining the opinions of the relevant specialist authorities. In Vilnius, Kaunas, and Klaipėda, many sites in or near the historic centre are subject to the oversight of the Cultural Heritage Department, which must approve any changes to the external appearance of buildings in protected areas.

Stage 2: Design documentation preparation

Once territorial planning compliance is confirmed, the design documentation for the construction is prepared by a licensed design organisation. Lithuanian law requires that design documentation for permitted construction works be prepared and certified by a Responsible Designer (Atsakingasis projektuotojas) — a licensed professional holding a valid design certificate (atestatas) issued by the Lithuanian Chamber of Architects (for architectural design) or the Lithuanian Chamber of Civil Engineers (for structural and engineering design).

The design documentation package for a new build or major reconstruction typically includes: an architectural project (site plan, floor plans, elevations, sections, and specifications); a structural project (foundation design, structural calculations, and reinforcement drawings); engineering projects (HVAC, electrical, plumbing, fire safety systems); and, where required, specialist reports (geotechnical survey, environmental impact assessment, noise assessment). Each project section must be certified by the relevant Responsible Designer and, where required, reviewed by the relevant specialist authority before submission.

Stage 3: INFOSTATYBA application

The complete design documentation is submitted through the INFOSTATYBA portal. The VTPSI reviews the application against the applicable legal requirements — territorial planning compliance, design documentation completeness, and technical compliance with the STR building regulations. During the review period, VTPSI may request clarifications or supplementary information. The statutory review period is 10 business days for simple residential and 20–30 business days for complex commercial or heritage-sensitive projects, though in practice the timeline depends on the completeness of the submission and any queries raised by reviewing authorities.

 INFOSTATYBA — the digital permit portal

INFOSTATYBA (www.infostatyba.lt) is Lithuania’s national building permit information system, operated by the VTPSI under the Ministry of Environment. All building permit applications in Lithuania are submitted and managed through this system. The portal requires the applicant to register and to have a qualified electronic signature (QES) for document submission. Design organisations submit their certified design documentation through INFOSTATYBA, and each reviewing authority — VTPSI, the municipality, utility companies, fire safety, heritage protection — records its assessment and approval through the system. The permit is issued electronically through INFOSTATYBA.

Design Documentation: What Is Required and Who Must Prepare It

The design documentation for a building permit is not simply architectural drawings — it is a set of technical documents prepared by licensed professionals, certified to specific Lithuanian regulatory standards (STR — Statybos techninis reglamentas), and submitted in a defined format through INFOSTATYBA. Understanding the design documentation requirements before engaging a designer prevents misalignment between what the designer produces and what the VTPSI requires.

The Responsible Designer — Lithuania’s licensing requirement

Every building permit application in Lithuania must include design documentation certified by a Responsible Designer — a licensed professional holding a valid design certificate issued by the Lithuanian Chamber of Architects or the Lithuanian Chamber of Civil Engineers, as appropriate to the design discipline. The Responsible Designer bears personal legal responsibility for the compliance of their certified design with the applicable STR standards and the conditions of the territorial plan.

Foreign design firms can prepare design documentation for Lithuanian projects but the documentation must be certified by a Lithuanian licensed Responsible Designer before it can be submitted through INFOSTATYBA. This means foreign architects and engineers typically work in collaboration with a Lithuanian licensed professional who reviews the design for compliance with Lithuanian regulations and certifies it. We coordinate introductions to Lithuanian licensed designers for foreign investors and developers who have their own design teams.

What the design documentation must contain

Explanatory note — description of the project, its purpose, the construction method, and compliance with applicable requirements
Site plan — showing the position of the building on the plot, distances to boundaries, access routes, and existing structures
Floor plans — at scale, showing all rooms, dimensions, and primary design elements for each floor
Elevations — external appearance of the building from all four directions, at scale
Sections — cross-sections through the building showing floor heights, structural elements, and roof construction
Structural drawings and calculations — foundation design, structural frame, load calculations; prepared by a licensed structural engineer
Engineering system designs — HVAC, electrical, plumbing, fire detection and suppression, as applicable
Energy performance calculations — confirming compliance with the energy efficiency requirements of STR 2.01.02:2016
Fire safety project — for buildings above defined size or occupancy thresholds, reviewed and approved by the Fire and Rescue Department
Geotechnical survey report — soil investigation results; required for most new build projects

