Koh Samui vs Phuket: Where Should You Buy a Villa in 2026?

How much does a villa cost in Koh Samui vs Phuket in 2026?

The median villa price in Koh Samui is THB 17.2 million, roughly €453,000 at 38 THB per euro (Samui & Koh, Property Market Report 2026). In Phuket, villas and landed properties trade at a median of THB 70,000 per square metre, about €1,840 per sqm, with three-bedroom villas reaching THB 137.9 million (≈ €3.6 million) in Cherngtalay, the island's most active submarket, where villa prices peak (C9 Hotelworks, Phuket Property Market Update, May 2025).

Entry points differ sharply. In Phuket, entry-level pool villas and townhomes typically start around THB 10–15 million, roughly €263,000–395,000 (Asia Lifestyle Magazine, 2025). On Koh Samui, new off-plan developments open lower: Casa Una Residence in Chaweng, developed by The Circle Samui, starts at THB 5.5 million (≈ €145,000) for a one-bedroom pool villa — less than a third of the island's median villa price. Delivery is scheduled for Q4 2027, with construction started in July 2026.

Branding carries a measurable premium in Phuket: branded villas and landed properties are priced up to twice as high as non-branded stock, THB 162,000 versus THB 73,000 per square metre (C9 Hotelworks, May 2025). Koh Samui's villa market remains dominated by smaller independent developments, which partly explains its lower entry prices.

Which island has the stronger tourism engine for rental demand?

Phuket International Airport recorded 8.8 million passenger arrivals in 2025, roughly three times Koh Samui's 2.78 million arrivals in 2024 (C9 Hotelworks, Phuket Hotel & Tourism Market Update 2026; Samui Hotel & Tourism Market Review, June 2025). Total passenger traffic through Phuket airport reached 17.4 million in 2025, up 1.5% year on year, with 10 million international travellers (The Thaiger, 2026). Phuket wins decisively on raw visitor volume.

Momentum, however, currently favours Koh Samui. Samui's air arrivals grew 21% in 2024, exceeding the pre-pandemic 2019 level of 2.42 million, and rose a further 9% between January and April 2025 (C9 Hotelworks & CAAT, June 2025). Samui's hotel occupancy rose 12% in 2024 with average daily rates up 9%, while Phuket's occupancy declined 6% in 2025 even as rates rose 5% (C9 Hotelworks, 2025–2026).

The source markets also differ. European travellers accounted for 56% of Samui's international arrivals in 2024, led by Germany (16%), the United Kingdom (11%) and France (10%) — a clientele known for longer stays (C9 Hotelworks, June 2025). Phuket's largest visitor source markets in 2025 were Russia, India and China (The Thaiger, 2026), and C9 Hotelworks reports that residential demand there is strongest among buyers from Russia, Europe and Bangkok (May 2025).

Where is oversupply the bigger risk: Phuket or Koh Samui?

Phuket had 40,600 residential units for sale across 343 active developments as of Q1 2025, including 33,704 condominiums and 6,896 villas and landed homes (C9 Hotelworks, Phuket Property Market Update, May 2025). C9's own assessment is that in this 'marketplace with robust inventory', projects with weak unique selling points 'are expected to underperform as the next property cycle approaches'. Older projects are also feeding a growing resale layer: non-branded primary-market condominiums average THB 139,000 per square metre, a 39% premium over the THB 100,000 secondary-market average (C9 Hotelworks, May 2025).

Koh Samui's supply picture is far more constrained. The island counted 634 registered accommodation establishments with 24,188 hotel keys in 2024, and hotel supply has grown at a compound rate of just 1% per year since the pandemic (C9 Hotelworks, June 2025). The hotel pipeline to 2028 totals 776 keys across four properties, versus 4,216 keys across 20 properties in Phuket over 2025–2028 (C9 Hotelworks, June 2025 and February 2025).

For a villa investor, this asymmetry matters: rental rates hold up better where new competing stock arrives slowly. Phuket's 2025 pattern — rates up 5% but occupancy down 6% — is consistent with demand being spread across a growing base of rooms and rental units (C9 Hotelworks, 2026).

What rental income and returns can a villa realistically generate?

In Phuket, large pool villas of four bedrooms or more average THB 179,445 per month (≈ €4,720) in short-term rentals, and three-bedroom villas average THB 54,000 per month, based on listing data compiled by C9 Hotelworks and FazWaz (May 2025). Villas dominate the holiday-rental segment for families and groups, while one-bedroom condominiums lead the long-term market, with average monthly rents starting at THB 22,541 (C9 Hotelworks & FazWaz, May 2025). Operator-reported portfolio data from Phuket shows net yields of 7.8% to 8.4% at 72–78% occupancy for professionally managed resort villas (SKHAI/STAYLAR, 2026).

