Athens Consolidates 170 Laws Into Single Code, Restricts Small-Town Growth

Greece is undergoing a major overhaul of its planning and zoning framework, consolidating more than 170 fragmented laws into a single Planning Code and centralizing municipal urban planning offices into a National Cadastre and Building Control Agency, according to official documents. The reforms, which include a 2025 presidential decree (D' 129/2025), aim to streamline development processes and curb unregulated expansion in smaller settlements.

The decree imposes strict limits on settlement expansion in towns with fewer than 2,000 residents, restricting village boundaries to areas developed prior to 1983. For any growth beyond those limits, local authorities must provide scientific proof of a population increase unrelated to tourism. The measure is designed to halt what officials describe as unregulated sprawl in Greece's rural and island communities.

New zoning rules under the reforms simplify land-use categories to align with European Union norms and establish a uniform National Land Use Nomenclature. Off-plan construction coefficients have been reduced by 10%, a change that could affect the scale of new housing developments. The reforms also promote mixed-use development, making it easier for residential, commercial and other uses to coexist in the same area.

What the changes mean for Athens residents

For Athenians, the consolidation of nearly 200 separate laws into a single code is expected to reduce bureaucratic delays when applying for building permits. Development in Greece already requires a combined system of planning and building control via a building permit, plus environmental or heritage approvals if a project impacts monuments or protected areas. The new system is intended to make those processes more predictable and transparent.

The 10% reduction in off-plan construction coefficients may lead to slightly smaller new building projects, but the shift toward mixed-use zoning could create more vibrant neighbourhoods where shops, offices and homes are located together, particularly in Athens' central districts and growing suburbs.

Enforcement and oversight

Enforcement of the new rules will be carried out by municipal planning offices and specialized bodies such as the Environmental Inspectorate. These agencies have the authority to issue stop-work orders, impose fines, revoke permits and order the demolition of unauthorized structures. The centralization of planning offices into the National Cadastre and Building Control Agency is expected to improve coordination and accountability.

The reforms represent the most significant restructuring of Greek planning law in decades. While the full impact on Athens and other urban centres will depend on implementation, the government says the measures will bring greater legal certainty and align Greek practices with broader European standards.