How to Read a Horizontal Property Deed Before You Buy

Most buyers focus on: square meters floor level price view Very few properly review: The horizontal property deed (condominium deed). Yet this document defines: your ownership percentage your voting power your financial obligations your legal limitations If you do not read it correctly, you may end up buying something different from what you believe.

BUYING PROPERTY IN GREECE

Christos Boubalos - poli.gr

2/19/2026

1️⃣ Ownership Shares (Thousandths)

In Greece, each apartment has a defined share (χιλιοστά) of:

  • The land

  • The common areas

  • The overall building

These percentages determine:

  • How much you pay for major building expenses

  • Your participation in decisions

  • Your proportional land ownership

Two apartments of the same size can have different ownership shares.

And that changes everything.

2️⃣ Exclusive Use vs Ownership

The deed may refer to:

  • Exclusive use of garden

  • Exclusive use of roof

  • Exclusive use of parking space

Important question:

Is it ownership — or only exclusive use?

Exclusive use does not automatically mean ownership.

If this is not clarified, legal disputes can arise later.

3️⃣ Usage Restrictions

The deed may prohibit or restrict:

  • Commercial use

  • Short-term rentals (Airbnb)

  • Subdivision of the unit

  • Structural alterations

  • Changes to façade

If you plan to:

  • Rent short-term

  • Modify the layout

  • Change usage

you must verify what the deed allows.

4️⃣ Common vs Private Areas

Carefully examine:

  • What is common property

  • What is common ownership

  • What is privately owned

Basements, storage rooms, pilotis, roof terraces —
are often used informally.

The deed clarifies what is legally permitted.

5️⃣ Future Building Rights (Air Rights)

In older buildings, the deed may include:

  • Remaining building coefficient

  • Air rights

  • Future construction rights

If another co-owner retains the right to build upward,
the building may change in the future.

This can affect:

  • View

  • Natural light

  • Property value

6️⃣ Legal Consistency with Reality

The deed must align with:

  • Approved architectural plans

  • Building permit

  • Current condition of the property

If unauthorized alterations exist and have not been legalized,
the legal risk transfers to you.

The Biggest Mistake

Assuming:

“If there is a contract, everything is fine.”

The horizontal property deed is effectively the “constitution” of the building.

If you do not understand it,
you are buying without understanding the rules.

When This Becomes Critical

This is especially important when:

  • Buying a ground-floor unit with garden

  • Buying a penthouse with roof use

  • Buying for investment purposes

  • Purchasing parking or storage rights

These elements often hide legal nuances.

Conclusion

You are not just buying an apartment.

You are buying:

  • A percentage of land

  • A share of common infrastructure

  • Legal obligations

  • Structural limitations

If you do not properly review the deed,
you may acquire less than you think.

The Role of Poli Real Estate

At Poli Real Estate, due diligence goes beyond price and layout.

We review:

  • Ownership shares

  • Exclusive rights

  • Usage limitations

  • Future implications

Because a good purchase starts with full legal clarity.

👉 Contact Poli Real Estate for a pre-purchase deed review before committing.