Condominium prices on Koh Samui in 2026 range from 85,000 to 145,000 THB per square metre, positioning the island approximately 30-40% below comparable beachfront locations on Phuket's west coast. Our analysts have monitored this market over multiple cycles and observe a clear price segmentation between districts - spreads of up to 50% per square metre depending on location and proximity to the beach.
From a legal standpoint, Koh Samui offers one significant advantage for foreign buyers: a non-Thai national can acquire a registered condominium unit on a freehold title (chanote), provided that the aggregate foreign-owned portion of the building does not exceed 49% of total usable floor area. This is the only property category in Thailand where a foreigner appears in the land registry as a full legal owner - without a company structure and without a leasehold arrangement.
At the same time, the island has hard infrastructure constraints that directly affect market liquidity and operating costs. We examine both the yield mechanics and the structural risks, district by district, below.
Quick answer
- Condominium entry prices on Koh Samui in 2026: from 2.5 million THB (studio, approx. 30 sq m) to 15+ million THB (penthouse, 120+ sq m), depending on district and specification
- Freehold title for foreign buyers is available exclusively in registered condominiums; purchase funds must be transferred from abroad in foreign currency, documented by a FET (Foreign Exchange Transaction) form issued by a Thai bank
- Estimated net rental yields: 4.2% to 6.8% per annum - Chaweng generates the highest gross income, while Maenam carries the lowest operating cost base
- Samui Airport (USM) is operated by Bangkok Airways as a private facility, keeping ticket prices 40-60% higher than equivalent routes into Phuket (HKT); no direct international flights from Western Europe
- Water and power supply constraints during the dry season (January-March) add an estimated 10-15% to annual running costs relative to fixed mainland tariffs
- Resale liquidity is materially better for condominiums than for villas - based on our estimates, average secondary-market sale times run 12-18 months for condominiums versus 18-30 months for villas
Options and scenarios
Option 1: Chaweng condominium - high-rotation short-term rental
Chaweng is the island's most densely developed zone and its primary tourist hub. New-project condominium prices along the main beachfront road start at approximately 110,000 THB per sq m. A 35 sq m studio is priced at around 3.85 million THB (roughly 88,000 USD at current rates).
Yield calculation for this scenario:
- Purchase price: 3,850,000 THB
- Gross rental income: at 1,800 THB per night and 65% occupancy (237 nights) = 426,600 THB per year
- Operating costs: rental management fee (25% of income) = 106,650 THB; common area fee = 24,000 THB; utilities = 36,000 THB; insurance and minor repairs = 15,000 THB. Total: 181,650 THB per year
- Net result before tax: 426,600 - 181,650 = 244,950 THB per year
- Net yield: 244,950 / 3,850,000 = 6.36%
Risk note: Chaweng carries the highest short-term rental competition on the island. Seasonality is pronounced - occupancy rates in May and June typically drop below 40%.
Option 2: Bophut (Fisherman's Village) - premium segment, medium-term rental
Bophut attracts higher-spending visitors and digital nomads on stays of one to three months. New-project pricing in this district runs 120,000-145,000 THB per sq m. A 50 sq m one-bedroom unit costs around 6.5 million THB.
- Purchase price: 6,500,000 THB
- Gross rental income: 45,000 THB per month x 9 months occupancy = 405,000 THB per year
- Operating costs: management fee (15%) = 60,750 THB; common area fee = 42,000 THB; utilities = 28,000 THB; repairs = 12,000 THB. Total: 142,750 THB per year
- Net result: 405,000 - 142,750 = 262,250 THB per year
- Net yield: 4.03%
The lower headline yield reflects the higher entry price. The offsetting advantages are a more stable cash flow profile and reduced unit wear from longer-stay tenants.
Option 3: Maenam - quiet district, lowest entry point
Maenam offers the island's lowest new-condominium prices: 85,000-100,000 THB per sq m. A 32 sq m studio costs approximately 2.9 million THB. The district draws families and long-stay residents seeking 6-12 month rentals.
- Purchase price: 2,900,000 THB
- Gross rental income: 22,000 THB per month x 10 months = 220,000 THB per year
- Operating costs: management fee (15%) = 33,000 THB; common area fee = 18,000 THB; utilities = 22,000 THB; repairs = 8,000 THB. Total: 81,000 THB per year
- Net result: 220,000 - 81,000 = 139,000 THB per year
- Net yield: 4.79%
Option 4: Villa vs condominium - model comparison
For reference, a two-bedroom villa in Lamai (mid-segment, leasehold 30+30 years) covering 150 sq m on a 400 sq m plot is priced from 8-12 million THB. It generates higher gross rental income (rates of 4,000-6,000 THB per night), but operating costs - garden, pool, security, roof maintenance - absorb 35-40% of gross income. Based on our estimates, net yields for a Lamai villa run 5.0-5.8%, accompanied by materially higher legal risk (leasehold or Thai company structure) and a longer resale timeline.