 Heritage zones and the Cultural Heritage Department

Construction in or adjacent to protected cultural heritage areas — which include large parts of Vilnius Old Town, Kaunas interwar architecture zones, and coastal historic areas — requires additional coordination with the Cultural Heritage Department (Kultūros paveldo departamentas prie Kultūros ministerijos). The Cultural Heritage Department must review and approve any design that affects the external appearance of protected buildings or their visual setting. In Vilnius Old Town (a UNESCO World Heritage Site), the approval requirements are particularly strict and can significantly extend the design and permit timeline. We identify heritage zone constraints at the earliest stage of the planning process to prevent design work that cannot subsequently be approved.

Post-Permit Obligations: During and After Construction

Construction supervision

Once the building permit is issued and construction begins, the project is subject to both mandatory technical supervision and mandatory author supervision. Technical supervision (Techninė priežiūra) is mandatory for all permitted construction — a qualified technical supervisor must monitor the construction works to confirm that they are being carried out in accordance with the approved design documentation. Author supervision (Autoriaus priežiūra) — visits by the Responsible Designer to confirm that the construction matches the design — is mandatory for buildings above certain thresholds and recommended for all significant projects. Deviations from the approved design discovered during supervision must be documented and — where they are material deviations — may require a permit variation before continuing.

Permit variations

If during construction the design needs to change — due to unforeseen site conditions, client requests, or material supply issues — and the changes are material (affecting the building’s volume, external appearance, structural system, or compliance with the conditions of the permit), a permit variation must be obtained before the changes are implemented. Minor technical changes that do not affect the permit conditions can be documented in the construction diary and the as-built drawings without a formal variation. We advise on the threshold between minor changes (no variation required) and material changes (variation required) as questions arise during construction.

Completion act (statybos užbaigimo aktas)

When construction is complete, a completion act (statybos užbaigimo aktas) must be prepared and submitted through INFOSTATYBA. The completion act confirms that the completed building matches the approved design and that all required technical systems are functioning correctly. The completion act is prepared by the Responsible Designer and the technical supervisor, and must be submitted before the building is registered with the Centre of Registers as a completed structure. A building that has been physically completed but does not have a completion act is not legally registered — it cannot be sold, mortgaged, or formally occupied without this document.

Building registration

Following the completion act, the building must be registered with the Centre of Registers (Real Estate Register). Registration requires: the completed completion act, an inventory of the building (prepared by a licensed surveyor), and the owner’s title to the land. Registered buildings are assigned a unique register number and appear in the public real estate register. The registration is required for any subsequent legal transaction involving the building — sale, lease, mortgage, or inheritance. We advise on the building registration process and coordinate with licensed surveyors as part of our post-construction support service.

Illegal Construction: Consequences and Legalisation

Illegal construction — building or significantly modifying a structure without the required permit — is a persistent issue in Lithuania, and the VTPSI and municipal authorities actively investigate and act on unauthorised construction. For investors who have purchased land or buildings with existing structures, understanding whether those structures have valid permits is essential due diligence.

Consequences of illegal construction

The consequences of building without a permit in Lithuania are significantly more serious than in many other jurisdictions:

Administrative fines — up to €6,000 for legal entities; up to €2,000 for individuals; applied per violation
Demolition order — the VTPSI can order the demolition of an illegally constructed structure regardless of its structural quality or the investment made; the owner bears the demolition cost
Criminal liability — for serious violations (large-scale illegal construction, construction in protected zones) criminal charges under the Criminal Code can apply to responsible directors
Restriction on sale and mortgage — an illegally constructed structure cannot be registered in the Real Estate Register and therefore cannot be legally sold or mortgaged until regularised
Utility connection refusal — utilities (electricity, gas, water) will not be permanently connected to an unregistered building

Legalisation of existing illegal construction

It is possible to retrospectively legalise some illegally constructed structures through a formal legalisation process — but only where the structure would have qualified for a permit at the time it was built under the territorial planning conditions then applicable. The legalisation process is more expensive and less certain than obtaining a permit before building: it requires a retroactive territorial planning compliance assessment, full design documentation (as-built drawings certified by a licensed designer), and VTPSI approval. The VTPSI may require structural surveys and safety assessments as conditions of legalisation. Structures built in violation of zoning rules — for example, in protected zones or exceeding permitted density — cannot be legalised and must be demolished.

