Israel Building Codes

Current Codes of Israel

Israel enforces a mix of mandatory and voluntary standards for building energy efficiency. Thermal insulation requirements, energy-rating systems, and an Israeli green-building standard form the core of the regulatory framework. The primary technical standards in use today are SI-1045 (thermal insulation), SI-5281 (sustainable/green building standard) and SI-5282 (energy-rating methodology). These standards sit alongside national energy-efficiency programs and municipal green-building requirements.

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Israeli standardization: energy efficiency and renewable energies

National energy policy and recent direction

Israel’s national programs have aimed to reduce electricity consumption and raise building energy performance through voluntary and regulatory measures. The National Energy Efficiency Program (documents and roadmaps covering 2010–2020 and updated planning into 2020–2030) frames long-term targets and supports municipal and sectoral measures (including retrofits, appliance standards and building-level performance improvements). That national planning continues to influence updates to SI-5281/5282 and related programs.

Where Israel is different (practical notes for designers & builders)

  1. Combined system: standards + municipal adoption. While SI-5281/5282 are national standards, many local authorities require specific EPI reductions or mandatory green measures as part of the building permit process — e.g., cities requiring a % reduction in the baseline EPI for new buildings. That means a project must satisfy both SII standards and any city-level requirements. IEA

  2. Multiple compliance routes. The standards allow prescriptive and performance-based approaches. For many projects a performance route (energy modelling to show EPI targets) is the most efficient way to balance architectural objectives with energy performance. IEA

  3. Focus on building envelope and water/energy efficiency. SI-1045 and the energy chapter of SI-5281 put heavy emphasis on envelope U-values, glazing performance, shading, low-flow fixtures and efficient HVAC and hot-water systems.

Helpful Links

Key standards you must know

  • SI-1045 — Thermal insulation of buildings
    SI-1045 sets minimum thermal-insulation requirements for building envelopes (walls, roofs, floors and frequently glazed elements). It applies to buildings used for overnight stays and has been progressively expanded to cover more building types and performance options. Compliance with SI-1045 is central to reducing heating/cooling loads and improving occupant comfort. Gov.il

  • SI-5281 — Israeli Sustainable (Green) Building Standard
    SI-5281 is Israel’s voluntary (now widely referenced and sometimes required by municipalities) green-building standard. It uses a points-based rating across energy, water, materials, indoor environment, and site planning. SI-5281 can be applied using prescriptive or performance routes and is commonly paired with SI-5282 (energy rating) for the energy chapter. Municipalities — notably Tel Aviv and other large cities — have adopted SI-5281 elements into local permitting and planning processes. IEA+1

  • SI-5282 — Energy rating of buildings
    SI-5282 provides the technical method for assessing a building’s energy performance (energy performance index or EPI) used by SI-5281 and by municipal green building requirements. It defines calculation rules, reference baselines and reporting formats that support both design-stage modelling and in-use performance checks.

History

  • 1970s–1990s: Thermal insulation standards emerged after the global energy-price shocks and were expanded during the 1980s–1990s.

  • 2000s: Israel developed SI-5281 (green building) and SI-5282 (energy rating) to create a coordinated sustainability rating system for buildings.

  • 2010s–2020s: National resolutions and the National Energy Efficiency Program drove updates and municipal adoptions; SI-5281 and SI-5282 have been revised to widen scope (more building types, stronger energy chapters) and encourage municipalities to adopt performance targets

As a result of the 1973 oil crisis, Israel began taking energy efficiency measures in building construction. The first measure passed was IS-1045, a standard on insulation in residential buildings. The standard was completely revised in the 1980’s, and again in the 1990’s when it was extended to cover virtually all buildings. Israel has also passed standards on air conditioning and window certification. Other policies of note are the Energy Sources Law of 1989, and the Energy Sector Law of 1996, which aim to regulate energy and source distribution and consumption. In 2005, Israel established IS-5282, a voluntary measure that defines criteria for the rating of both residential and office buildings according to their energy consumption. It is used in conjunction with IS-5281 to assess the energy efficiency measures taken, and gives a rating for the building. Builders can use a prescriptive, descriptive, or performance-based path for compliance.

As of July 2013, SI 5281 is undergoing another revision. Changes that will be made may include expanding it to industrial buildings, neighborhoods and campuses, and more.

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