You don’t just rent or buy a unit in Thailand — you join a building with its own legal entity, its own budget and its own rulebook. This guide explains the part that surprises most foreigners: the Condominium Act, the juristic person that actually runs the place, the common-area fee and sinking fund, the 49% foreign-ownership quota, and the house rules on pets, parking, renovation and short-term lets — plus how to register, get your keycards, and sort out a dispute with management. Unbiased, never paid placement.
Every Thai condo is run by a juristic person under the Condominium Act — a manager and an owner-elected committee who collect the common-area fee, hold a reserve called the sinking fund, and enforce the building’s house rules. Foreigners can own up to 49% of a building, but anyone can rent. Read the rules before you move in, not after.
Editorial analysis compiled and periodically refreshed by BAANLYY’s research team — not a live data feed.
Analysis last reviewed 2026-07-05.
In a Thai condominium you have two sets of rules over your head, not one. Your lease governs your relationship with the unit’s owner. But the building itself — the lobby, lifts, pool, car park, corridors and structure — is owned collectively and run by a separate legal body under its own regulations. That second rulebook decides whether you can have a pet, where you park, when you can move furniture in, whether your visitors can use the gym, and how renovations are approved.
Foreigners routinely sign a perfectly good lease and then collide with the building’s rules a week later. Knowing how the condominium is governed — and reading its house rules before you commit — is the difference between a smooth move-in and an expensive surprise.
Condominiums in Thailand are created and governed by the Condominium Act B.E. 2522 (1979) and its later amendments. When a building is registered as a condominium, the law creates a juristic person (niti bukkon) — the legal entity that owns and is responsible for the common property. Three roles run it:
Every owner is automatically a member of the juristic person. As a tenant you’re not a member and don’t vote — but you live under everything they decide, and the juristic office is your first port of call for keycards, parking, deliveries and complaints.
Under the Condominium Act, foreigners can collectively own up to 49% of the total private floor area of a building; the remaining 51% must be Thai-owned. This is the single rule most foreign buyers have to plan around — in a popular building the foreign quota can sell out, leaving only Thai-quota units (which a foreigner generally can’t buy in their own name outright).
The only way the quota touches renting is indirectly: Thai-quota units sometimes trade cheaper, which can nudge what landlords price — but it changes nothing about your right to live there.
These two charges fund the building, and they tell you a lot about how well it’s run:
In a normal rental the owner pays both; the tenant pays rent plus their own metered electricity, water and internet. A lease that tries to pass the CAM fee onto a short-term tenant is unusual — question it before signing. If you’re buying, ask for the building’s accounts and the size of the sinking fund: a low fee with an empty reserve is a warning sign, not a bargain.
The Condominium Act lets each juristic person set reasonable regulations for the common property, and these are generally enforceable through keycards, the front desk and the building’s power to fine or restrict access. Typical house rules cover:
Ask the juristic office for the house rules in English (or get them translated) before you sign. “It should be fine” from an agent is not the same as the written rule from the people who enforce it.
Thailand’s Hotel Act treats renting accommodation for fewer than 30 days as operating a hotel — which needs a hotel licence ordinary condos don’t hold. So nightly and weekly Airbnb-style letting is widely illegal, and most juristic persons ban it in their house rules and police it at the front desk with keycards and visitor logs.
Leases of 30 days or longer are the normal, lawful rental market. If you’re a tenant, don’t sublet your unit by the night; if you’re an owner, market for monthly-plus stays. A building that tolerates daily-rental churn is a red flag for noise, security and resale value — not a feature.
Two different “registrations” trip people up, and they’re not the same thing:
Confirm at signing who files your TM30 and how you’ll get the keycards — a landlord who shrugs at the TM30 can leave you unable to do visa extensions later. Our first-30-days guide sequences the whole move-in.
Most condo friction is solved at the juristic office, not in court. Escalate calmly and on paper:
The right unit in a badly-run building is the wrong unit. Learn the area, the building and the going rate — then read the house rules and the accounts before you commit.
General information only — not legal advice. The Condominium Act, foreign-ownership quota, Hotel Act, common-fee and registration rules change and vary by building and case. Confirm current requirements and your specific building’s regulations with the juristic office, official Thai authorities and a licensed Thai lawyer where needed. BAANLYY never takes paid placement.