by KHD: what the Greek Electronic Survey Plan Code is
The KHD (Kodikos Ilektronikou Diagrammatos) is the unique code every survey plan receives when it is submitted electronically to the Hellenic Cadastre. Without it, no property contract can be signed anywhere in Greece. Here is what it is, where to find it and when you need it.
The most common scene in any Greek notary’s office: the owner finds a buyer, opens the file — and the survey plan dates from the 1990s, with no coordinates and no KHD. It is not accepted. The sale stalls for weeks. Here is exactly what the KHD is, where you find it and when you need it.
Need a survey plan with KHD for a contract? We draw it up and submit it electronically to the Hellenic Cadastre — qualified engineers in Samos, for properties all over Greece. See our survey plan service.
What a survey plan (topographic plan) is
A survey plan is the official drawing of your plot, signed and stamped by a qualified engineer. It records the exact boundaries with EGSA ’87 (GPS) coordinates, the area, neighbouring plots, roads, contour lines, forest cover and every element that affects whether you can build. It is not a sketch — it is a legal document. See our page on survey plans in Samos for details.
What the KHD (Electronic Survey Plan Code) is
The KHD is a unique code assigned to every survey plan after it is submitted electronically to the Hellenic Cadastre. It has been mandatory since 2018. Without a KHD, your survey plan does not exist for any official purpose — and no notary will sign a contract without it.
- Issued by the engineer through the Cadastre platform, usually within 1–2 working days
- Permanent, as long as the plot’s boundaries or area do not change
- Publicly verifiable — anyone involved can check it
Where to find the KHD of my property
The KHD is printed on the survey plan itself, usually in the legend at the bottom right, together with a verification link or QR code. If your drawing has no such field, it has no KHD — so it was never submitted electronically and will not stand up in a contract. Alternatively, ask the engineer who drew it up: the code stays registered in their account on the Cadastre platform.
KHD or KAEK? They are not the same
They are constantly confused. The KAEK (National Cadastre Code Number) identifies the property as a land parcel and does not change. The KHD identifies the drawing — the specific survey plan an engineer produced at a specific moment. A parcel has one KAEK, but it can collect several KHD codes over the years, one for each new survey plan.
When it is mandatory
- Selling a property — survey plan mandatory since 2012, with KHD since 2018
- Building permit — the e-Adeies platform does not accept an application without an up-to-date survey plan
- Cadastre registration — requires EGSA ’87 coordinates
- Acceptance of inheritance & parental gifts — notaries ask for an up-to-date survey plan
- Legalising unpermitted structures — the first step of every declaration (see legalisation of unpermitted structures)
- Mortgage — banks require it in the valuation file
Is my old survey plan still valid?
If it is from before 2012, no. It has neither EGSA ’87 coordinates nor a KHD, so it is rejected by notaries, banks, the Cadastre and e-Adeies. You will need a new one for any transaction. Better to check it before you put the property on the market, not on the day of the contract.
And the Electronic Building Identity?
That is a different document. The survey plan concerns the plot; the Electronic Building Identity (mandatory since April 2022 for every sale of a building) concerns the building — permits, drawings, EPC and legal status. When selling a plot with a building, you need both. See in detail what the Electronic Building Identity includes and how it connects with the Hellenic Cadastre. As an in-house engineering team, we handle both under one roof.
📍 Samos specifics: the Cadastre is not yet complete everywhere on the island and is expected around 2028. Many rural plots border forest zones or streams without clear markings. A local surveyor who knows the island saves re-submissions and unpleasant surprises. And before any contract, run a Cadastre check of the property in Samos — area, boundaries, KAEK.
Need a survey plan with KHD?
Request a quote for a survey plan with KHD →Frequently asked questions
How much does a survey plan with KHD cost?
A standard survey plan with EGSA ’87 coordinates and KHD costs roughly €350–€700 + VAT. The final price depends on the area, location, terrain and whether a forest-map check is needed.
Can I sell without a survey plan?
No. Since 2012 it is mandatory for every sale, and since 2018 it must carry a KHD. Without them, no contract can be drawn up.
How quickly is it delivered?
Usually 7–10 working days after the on-site survey. Urgent assignments (3–5 days) at a surcharge.