How to find a building permit on Diavgeia (2026 guide)
Every building permit issued through the e-Adeies system of the Technical Chamber of Greece (TEE) is posted publicly on Diavgeia. In a few steps you can find a permit, understand what kind of act it is and check its basic details.
Where permits are posted
The acts of the e-Adeies system (building permits, revisions, works approvals and so on) are posted on Diavgeia, the government transparency portal, under the Technical Chamber of Greece (TEE) as the issuing body, not the municipality or the building services office that issued them. This is the first thing to know when you search: if you search under the municipality, you will not find them.
Each act has its own ADA (Internet Posting Number), a unique code of letters and numbers. If you have the ADA, searching Diavgeia takes you straight to the act and its PDF.
The types of acts: what each one means
| Type of act | What it means in practice |
|---|---|
| Pre-approval of a building permit | A pre-stage of the permit, mainly for larger projects: compliance with the building conditions is checked. It does not yet allow works. |
| Building permit (Law 4759/2020) | The permit for a new building or an addition. It legally allows works to start. |
| Revision of a building permit | A change to a permit that already exists: plans, site coverage, built area or other details. |
| Update of a building permit | An update of the permit's details without a substantial change to the building (e.g. a change of supervisor or an extension). |
| Small-scale building works approval | For works on existing buildings: external wall insulation, scaffolding for painting, interior alterations, pergolas, photovoltaics and so on. |
| Works execution approval | Approval for specific works defined by law, without a full building permit. |
| Demolition permit | Demolition of a building. Often, but not always, it comes before a new construction. |
For anyone looking for new projects, the important act is the first Building Permit. Revisions and updates concern projects that already exist. If you are interested in renovations, look at the Small-Scale Works Approvals.
Step by step: searching on Diavgeia
- Open Diavgeia and go to the search for decisions.
- If you have an ADA, enter it and the act will be found immediately.
- Otherwise, select the body Technical Chamber of Greece (its name is in Greek on Diavgeia) and narrow the search with dates and key words from the subject of the act, such as its type (the Greek words for "building permit", Oikodomiki Adeia) or the area.
- Open the act and download the PDF: that is where the full form is.
The Diavgeia search is made for finding one specific act. To see all the new permits in an area every day, you need something else: that is why we built the xtizetai.gr map, which reads the acts every afternoon and shows the new apartment buildings on a map, with a link to the official act.
What the permit form says
- Location of the project: municipality, street, area, city block, often coordinates too.
- Building details: plot area, site coverage, built area, volume, height, number of floors, parking spaces, uses (dwelling, shop and so on).
- Dates: issue and expiry.
- Works: in small-scale works approvals, the list of works with codes (e.g. "ith" for external thermal insulation, in Latin letters).
- People: owners and engineers.
Be careful with personal data. The form contains the names of owners and engineers. That they are posted publicly does not mean you may copy them, republish them or use them for advertising. This is why xtizetai.gr does not store or show the names of individuals, only company names.
Frequently asked questions
If I find a permit, does it mean the project has started?
No. The permit allows works to start, but it does not say when they will actually start. The permit date is a good indication of when each trade will be needed, not a guarantee.
How quickly is a permit posted?
From what we see in the data, most acts appear on Diavgeia within a short time of being issued. In our data, half of the acts are posted within about two and a half hours and 9 in 10 within 24 hours. What is issued in the afternoon or at the weekend usually appears the next working morning.
Can I also find old, paper permits?
Old paper permits, from before the electronic system, are not on Diavgeia. When an old permit is revised or updated electronically, however, the new act is posted ("Revision of a paper Permit" or "Update of a paper Permit").