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Greece Law 4122/2013 (EPC & nZEB)

Greece Law 4122/2013 (EPC & nZEB): Greece’s Building Energy Law: EPCs and nZEB Requirements Under Law 4122/2013

Maílis Carrilho
Written by Maílis Carrilho
Updated on December 8th, 2025

Summary

Greece’s Law 4122/2013 regulates building energy performance and introduces EPCs and nZEB standards. All new buildings must meet stringent energy requirements, and EPCs are mandatory for sales, rentals and major renovations. The law also mandates regular HVAC inspections and sets minimum energy-performance levels. It is a core component of Greece’s energy-efficiency policy.

Details

Jurisdictions
  • Greece
Exemptions

Binding for property owners, developers, architects, engineers and public authorities.

Obligations include:

Obtaining EPCs when selling, renting or renovating properties.

Meeting nZEB and minimum energy performance standards.

Complying with inspections for boilers and HVAC systems.

Using certified energy assessors.

Exceptions:

Certain protected or historic buildings may be exempt from strict energy-performance upgrades.

Temporary buildings and industrial sites may have reduced requirements.

Deep dive

2 min read
Updated Dec 8, 2025

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What’s Required

Law 4122/2013 transposes the EU Energy Performance of Buildings Directive. It regulates the energy design, certification, and renovation of buildings in Greece.

Core obligations:

  • Energy Performance Certificates (EPCs) are required for sale, rental, and major renovation.

  • Buildings must meet minimum energy-performance requirements.

  • Nearly Zero-Energy Buildings (nZEB) standards apply to new public buildings and, later, all new buildings.

  • Regular inspection of heating and cooling systems.

  • National plans to improve building stock energy efficiency.

Important Deadlines

  • Public new buildings required to meet nZEB standards from 2019.

  • All new buildings are required to meet nZEB from 2021.

  • EPC requirements continue for property transactions.

Current Status

Law 4122/2013 remains active and is updated periodically to align with EU EPBD revisions and Greece’s national energy-efficiency strategy. Demand for EPCs and renovations has increased due to subsidy programs like “Exoikonomo”.

Penalties

  • Administrative fines for missing EPCs or non-compliant performance.

  • Sanctions for non-certified assessors or incorrect inspections.

Examples of Violations

  • Missing EPCs during sale or rental.

  • Incorrect EPC classifications due to inadequate assessment.

  • Fines issued for non-compliance with HVAC inspection rules.

Resources


Maílis Carrilho
Added by:
Maílis Carrilho
Sustainability Research Analyst
Maílis Carrilho is a Sustainability Research Analyst (Intern) at Net Zero Compare, contributing research and analysis on climate tech, carbon policies, and sustainable solutions. She supports the team in developing fact-based content and insights to help companies and readers navigate the evolving sustainability landscape.
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Added on Dec 10, 2025 by Maílis Carrilho · Updated on Dec 8, 2025