 Due diligence for property purchases

Before purchasing property in Lithuania — particularly residential buildings, warehouses, or commercial premises that have been extended, converted, or significantly modified — it is essential to verify that all structures on the site have valid building permits and completion acts. We check permit status for any property through the INFOSTATYBA database and the Real Estate Register as part of our pre-purchase legal due diligence service. Purchasing a property with illegal construction without being aware of it transfers the demolition liability to the buyer.

Building Permit Reference: Works by Category

Works Type	Permit Required	Key Documents	VTPSI Review Period
New residential building (house)	Yes — new build permit	Architectural + structural + engineering design	10–20 business days
New commercial building	Yes — new build permit	Full design package incl. fire safety; energy performance	20–30 business days
New industrial building / warehouse	Yes — new build permit	Full design package; environmental assessment may apply	20–30 business days
Extension adding floor area or volume	Yes — reconstruction permit	Existing building docs + design for extension	20–30 business days
Structural alterations (load-bearing walls)	Yes — major repair or reconstruction	Structural engineer’s report + design	15–20 business days
Change of use (residential to commercial)	Yes — change of use permit	Territorial planning check + compliance assessment	15–20 business days
External facade change (windows, cladding)	Yes (in most cases) — major repair	Architectural design; heritage approval if applicable	10–15 business days
Internal renovation (non-structural)	Usually no — notification may be required	Written description of works; minor works declaration	No review (notification only)
Demolition of building above threshold	Yes — demolition permit	Building extract; hazardous materials survey if needed	10–15 business days
Small outbuilding / garden shed (under threshold)	No — minor works	Minor works declaration submitted to municipality	No review
Legalisation of existing illegal construction	Legalisation process (VTPSI)	As-built design; territorial planning compliance; structural report	30–60 business days

Construction Permit Advisory Service Pricing

Our construction permit advisory services cover the management and coordination of the permit process — from initial planning assessment and designer introduction through to INFOSTATYBA submission and permit collection. We do not prepare the design documentation ourselves (which must be prepared by licensed design organisations) but we coordinate with designers, manage the INFOSTATYBA process, and liaise with VTPSI and other reviewing authorities throughout.

Service	Price
Construction permit eligibility assessment — Confirming whether a permit is required; identifying the correct permit type; territorial planning overview	€600
Territorial planning compliance check — Confirming permitted uses, density limits, setbacks, and any special conditions for the specific plot	€800
INFOSTATYBA application management — simple residential — Coordinating designer documentation, INFOSTATYBA submission, VTPSI correspondence, and permit collection	€1,500
INFOSTATYBA application management — commercial or industrial — Managing multi-authority review process; VTPSI, fire safety, utility providers, and municipality coordination	€1,800
Heritage zone coordination (Cultural Heritage Department) — Coordinating Cultural Heritage Department review and approval for projects in or adjacent to protected areas	€1,100
Permit variation management — Managing INFOSTATYBA variation application for material design changes during construction	€800
Completion act coordination — Coordinating the preparation and submission of the statybos užbaigimo aktas through INFOSTATYBA	€800
Building registration coordination (Real Estate Register) — Coordinating building registration following the completion act; surveyor introduction	€700
Legalisation of existing illegal construction — assessment — Assessing legalisation feasibility; territorial planning compliance check; estimated cost and timeline	€1,300
Legalisation process management — Full legalisation process management; quoted after feasibility assessment	On request
Pre-purchase permit status check (due diligence) — INFOSTATYBA and Real Estate Register check; written confirmation of permit and completion act status	€600
Licensed designer introduction — We introduce qualified Lithuanian licensed designers at no additional charge — designer fees are separate	€0

 Designer fees are separate

Our service fees cover the permit management and coordination process. The fees charged by the licensed design organisation for preparing the architectural, structural, and engineering design documentation are separate — they are agreed directly between the client and the design organisation and vary based on the size and complexity of the project. We introduce designers appropriate to the project type and scale and can advise on typical design fee ranges for specific project categories.

