The foreign quota is the single rule that decides whether you get a Thai condo in your own name or not. Under the Condominium Act, foreigners may hold freehold title to no more than 49% of the total sellable floor area of all units in a building. The other 51% must remain Thai-owned. The rule applies building by building — not per project, not per developer, not island-wide. If the building you want still has quota, you register freehold in your own name at the Land Office. If it doesn't, freehold is off the table for you in that building, full stop.
That's the whole rule. The money questions are in the details: how the 49% is measured, how to verify it before you commit cash, and what your options are when a building is quota-full.
The quota is measured in square metres, not units
A common misreading: "49% of the units can be foreign-owned." Wrong. The Act counts sellable floor area, and the difference matters in practice.
Take a simplified building with 100 units totalling 5,000 m² of sellable area. The foreign quota is 2,450 m² — regardless of how those square metres are sliced. If foreign buyers favour the large sea-view units (they usually do), the quota can be exhausted while well over half the units by count remain Thai-held. The reverse also happens: a building full of foreign-owned studios can sit comfortably inside quota with most of its floor area still available.
Practical consequence: never estimate quota from unit counts, sales-office chatter, or how "international" the building feels. Only the developer's or juristic person's area ledger answers the question, and the answer changes with every transfer.
How to check remaining quota — before you reserve
This is the check that prevents the most common bad surprise in Thai condo purchases. It costs one email and one or two days.
Buying off-plan or new from a developer. Ask the developer for written confirmation of remaining foreign-freehold quota, on letterhead, before you pay a reservation fee. A serious developer produces this routinely — they track quota allocation unit by unit, because they need the same numbers at every transfer. If the sales office stalls, hedges, or offers verbal assurance only, treat that as your answer. We run this check on every deal we advise on; the pillar guide on buying property in Phuket as a foreigner covers where it sits in the full purchase sequence.
Buying resale. The document you need comes from the condominium juristic person — the legal entity that manages the building. It issues a foreign-quota letter confirming the building's current foreign-ownership ratio and that your purchase fits inside the 49%. This is not optional paperwork: the Land Office requires it to register a foreign freehold transfer. Get it at the due-diligence stage, not on transfer day.
One more hard requirement rides alongside the quota: the FET form. Purchase funds must arrive from abroad in foreign currency, and your receiving Thai bank issues a Foreign Exchange Transaction form evidencing it. No FET, no foreign freehold registration — even with quota to spare. Quota letter plus FET paperwork are the two documents that make foreign freehold happen.
When the quota is full: the leasehold offer
In buildings popular with international buyers, the quota does sell out. What you'll then be offered is leasehold — typically a 30-year registered lease, often with contractual renewal options.
Two things to understand about that offer.
First, registered leasehold is a real, enforceable property right — not a scam and not worthless. Much of Thailand's foreign-held stock trades this way.
Second, it is a weaker right than freehold, and the market prices it that way. In buildings that sell both, leasehold units generally trade below comparable freehold units, and leasehold resale is slower: your future buyer inherits a shortened remaining term. If a sales office offers you leasehold "at the same price as freehold, because the building is so popular" — that arithmetic runs backwards. The price should reflect the right you're getting.
So when a building is quota-full, you have three honest options: take leasehold at a properly discounted price, wait for a freehold unit to return via resale (foreign-to-foreign resales recycle quota rather than freeing it, but foreign-to-Thai sales do release quota), or pick another building.
How investors play the quota
The quota creates a timing asymmetry, and experienced buyers use it.
Buy early in new launches. At launch, 100% of a building's foreign quota is available. In projects aimed at international buyers, the freehold quota is the first thing consumed — often before construction tops out. Early buyers get freehold plus first pick of units; late buyers in the same building get the leasehold conversation. This is a structural reason to look at early phases, separate from any launch pricing.
Prefer freehold for exit, not just entry. Your resale market for a freehold unit includes every foreign buyer still shut out of the building's quota. A quota-full building with strong demand effectively makes existing freehold titles scarcer — the 49% ceiling works for you once you're inside it.
Check the quota ledger even when "everyone knows" there's space. Thai-majority buildings in local areas rarely fill their quota; beachfront branded residences fill it fast. The only number that matters is the current one, in writing.
The short version
The 49% quota is measured by sellable area, verified in writing — developer letter for new builds, juristic person letter for resales — and consumed fastest in exactly the buildings foreign buyers want most. Check it before any money moves, pair it with correct FET paperwork, and the foreign freehold path is straightforward.
If you're comparing condos now, our current condo selection shows from-pricing across projects with foreign-freehold availability. Ask us about any building — as independent advisors we run the quota check and send the developer's full price list the same day, free.