STR 2.03.02:2005 – Management of Industrial and Warehouse Building Plots
The Technical Construction Regulation STR 2.03.02:2005 specifies the general requirements for the management and layout of plots designated for production, industry, and storage. Issued by the Ministry of Environment of the Republic of Lithuania, this regulation is a mandatory legal instrument for the design, construction, and maintenance of industrial facilities. This specific version is the consolidated edition in force since August 25, 2017, operating within the framework of the Republic of Lithuania Law on Construction.
The regulation governs newly constructed, reconstructed, and capitally repaired production and warehouse buildings, as well as associated engineering structures. It provides a technical framework for plot zoning, building orientation, and the integration of transport and utility networks. Key structural elements include definitions for Sklypo užstatymo tankis (plot build-up density), requirements for Gamybos teritorija (production territory), and detailed technical annexes specifying minimum fire protection distances and clearances for engineering infrastructure.
This document serves as a reference for architects, structural engineers, and municipal planners to ensure site layouts comply with national safety, environmental, and accessibility standards for industrial zones.
Plot Zoning and Use Categories
Industrial plots are divided into functional zones to manage technological processes and safety. The regulation identifies four primary zones within the main fenced area and an optional external zone.
- Production Zone: Accommodates main industrial buildings and engineering infrastructure.
- Warehouse Zone: Dedicated to the storage of raw materials and finished products.
- Administrative-Auxiliary Zone: Includes management offices and employee welfare facilities.
- Recreation Zone: Comprises greenery and rest areas for personnel.
- Pre-production Zone (Priešgamyklinė zona): An area located outside the main fence for administration, control points, healthcare, and parking.
Building Placement and Safety Distances
The placement of buildings must account for air pollution, fire safety, and technological interference. Specific rules apply to structures emitting hazardous substances and high-rise industrial elements.
- Standard Distances: Buildings up to 8.5 m in height must be at least 3 m from the plot boundary. For every additional meter of height, the distance is increased by 0.5 m.
- Fire Protection: Minimum distances between buildings are determined by their fire resistance class (I, II, or III) as detailed in Annex 1.
- Pollution Control: Buildings containing air pollution sources must be placed in specific sheltered sections of the plot to prevent the spread of contaminants to other structures.
- Vibration Management: Structures housing high-vibration equipment must be isolated from other buildings based on geological and mechanical calculations.
Technical Infrastructure and Transport
Transport communications and engineering networks must be organized into unified corridors to optimize land use and ensure maintenance access.
- Entrances: Plots exceeding 5 hectares (ha) must have at least two separate vehicle entrances.
- Engineering Corridors: Utilities must be laid in unified technical strips or tunnels. Annex 5 and Annex 6 define the required horizontal and vertical clearances between different network types (water, gas, electricity, heat).
- Railways: Distances from internal railway axes to building elements are regulated by Annex 4.
- Basements: The floor level of basements or recessed rooms must be at least 0.5 m above the maximum groundwater level.
Frequently Asked Questions
What is the minimum distance between an industrial building and the plot boundary?
For buildings up to 8.5 meters high, the minimum distance is 3 meters. For taller buildings, the distance increases by 0.5 meters for every additional meter of height.
How is plot build-up density (Sklypo užstatymo tankis) calculated?
It is the ratio, expressed as a percentage, of the area covered by buildings and engineering structures to the total area of the plot.
When are two separate entrances mandatory for an industrial site?
A minimum of two entrances is required for production territories with an area exceeding 5 hectares.
What are the rules for placing fuel or chemical storage tanks?
Storage tanks for flammable or toxic liquids must be placed on lower terrain elevations relative to other buildings and must be enclosed by walls or earth embankments (bunds) as per fire safety norms.
What is the minimum width of a sidewalk near industrial buildings?
The minimum sidewalk width is 1.5 meters, though it can be reduced to 1.0 meter if pedestrian traffic is less than 100 people per hour.
Are there specific orientation requirements for industrial buildings?
Yes, longitudinal axes of buildings and skylights should be oriented at an angle of 45° to 110° to the meridian to optimize natural lighting and ventilation.
