Thailand's condominium market is one of the few property categories where foreigners can hold full freehold title (in the foreign quota — maximum 49% of any building). But condo ownership involves ongoing costs that vary dramatically between projects. Understanding these before purchase or rental is essential. Monthly common area maintenance fees (CAM): every registered condominium charges a monthly maintenance fee covering: building security, cleaning of common areas, pool and gym maintenance, lifts, and lobby. Fees are charged per square metre of the unit. Typical rates: ฿20–80/sqm/month. A 50 sqm unit in a mid-range Bangkok condo costs ฿1,000–4,000/month in maintenance fees. Luxury condos in Sukhumvit can charge ฿120–200/sqm/month (฿6,000–10,000/month for a 50 sqm unit). Check the fee before committing — this is a non-negotiable ongoing cost. Sinking fund: a one-time payment at purchase into a reserve fund for major future repairs (lift replacement, roof, pool resurfacing). Typically ฿300–700/sqm paid at transfer. For a 50 sqm unit: ฿15,000–35,000. Special assessments: when major repairs exceed the sinking fund, the juristic person (condo management committee) may levy a special assessment on all owners. This can be several thousand baht per sqm and comes with little warning. Check the building's repair history and sinking fund balance before buying. Utility billing: electricity in Thai condos is either billed directly by the Metropolitan Electricity Authority (MEA/PEA) at regulated rates, or sub-metered by the condo management at a higher rate. The legal maximum sub-meter rate is ฿4.40/unit but many condos add a "service charge" that effectively pushes costs higher. Ask which billing method applies before signing. Water is typically billed at regulated rates. Internet: fiber broadband from AIS or True is typically installed by tenants directly. Some buildings have building-wide contracts — check if you can choose your own provider. Juristic person management: the Juristic Person (JP) is the legally registered management company for the building. Good JPs maintain the building well and provide transparent financial reporting. Poor JPs allow deferred maintenance, mismanage funds, and create owner-renter conflicts. Review annual meeting minutes if possible before buying. Key due diligence: request the last 3 years of financial statements from the JP. Check the building's insurance policy. Verify the ratio of owner-occupied vs rental units (high rental ratio sometimes correlates with poorer maintenance).
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