Fundamentals

Condominium ownership: private units, common areas, and shared obligations

By Daniel Sardá · Published on July 11, 2026

3 min read553 words

Condominium ownership combines exclusive ownership of a unit with shared ownership and obligations concerning the building’s common elements.

Condominium ownership is a legal arrangement that combines exclusive ownership of a private unit with shared rights and obligations over common parts of a building or development. Some civil-law jurisdictions use a concept commonly translated as “horizontal property,” while other systems speak of strata title or commonhold.

The architecture is similar even when the legal vocabulary differs: an owner controls an apartment, office, or shop, but cannot separate it from the roof, structure, corridors, pipes, elevators, land, and other common elements that make the property usable.

Private units and common elements

| Part of the property | Typical legal position | Examples | |---|---|---| | Private unit | Exclusively owned and used, subject to the governing rules | Apartment, office, shop, storage unit | | Common element | Shared by the owners or held by an association | Structure, roof, stairs, elevator, main pipes | | Limited common element | Shared in law but reserved for certain units | Balcony, parking space, terrace, entrance |

The exact classification comes from local law, title documents, plans, and the declaration or bylaws governing the property.

Typical rights of an owner

Owners generally may use, sell, lease, or mortgage their unit, vote in collective decisions, inspect certain records, and use common areas. These rights are not unlimited. Structural safety, neighbors’ rights, building rules, and lawful decisions of the owners’ body may constrain renovations, noise, commercial use, or short-term rentals.

Fees, maintenance, and shared obligations

Common expenses pay for maintenance, cleaning, insurance, administration, utilities, repairs, and reserve funds. The method for allocating them may depend on ownership percentages, unit size, a governing document, or statutory rules.

An owner’s claim that an elevator or pool is rarely used does not automatically cancel the duty to contribute. Whether an exception exists is a legal question for the relevant jurisdiction and documents.

Administration and decision-making

Most systems provide an owners’ assembly or association and an administrator or board. Their powers commonly include budgets, contracts, maintenance, collection of charges, and enforcement of rules.

Good administration requires transparent accounts, clear meeting notices, accessible records, and defined voting procedures. Major structural work or changes to common elements may require a higher threshold than routine decisions.

Common disputes

Frequent conflicts concern unpaid fees, noise, pets, parking, water damage, unauthorized alterations, use of common areas, and the validity of meeting decisions. Early documentation and clear procedures often prevent a practical disagreement from becoming a prolonged legal dispute.

Country differences matter

The names of institutions, voting thresholds, collection procedures, and legal effects of registration differ widely. General principles can explain the arrangement, but they cannot replace local legislation, title documents, or professional advice.

Frequently asked questions

Does a cadastre or property registry prove exactly what belongs to my unit?

It may provide important evidence, but the answer depends on the country. Title documents, registered plans, declarations, and cadastral data may each play different roles.

Can an association restrict the use of my private unit?

Sometimes, within the limits of applicable law and valid governing documents. Restrictions generally need a legitimate relationship to safety, shared property, or neighbors’ rights.

A useful synthesis

Condominium ownership is neither purely individual nor purely collective. It gives owners a private unit while making them participants in the governance and cost of an inseparable shared property.