Comparison table
| Parameter | Chaweng studio (35 sq m) | Bophut 1-bed (50 sq m) | Maenam studio (32 sq m) | Lamai villa (150 sq m) |
|---|---|---|---|---|
| Purchase price (THB) | 3,850,000 | 6,500,000 | 2,900,000 | 10,000,000 |
| Approx. USD equivalent | ~105,000 | ~177,000 | ~79,000 | ~272,000 |
| Ownership structure | Freehold (condo) | Freehold (condo) | Freehold (condo) | Leasehold 30+30 |
| Gross income / year (THB) | 426,600 | 405,000 | 220,000 | 550,000 |
| Operating costs / year (THB) | 181,650 | 142,750 | 81,000 | 209,000 |
| Net result / year (THB) | 244,950 | 262,250 | 139,000 | 341,000 |
| Net yield | 6.36% | 4.03% | 4.79% | ~3.4-5.8% |
| Rental model | Short-term | Medium-term | Long-term | Short-term premium |
| Avg. resale timeline | 12-15 months | 12-18 months | 15-20 months | 18-30 months |
| Legal risk level | Low | Low | Low | Medium-high |
Risks and mistakes
Airport monopoly at USM. Samui Airport is privately operated by Bangkok Airways. One-way fares from Bangkok are typically 3,500-6,000 THB, compared with 1,200-2,500 THB on competing routes to Phuket. Runway capacity is limited to roughly 35-40 movements per day, which directly caps tourist inflows and depresses occupancy during the shoulder months. The alternative routing via Surat Thani (budget carrier, then a 2-2.5 hour ferry) reduces the island's appeal for premium short-stay visitors.
Water and power infrastructure. Koh Samui has no stable connection to the mainland grid. Dry-season supply interruptions (January-March) are a recurring operational issue. When we review off-plan projects, we verify that the building specification includes dedicated water retention tanks and backup generators.
Limited contractor pool. Fewer construction and maintenance firms operate on the island than on Phuket. Per 2026 market data, building costs on Samui run 15-25% higher than for equivalent projects on Phuket. Off-plan delivery delays of 6-12 months are common.
The 49% foreign quota. In high-demand projects, the foreign allocation is frequently sold out during pre-sale phases. Before paying any reservation deposit, obtain written confirmation from the developer that the specific unit falls within the foreign ownership quota.
Withholding tax on resale. The sale of a condominium by a foreign national triggers a withholding tax collected at the Land Department. The effective rate depends on the holding period and the official assessed value. For holdings below five years, the effective burden can reach 5-6% of the transaction value - this should be factored into exit modelling from the outset.
Tax residency and double taxation. Thailand has a Double Taxation Treaty (DTT) in force with a number of countries, including several in the EU. Rental income from Thai property is taxable in Thailand, but buyers who remain tax-resident in their home country may also be required to declare that income domestically, applying the proportional credit method. We recommend obtaining tax advice specific to your residency situation before completing any purchase.
A common modelling error: ignoring access costs. Expensive flights to Samui add a real cost to any owner who plans to use the property personally. For an investor visiting for 4-6 weeks per year, the incremental flight cost relative to Phuket can represent a meaningful drag on effective returns - a factor we incorporate into our site-visit briefs.
FAQ
Can a foreigner buy a condominium on Koh Samui on freehold title?
Yes. A foreign national can acquire a unit in a registered condominium on full freehold title, provided the aggregate foreign-owned share of the building does not exceed 49% of total usable area. Purchase funds must originate from abroad in foreign currency. The receiving Thai bank issues a FET (Foreign Exchange Transaction) form documenting the transfer, which is required at the Land Department to register foreign ownership.
What is the lowest entry price for a new condominium on Koh Samui in 2026?
Based on our current data, the lowest prices in new-project condominiums start at around 2.5 million THB (approximately 68,000 USD) for a studio of 28-32 sq m in the Maenam district. Secondary-market listings occasionally appear below 1.8 million THB, but each requires careful verification of technical condition and remaining foreign quota availability.
What is the legal difference between a condominium and a villa for foreign buyers?
A condominium unit within the foreign quota gives full freehold ownership registered on a chanote (title deed) directly in the buyer's name. A villa typically means acquiring the building on a leasehold land arrangement (30 years with a renewal option) or through a Thai company structure - both of which carry materially higher legal risk than a condominium freehold.
Is a Koh Samui condominium a viable short-term rental investment?
In Chaweng, our estimates put net short-term rental yields at 6.0-6.5% per annum under realistic occupancy assumptions. The critical variables are seasonal occupancy swings and the property management commission, which typically runs 20-30% of gross revenue. Short-term rental operations generally require either a hotel licence or participation in a developer-managed rental pool programme.
How do you reach Koh Samui from Europe?
There are no direct flights from Western Europe to Samui. The standard routing is via Bangkok (approx. 10-11 hours), then an onward Bangkok Airways flight to USM (approx. 1 hour), with one-way fares of 3,500-6,000 THB. An alternative is to fly to Surat Thani on a low-cost carrier (800-1,500 THB) and take the ferry to the island (2-2.5 hours, 400-600 THB per person).
What are the monthly running costs for a condominium on Koh Samui?
Common area fees (CAM charges) run from 40 to 80 THB per sq m per month depending on project standard. For a 35 sq m unit, that equates to 1,400-2,800 THB per month. Utilities add approximately: electricity 1,500-3,500 THB, water 200-500 THB, and internet 600-900 THB per month.
Are condominium prices on Koh Samui rising?
Based on data we track, new-project condominium prices on Koh Samui increased at a rate of 4-7% per annum over 2023-2025. Secondary-market prices moved more slowly - roughly 2-3% per annum - primarily reflecting constrained liquidity relative to Phuket.
Which Koh Samui district performs best for investors?
The answer depends on strategy. Chaweng maximises short-term rental income. Bophut offers stability in the upper-mid segment with stronger capital appreciation potential per our current assessments. Maenam provides the lowest entry cost. Lamai represents a mid-range price point with a growing tourist base. In our yield tables, Chaweng leads on net rental return and Bophut leads on projected value appreciation.
Is a Thai bank account required to buy a condominium?
A Thai bank account is not a formal legal requirement for the purchase itself, but it is practically necessary for paying ongoing costs such as utilities and common area fees. Opening an account at a Thai bank typically requires appropriate visa documentation and can be completed in one to two business days in person at a branch.
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