TL;DR:“Quota full” usually means the condo has reached the legal 49% foreign‑ownership cap, so no more units can be sold to non‑Thai buyers.
Most often that sign means the building’s foreign-ownership quota is full. Under the Thai Condominium Act, no more than 49% of a condo’s total unit area may be owned by non‑Thai nationals. Once that 49% threshold is reached, the developer or management must stop selling units to foreigners and will display notices — often “quota full.” It does not affect Thai buyers or renting in most cases, but it does prevent foreign freehold purchases of remaining units. For purchases, check the condominium juristic person’s certificate and the Land Department records; for rentals, confirm contract and ID requirements. Official reference: Thai Condominium Act and Land Department condominium registration guidance.
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