Frequently Asked Questions

The total timeline from starting the process to permit issuance depends on the project type, the complexity of the design, the territorial planning conditions, and the completeness of the submission. For a straightforward residential new build on a plot with a confirmed detailed plan, the realistic timeline is: 2–4 weeks for the territorial planning check; 6–12 weeks for the design documentation preparation; and 2–4 weeks for VTPSI review — a total of approximately 3–5 months from start to permit. For complex commercial projects, projects in heritage zones, or projects requiring environmental impact assessment, the timeline can extend to 6–12 months or more. We provide a project-specific timeline estimate at the initial assessment stage.

A foreign architect can prepare architectural design for a Lithuanian project, but the design documentation must be certified by a Lithuanian licensed Responsible Designer before it can be submitted through INFOSTATYBA. The Responsible Designer — who must hold a valid design certificate from the Lithuanian Chamber of Architects or the Lithuanian Chamber of Civil Engineers — takes legal responsibility for the design’s compliance with Lithuanian regulations. In practice, foreign design firms work in collaboration with a Lithuanian licensed professional who reviews the design for compliance with Lithuanian STR standards and certifies the documentation. We coordinate introductions to Lithuanian licensed designers who have experience working with international design firms.

Building permit status can be checked through two systems. INFOSTATYBA (www.infostatyba.lt) has a publicly accessible database of all building permits and completion acts issued in Lithuania since the system was introduced in 2014. For older buildings, the building’s permit and completion act status can be checked through the municipality’s records or through the Real Estate Register (GIS.lt — the national cadastre and register). A building that appears in the Real Estate Register as a registered structure with a valid building number has typically completed the permit and completion act process. We conduct this check for any property acquisition as part of our pre-purchase legal due diligence service.

A detailed plan is a site-specific territorial planning document that defines the precise building conditions for a specific plot — including maximum building footprint, height, density, setbacks from boundaries, architectural requirements, and infrastructure obligations. Not every plot has a detailed plan. In Vilnius and other major cities, detailed plans exist for most plots in developed urban areas. For plots in less developed areas, agricultural land being converted to construction use, or large development sites, a new detailed plan may need to be prepared before a building permit can be issued. Preparing a new detailed plan is itself a regulatory process — it requires municipal approval and public consultation, and can take 6–18 months. We identify whether a detailed plan exists or is required as part of the territorial planning compliance check.

Converting a warehouse to residential use is a change of use — the warehouse’s registered purpose changes from industrial/commercial to residential. This requires a change of use permit (paskirties keitimo leidimas), and the building must be shown to comply with the technical requirements for residential use — insulation, ventilation, sound insulation, fire compartmentation, energy efficiency, and accessibility standards. If the conversion involves structural changes (removing walls, adding windows, changing the roof), a reconstruction permit is also required. The converted building must be re-registered with the Real Estate Register with the new use classification. We advise on the complete permit pathway for change-of-use conversions and coordinate with licensed designers experienced in residential conversion projects.

Demolition of existing structures on the site requires a demolition permit if the structures exceed the minor works threshold — it cannot be started using the anticipated main building permit. Site clearance that involves only vegetation removal and minor grading typically does not require a permit. Foundation excavation and other preparatory works that form part of the construction of the new building cannot begin before the building permit is issued. Starting significant excavation before the permit is issued is treated as commencing construction without a permit — illegal construction. We advise on the exact threshold between preparatory works that are permitted and construction works that require the permit to be in place.

An energy performance certificate (energinio naudingumo sertifikatas) is a document certifying the energy efficiency class of a building, based on the calculated or measured energy consumption. For new construction and major reconstruction, the design documentation must include energy performance calculations demonstrating compliance with the minimum energy efficiency requirements of STR 2.01.02:2016. The energy performance certificate itself is typically prepared after construction is complete — it confirms the as-built energy performance. The certificate is required when a building is sold or rented and must be provided to the buyer or tenant. For new buildings, the energy performance class must be at least Class B (or higher for public buildings). We advise on energy performance requirements as part of the design documentation coordination.

Ready to start the building permit process?

Contact us to discuss your project, site location, and intended works. We will confirm whether a permit is required, assess any territorial planning constraints, introduce you to appropriate licensed designers, and manage the INFOSTATYBA process from submission to permit issuance. We coordinate building permits for new residential and commercial construction, reconstruction, change-of-use projects, and legalisation of existing structures.