In short
- Start by confirming the cadastral parcel and its KAEK, so everyone is talking about the same piece of land.
- Out of plan, the general rule for building is at least 4,000 m² with 25 m of frontage on a lawful public road.
- Since May 2026, selling land that a ratified forest map shows as forest-type is void without a Forest Directorate certificate.
- Streams, the foreshore and Natura 2000 can restrict a plot that meets the size and road rules.
- Buyers from outside the EU and EFTA need a permit to buy in designated border areas.
1. Confirm the parcel and its KAEK
Every parcel in the Hellenic Cadastre has a 12-digit KAEK and a mapped outline. Ask the seller or agent for the KAEK, find the parcel on the map and compare its mapped area with the deed and any topographic plan.
If the area or outline does not match, it can be corrected: since 18 September 2026 geometric corrections go through the metavoles.ktimatologio.gr platform with a certified engineer. Ownership, mortgages and lawsuits are on the cadastral sheet, which your lawyer obtains.
2. Check whether the plot can be built on
- In-plan (εντός σχεδίου): land inside an approved town plan, with its own building terms.
- Settlements (οικισμοί): legally existing pre-1923 settlements, or settlements under 2,000 inhabitants with official boundaries.
- Out-of-plan (εκτός σχεδίου): everything else. Building is the exception and depends on plot size and road access.
Out of plan, a plot is buildable as a rule with at least 4,000 m² and 25 m of frontage on a public road. In 2023 the Council of State held that the road must be a lawfully existing public road, and which roads count is still being settled.
Smaller older plots (750, 1,200 or 2,000 m²) can only be built on if the owner applied by 9 December 2022, and, according to the Technical Chamber of Greece, the permit must be issued by 30 June 2027. If a seller calls a small out-of-plan plot buildable, ask to see the 2022 filing.
3. Check the forest maps
Forest maps mark land protected by forest law. Building homes on forest-coded land is generally not allowed, and one plot can carry several codes. A partly forest plot can only be built on if the non-forest part alone meets the minimum plot rules.
Under Law 5299/2026, in force since 5 May 2026, a sale of land that a ratified map shows as forest-type is void without a Forest Directorate certificate. For land outside forest law, an engineer's sworn declaration is enough.
4. Check streams, flood zones and the coast
- Streams: building inside a demarcated stream's boundary lines is banned. Most streams are not demarcated, and until a planned decree is issued buildings must keep at least 10 m from the flood lines inside town plans and settlements, and 20 m outside them.
- Flood zones: a mapped flood zone is not by itself a building ban, but it affects design, permits and insurance.
- Coast: the foreshore (αιγιαλός) and the beach zone behind it, up to 50 m, are public and can never be sold. Outside town plans, fences are generally not allowed within 500 m of the shore.
5. Check Natura 2000
Greece has 446 Natura 2000 sites covering about 27% of its land. Natura is not an automatic building ban, but out-of-plan plots inside a site need a larger minimum size to build, and projects that could affect a site need an environmental assessment. An engineer can issue an official Natura certificate for the plot.
6. Rules that depend on the buyer
- Buyers from outside the EU and EFTA need prior permission to buy in designated border areas. A purchase without it is void.
- Every buyer needs a Greek tax number (ΑΦΜ), and the price must be paid through a bank. A deed that records cash payment is void.
A plot can pass every public-map check and still not be buildable. Planning category, road status and local plans are confirmed by your engineer with the building office.
What a public-data pre-check shows
The pre-check starts by confirming the cadastral parcel for free. Core and Extended reports then check that exact parcel against forest maps, flood zones and Natura 2000, and Extended adds coastline distance, mapped rivers, land cover and distance to the nearest mapped road. That shows early which of the checks above need a closer look.
What it cannot tell you
It does not decide whether a plot is buildable. It cannot tell you the planning category, whether a road is a lawful public road, whether a 2022 filing exists, the legal foreshore line, or who owns the land.
Questions for your lawyer or engineer
- 01Do the KAEK, the cadastral area and the deed all describe the same parcel, and is any correction pending?
- 02Is the plot in-plan, in a settlement or out-of-plan, and is it buildable as a rule or only by exception?
- 03Does the frontage road count as a lawful public road, and what evidence shows it?
- 04Which forest-map codes touch the plot, and can you obtain the certificate or declaration needed for the sale?
- 05Is there a stream, foreshore line or Natura 2000 site that restricts building on the plot?
- 06If I am not an EU or EFTA citizen, is the plot in a border area that needs a permit?
Greek terms
| Greek | English | Meaning |
|---|---|---|
| Γεωτεμάχιο | Land parcel | The mapped unit of land in the cadastre. |
| Εκτός σχεδίου | Out-of-plan | Land outside a town plan or settlement. |
| Αρτιότητα | Buildable minimum | The minimum size and frontage a plot needs to be built on. |
| Κοινόχρηστος δρόμος | Public road | The road an out-of-plan plot must front to be buildable. |
| Δασικός χάρτης | Forest map | Map of land protected by forest law. |
| Αιγιαλός | Foreshore | Public strip of land washed by the sea. |
| Παραμεθόριες περιοχές | Border areas | Areas where non-EU buyers need a permit to buy. |
Sources
- Hellenic Cadastre map viewer
- Out-of-plan building decree of 24.5.1985 (Technologismiki)
- Council of State Plenary 176/2023 on road frontage (Lawnet)
- Technical Chamber of Greece: planning deadline extensions, July 2026
- Law 5299/2026, article 93: ratified maps and transfers (notarius.gr copy of the Gazette text)
- Law 4258/2014 on stream demarcation (e-nomothesia)
- Law 5092/2024 on the foreshore and beach zone, consolidated (e-nomothesia)
- Law 3937/2011 on biodiversity (e-nomothesia)