Thailand's Condominium Act limits the total proportion of any building that foreigners can own freehold. Understanding how this quota works before you buy is essential.
What is the 49% foreign condo quota rule in Thailand?
Under Section 19 of the Thai Condominium Act, foreign nationals (individuals and foreign-majority companies) can own no more than 49% of the total sellable area of any single condominium building. The remaining 51% must be held by Thai nationals or Thai-majority entities.
This is a hard legal cap, not a developer policy. It cannot be waived by agreement.
How is the foreign condo quota calculated?
The quota is calculated by area (square metres), not by number of units. A building with 100 units totalling 10,000 sqm has a foreign quota of 4,900 sqm.
A large developer penthouse of 200 sqm counts more toward the quota than a standard 50 sqm studio. This means quota availability varies by building layout and sales history, not just unit count.
How do you check foreign quota availability in a Thai condo?
- Ask the juristic person office — Every registered condo has a juristic person (the building management entity). They maintain a current record of foreign vs Thai ownership percentages.
- Ask the developer — For new developments, the developer tracks allocation.
- Check at the Land Office — The provincial Land Office maintains chanote transfer records. For buildings where the quota is nearly full, this is the definitive source.
Your lawyer can obtain an official quota certificate before you proceed.
What Happens When the Quota Is Full?
If a building's foreign quota is exhausted at the time of your purchase:
- You cannot buy the unit as a foreign freehold owner
- You can buy on a long-term lease (30-year leasehold) instead
- You can buy via a Thai company (complex, expensive, and carries its own risks)
- You look for another unit or building where quota is available
Some buildings in popular areas—particularly in Bangkok's Sukhumvit, Phuket's Bang Tao, and Pattaya's Jomtien—have been at or near 100% foreign quota for years. Do not assume availability without checking.
What does the 49% foreign quota mean for buyers in practice?
New launches: Developers typically pre-allocate the 49% foreign tranche at launch. In high-demand projects, the foreign tranche sells out quickly—sometimes within days.
Resales: If you are buying from an existing foreign owner, the unit remains in the foreign tranche. The quota does not reset on resale between foreigners.
Thai to foreign: A unit owned by a Thai national can be transferred to foreign ownership, consuming foreign quota. A transfer in the opposite direction (foreign to Thai) releases quota.
Can the 49% Rule Change?
There has been periodic political discussion in Thailand about relaxing the foreign quota for certain development zones or types of property. As of 2026, the 49% cap remains unchanged. Any relaxation would require an amendment to the Condominium Act.
Key Takeaway
Always verify the foreign quota before making an offer on any Thai condo. A building at 100% foreign ownership means you either pay for a leasehold—or walk away. Check early; do not discover this at the contract stage.
Which Section Actually Sets the 49% Cap
The 49% figure sits in Section 19 bis of the Condominium Act B.E. 2522 (1979), not Section 19. Section 19 lists the five categories of foreigners who may own a unit; Section 19 bis sets the cap. Citing Section 19 for the number is a common error.
The cap is 49% of the building's total unit floor area, not 49% of the units. A building can therefore reach its foreign limit while fewer than half its units are foreign-owned. Common areas such as lobbies, corridors and the pool are excluded, and the denominator is fixed when the building is registered.
As of October 2026 the cap is unchanged. A proposal to raise it to 75% has been under study since a June 2024 cabinet instruction but no bill has reached Parliament, and a change becomes law only when an amending Act is published in the Royal Gazette. The last amendments were No. 2 (1991), No. 3 (1999) and No. 4 (2008).
Source note added: Condominium Act B.E. 2522 (1979) as amended, Sections 19 and 19 bis. The official consolidated Thai text is published by the Office of the Council of State. Enquiries on ownership structures go to the Department of Lands.