Koh Samui has no comparable island-wide rental study, so buyers there rely mainly on developer estimates. Casa Una Residence publishes its estimated rental income in euros on each villa page, with every cost itemised line by line: Airbnb/Booking commission (15% of gross), rental management and concierge (15%), land lease rent (THB 7,000, 9,000 or 12,500 a month depending on the villa, rising 5% every five years), co-ownership fees (THB 8,000–8,500 a month), water (THB 250 a month) and a 5% maintenance and furniture reserve. Electricity is metered and billed at the public PEA tariff, so it depends on each villa's consumption and is not included. After these costs, estimated net income comes to roughly €17,400–25,300 a year for the one-bedroom villa, €24,800–35,500 for the two-bedroom and €42,000–59,200 for the four-bedroom, under three occupancy scenarios (65%, 75% and 88%). These are developer estimates before electricity, income tax, property tax and insurance, not guaranteed income, and every assumption (nights rented, nightly rate, costs) is shown so that buyers can check it.

Regulation affects both islands equally: renting any unit for fewer than 30 days without a hotel licence is technically illegal in Thailand, and authorities have stepped up enforcement since late 2023, primarily targeting condominiums (C9 Hotelworks, May 2025). Buyers planning short-term rental income should verify the licensing arrangement of the specific project before committing.

Can foreigners own a villa in Thailand, and does it differ by island?

Thai property law is national, so the ownership framework is identical on Koh Samui and Phuket. Foreigners cannot own land freehold; the standard structure for a villa is a 30-year registered leasehold on the land, while condominium units can be owned freehold within a 49% foreign quota per building. Nominee arrangements — holding land through Thai stand-ins — are explicitly illegal.

Off-plan purchases on both islands typically follow construction-linked instalments, running from a small reservation deposit (around 5%) through staged payments tied to build milestones, with a final balance at handover. Independent legal review of the lease and payment schedule by a local lawyer is standard practice for foreign buyers, whichever island they choose.

Koh Samui or Phuket: which should you choose in 2026?

Phuket offers roughly three times Koh Samui's visitor volume but carries 40,600 competing units for sale, while Koh Samui combines lower villa entry prices with a hotel supply pipeline of just 776 keys to 2028 (C9 Hotelworks, 2025–2026). Phuket suits buyers who prioritise market depth, resale liquidity, direct international flights and an established rental ecosystem — and who can accept intensifying competition, reflected in its 6% occupancy decline in 2025.

Koh Samui suits buyers targeting a supply-constrained market with positive momentum: arrivals up 21% in 2024 and 9% in early 2025, occupancy and rates both rising, a 56% European visitor base, and median villa pricing (THB 17.2 million) that still allows new one-bedroom pool villas from THB 5.5 million. Its structural constraints — a privately operated airport with limited direct international routes — are the same factors that keep supply growth near 1% per year. A planned 30-kilometre sea bridge, with construction scheduled from 2029 subject to cabinet approval, could change that equation in the 2030s (EXAT, via C9 Hotelworks, June 2025).

Frequently asked questions

What is the median villa price in Koh Samui in 2026?

The median villa price in Koh Samui is THB 17.2 million, approximately €453,000 at 38 THB per euro (Samui & Koh, Property Market Report 2026).

Are villas cheaper in Phuket or Koh Samui?

Entry-level pool villas and townhomes start around THB 10–15 million in Phuket (Asia Lifestyle Magazine, 2025), while new off-plan villas on Koh Samui start from about THB 5.5 million in Chaweng. At the top end, Phuket's Cherngtalay villas reach THB 137.9 million (C9 Hotelworks, May 2025).

Can a foreigner own a villa freehold in Thailand?

No — foreigners cannot own land freehold in Thailand, on either island. The standard villa structure is a 30-year registered leasehold, while condominiums can be owned freehold within a 49% foreign quota per building.

How many visitors do Phuket and Koh Samui receive?

Phuket airport recorded 8.8 million passenger arrivals in 2025, while Koh Samui recorded 2.78 million in 2024, up 21% year on year (C9 Hotelworks, 2025–2026). Phuket's total two-way passenger traffic reached 17.4 million in 2025 (The Thaiger, 2026).

Are short-term villa rentals legal in Thailand?

Renting for fewer than 30 days without a hotel licence is technically illegal under Thai law, and enforcement has increased since late 2023, mainly against condominiums (C9 Hotelworks, May 2025). Buyers should verify the licensing status of a specific project before counting on nightly rental income.

Which nationalities drive demand on each island?

Europeans made up 56% of Koh Samui's international arrivals in 2024, led by Germany (16%), the UK (11%) and France (10%) (C9 Hotelworks, June 2025). Phuket's largest visitor source markets in 2025 were Russia, India and China (The Thaiger, 2026), and residential demand there is strongest among buyers from Russia, Europe and Bangkok (C9 Hotelworks, May 2025).

Is a bridge to Koh Samui really planned?

Yes — the Expressway Authority of Thailand is planning a 30-kilometre sea bridge to Koh Samui, with construction scheduled to begin in 2029, though the project still requires final cabinet approval (C9 Hotelworks, June 2025).