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Koh Samui vs Phuket: Villa Investment & Holiday Comparison
Two islands, two very different rental markets. Here is the honest comparison.
Both Koh Samui and Phuket rank in Thailand’s top three holiday-island destinations and both have mature short-term rental markets. They attract different guests, have different legal regimes, and pay out differently to villa owners. This page compares the two for both guests and investor-owners, drawing on the numbers we see running villas on Samui and the data Phuket operators publish.
At a glance
| Metric | Koh Samui | Phuket |
|---|---|---|
| Island size | 228 km² (3rd largest in Thailand) | 543 km² (Thailand’s largest island) |
| Access | Samui International (USM) — Bangkok Airways dominant, premium ticket pricing | Phuket International (HKT) — 40+ airlines direct, budget options daily |
| Annual visitors (pre-pandemic) | ~2.7 million | ~14 million |
| Typical villa ADR (peak) | THB 22,000–75,000 (4-bed) | THB 25,000–90,000 (4-bed) |
| Occupancy (annualised) | 55–72% for managed villas | 58–75% for managed villas |
| Low-season dip | Oct–Nov (east-coast monsoon) | Jun–Oct (west-coast monsoon) |
| Feel | Boutique, family-led, 5-day average stay | Full-resort island, 3-day average stay |
| Build cost (villa) | THB 55,000–85,000/m² | THB 65,000–110,000/m² |
| Land cost (trophy beachfront) | THB 60m–180m/rai | THB 120m–400m/rai |
Who picks Samui, who picks Phuket
Samui is the smaller, quieter, more boutique island. Guests tend to stay longer, book further ahead, and return more often. The east-coast beaches (Chaweng, Lamai) have infrastructure and nightlife; the west and south coasts are still coconut plantations and private villas. You travel by car everywhere — the island has no real public transport — and a decent lap takes 90 minutes.
Phuket is the bigger, busier, more cosmopolitan island. It has nearly five times the visitor volume and about three times the villa supply, which means lower prices at the entry end and much deeper tail of boutique hotels. Guests tend to stay shorter (3–4 nights), move around more, and combine Phuket with Phi Phi, Krabi or Khao Lak.
Our take: if you have to pick one
Buy on Samui if you want a trophy villa, a higher ADR per square metre, and a booking base that favours longer stays and direct repeat guests. Land values on Samui have appreciated more slowly than Phuket — but rental yields are closer to parity than land prices suggest.
Buy on Phuket if you want a broader exit market, easier direct-flight access for guests from Europe and Russia, and you’re comfortable with a more hotel-competitive rental environment.
Book on Samui if you’re coming for 5+ nights or bringing multiple families. Book Phuket if you’re doing a multi-island trip and need airline-route flexibility.
Cost to own: Samui vs Phuket villa
Running cost parity is closer than you’d expect. On a 4-bed, 400 m² villa with pool:
- Samui: THB 45,000–65,000/month all-in (pool, garden, power on stand-by, basic insurance, villa manager). We run ours at ~THB 52,000/mo on average.
- Phuket: THB 50,000–75,000/month all-in. Wages are slightly higher and premium-brand maintenance contracts (e.g. for villas inside Laguna or Andara) inflate the number.
Legal and ownership basics
Both islands operate under the same Thai property law — you can own the villa (superficies or usufruct) but not the freehold land directly as a foreigner. Lease structures (30+30+30) are the common path. The difference is scale of regulation: Phuket’s hotel licensing and Koh-Phuket-specific rules (especially around the Andaman coast EIA zones) are a lot more aggressive. Samui is more lightly regulated but with the 2024 Samui City Plan update underway, both islands are tightening.
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