Most rentals aimed at foreigners in Thailand fall somewhere on a spectrum from fully furnished to bare unfurnished, and the difference shapes both your move-in budget and your monthly rent. "Fully furnished" typically means a bed, sofa, wardrobe, dining set, refrigerator, washing machine, air-conditioning, water heater, and often a television and basic kitchenware are already in place, so a tenant can move in with little more than luggage. "Semi-furnished" or "partly furnished" usually covers the built-in items and major appliances -- air-con, water heater, sometimes a fridge -- but leaves furniture, a washing machine, and small appliances to the tenant. "Unfurnished" generally means only fixed fittings that come with the unit itself, such as built-in kitchen cabinets and closets, with everything else left empty.
Condos marketed to expats, digital nomads, and corporate tenants in Bangkok, Phuket, and other major hubs are overwhelmingly furnished or semi-furnished, since owners know most foreign tenants are not planning to ship or buy a full household of furniture for a one- to two-year stay. Detached houses and townhomes are more likely to be offered unfurnished or semi-furnished, with tenants expected to supply furniture themselves. Fully furnished and serviced units, which may bundle cleaning, linens, or utilities, commonly carry a rent premium over a comparable bare unit; several Bangkok rental guides describe that premium as roughly 20-30%, though the exact figure varies by building, location, and how completely the unit is fitted out, and should be treated as a market estimate rather than a fixed rule.
Deposit and advance-rent terms are where furnished and unfurnished leases can diverge most in practice, and where Thai consumer-protection rules now matter. Under the Notification of the Contract Committee Re: Residential Property Leasing as a Contract-Controlled Business B.E. 2568 (2025), issued by the Office of the Consumer Protection Board (OCPB) and in force since September 4, 2025, any landlord leasing three or more residential units as a business is barred from collecting advance rent plus security deposit that together exceed three months' rent, must return the deposit within seven days of lease-end if there is no damage (or within 14 days if deductions for damage are made), and cannot forfeit a deposit without documented tenant fault. This notification replaced a 2019 version that had set the same three-month cap but applied only to landlords with five or more units, so more small-scale landlords are now covered. It does not apply to individual owners renting out only one or two units -- those leases still fall under the general lease provisions of the Civil and Commercial Code, which sets no statutory cap on deposits, so market custom governs.
In practice, that market custom often means furnished units -- especially fully furnished condos with appliances and furniture worth protecting -- can command a higher security deposit than a comparable unfurnished unit, on top of any rent premium. Because more value is at stake with furnished rentals, a written, dated inventory of furniture and appliance condition at move-in (ideally with photos or video attached to the lease) is the single most useful step a tenant can take to avoid deposit disputes at move-out. Confirm in the contract who is responsible for repairing or replacing provided appliances that break through normal wear versus tenant negligence, since this is rarely spelled out by default and is a frequent source of disagreement. [NEEDS VERIFICATION: exact market-average deposit amounts by furnishing tier are not published by any government source and vary by landlord, so treat any specific multiple beyond the statutory cap as anecdotal.]
For relocating tenants weighing the trade-off, furnished housing generally means faster move-in and less upfront cash outside of rent, deposit, and advance rent, while unfurnished or semi-furnished housing generally means lower monthly rent in exchange for a larger one-time furniture investment -- a calculation that typically favors furnished for stays under two years and unfurnished for longer-term settling in.