When it is drawn up

The implementation act (πράξη εφαρμογής) is the instrument of Law 1337/1983: it is drawn up for properties entering the town plan for the first time or in areas where the plan is extended. Town-planning studies under Law 2508/1997 and today's Street Plans for Implementation (Ρυμοτομικά Σχέδια Εφαρμογής) are also carried out through an implementation act. Its provisions are now in the Spatial and Urban Planning Code (Law 5306/2026, Articles 139 and 144).

For older plans, approved under the system of the Legislative Decree of 17.7.1923, plots are adjusted through different acts: plot adjustment and compensation apportionment acts.

What it sets for each property

the part taken as a land contribution (εισφορά σε γη) for public spaces
the parts converted into a cash contribution (εισφορά σε χρήμα)
the parts taken for roads, squares and public-benefit uses
plot adjustments, annexations (προσκυρώσεις) and mergers, so that buildable plots result

The land contribution is graduated: it starts at 10% for the part up to 500 m² and reaches 50% for the part above 10,000 m², with special scales in some areas. The act is accompanied by a cadastral diagram and a cadastral table with the data of each property. The law provides compensation for value differences and for what is lost, such as trees and fences.

Declarations, objections and ratification

Owners file property declarations with the municipality. Once the act is drawn up, they are invited to review it and to file objections within the deadline set in the invitation. As a rule it is ratified by decision of the Regional Governor (for Street Plans for Implementation, by the same decision that approves the plan) and registered with the Hellenic Cadastre or the land registry. The review period is the best time to check whether the act shows your property correctly.

If the ratified act contains an error

After ratification the act becomes final. If it contains an error, for example a wrong area, a property credited to someone else or a title deed that was ignored, it can be corrected by way of exception through a corrective implementation act (Law 5306/2026, Article 144(7)(e)), on grounds of legality or of a mistake of fact. When this is allowed and what is needed is explained in the guide Corrective implementation act.

What the surveying engineer does

Surveys the area and the properties in GGRS87 (ΕΓΣΑ87), the national coordinate system of Greece, and draws up the cadastral diagram
Matches each property with its title deeds and the property declarations
Calculates areas, land contributions and the parts taken or annexed
Prepares the diagrams needed for registration in the Cadastre

For an owner, the practical question is simple: what does the act charge you, and does it match the property you own? We survey the property and compare it with the act, so that you and your lawyer know whether there is an error.

What you need / steps

Your title deeds and the KAEK (the 12-digit cadastral code), if the property has been mapped by the Cadastre
The documents of the act that concerns you: diagram, table and ratification decision, if it has been ratified
A survey of the property and a comparison with the areas in the act
If there is a difference, working with your lawyer on the objection or the correction

What we do

For implementation acts we prepare the survey base maps: the survey of the area and the properties in GGRS87. If the act contains an error, we prepare the file for the corrective act.

If your area is entering the town plan or already has an act, send us the location and title deeds and we will tell you what it shows. See our topographic survey work.

Implementation act: what it means for your property when it enters the town plan