As of 2026, the median house price in Koh Samui is about THB16m-17m, or roughly USD445,000-470,000 and EUR410,000-435,000, but the real budget depends heavily on view, road access, land title, water supply, and whether the house is built for personal use or villa rentals.
[VARIABLE INTRO GREEN HTML] [VARIABLE COVER HTML]We constantly update this blog post so house prices in Koh Samui stay useful for buyers looking at the market in 2026.
Koh Samui is a villa-led market, so this guide focuses only on houses, pool villas, landed homes, and house-plus-land budgets.
The goal is simple: help a foreign buyer understand what houses cost in Koh Samui in 2026 before speaking with agents, sellers, or lawyers.
And if you’re planning to buy a property in this place, you may want to download our pack covering the real estate market in Koh Samui.
Fact-checked and reviewed by our local expert
Daniel Rouquette 🇫🇷
CEO & Co-Founder at Villa Finder
How much do houses cost in Koh Samui as of 2026?
What's the median and average house price in Koh Samui as of 2026?
As of 2026, the estimated median house price in Koh Samui is about THB16m-17m, or roughly USD445,000-470,000 and EUR410,000-435,000, while the estimated average house price in Koh Samui is closer to THB25m-30m, or roughly USD695,000-835,000 and EUR640,000-770,000.
Most normal house sales in Koh Samui in 2026 sit roughly between THB6m and THB45m, or about USD165,000-1.25m and EUR155,000-1.15m, because that range covers simple inland houses, typical pool villas, and many sea-view family homes.
The median and average house prices in Koh Samui are different because a small number of luxury sea-view villas and beachfront estates above THB50m push the average up, while the median better reflects the budget of a normal villa buyer.
At the median price in Koh Samui in 2026, a buyer can usually expect a 3-bedroom pool villa of about 200-350 sqm, often on a 400-800 sqm plot, with stronger choices in Mae Nam, Lamai, Bang Por, Bophut inland, or Plai Laem away from the best views.
What's the cheapest livable house budget in Koh Samui as of 2026?
As of 2026, the cheapest realistic budget for a livable house in Koh Samui is about THB5m-6.5m, or roughly USD140,000-180,000 and EUR130,000-165,000.
At this entry-level price in Koh Samui, livable usually means a small inland house or compact villa with basic finishing, road access, electricity, water storage, and enough condition to move in without a full rebuild.
The cheapest livable houses in Koh Samui are usually found in Nathon, Ang Thong, Na Mueang, Taling Ngam, Lipa Noi, inland Mae Nam, and some inland parts of Lamai and Maret.
[VARIABLE WHAT YOU CAN GET BUDGET]That lower budget can work well for a patient buyer, but in Koh Samui it is especially important to check title, road rights, drainage, water supply, and whether the price is low because the house is far from short-let demand.
How much do 2 and 3-bedroom houses cost in Koh Samui as of 2026?
As of 2026, a typical 2-bedroom house in Koh Samui costs about THB8m-13m, or roughly USD220,000-360,000 and EUR205,000-335,000, while a typical 3-bedroom house in Koh Samui costs about THB12m-20m, or roughly USD335,000-555,000 and EUR310,000-515,000.
A realistic 2-bedroom house price range in Koh Samui in 2026 is THB5m-8m for a simpler inland house and THB8m-13m for a decent pool villa in a more buyer-friendly area.
A realistic 3-bedroom house price range in Koh Samui in 2026 is THB12m-20m for the mainstream market and THB20m-35m for stronger sea view, newer design, or Bophut, Chaweng Noi, Choeng Mon, or Plai Laem location.
The normal premium for moving from a 2-bedroom to a 3-bedroom house in Koh Samui is about THB4m-8m, or roughly USD110,000-220,000 and EUR100,000-205,000, because the third bedroom often comes with a larger pool, larger land plot, and better rental appeal.
How much do 4-bedroom houses cost in Koh Samui as of 2026?
As of 2026, a typical 4-bedroom house in Koh Samui costs about THB22m-35m, or roughly USD610,000-970,000 and EUR565,000-900,000.
A realistic 5-bedroom house price range in Koh Samui in 2026 is THB25m-35m for older or inland villas and THB35m-60m, or roughly USD970,000-1.7m and EUR900,000-1.5m, for sea-view or premium rental villas.
A realistic 6-bedroom house price range in Koh Samui in 2026 is THB55m-100m+, or roughly USD1.5m-2.8m+ and EUR1.4m-2.6m+, because most 6-bedroom houses are luxury rental villas, branded residences, or large hilltop and beachfront estates.
Please note that we give much more detailed data in our pack about the property market in Koh Samui.
How much do new-build houses cost in Koh Samui as of 2026?
As of 2026, a typical new-build house in Koh Samui costs about THB10m-18m for a 2-3 bedroom pool villa, or roughly USD280,000-500,000 and EUR255,000-460,000, while larger new sea-view villas often start around THB25m-40m.
New-build houses in Koh Samui usually carry a 10%-25% premium over similar older resale houses, and the premium is highest in Bophut, Chaweng Noi, Choeng Mon, Plai Laem, and Bang Por when the villa is modern, furnished, and rental-ready.
How much do houses with land cost in Koh Samui as of 2026?
As of 2026, a typical house with land in Koh Samui costs about THB12m-25m, or roughly USD335,000-695,000 and EUR310,000-640,000, for a normal 3-bedroom villa with a usable private plot.
In Koh Samui, a house with land usually means a villa on about 400-800 sqm of land, while larger family villas often sit on 800-1,600 sqm and true estate-style homes often start at 1 rai, or 1,600 sqm.
[VARIABLE HOW MUCH LAND]The important Koh Samui detail is that a large hillside plot can be cheaper on paper but more expensive in real life if it needs road works, retaining walls, drainage, extra water storage, or electrical upgrades.
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Where are houses cheapest and most expensive in Koh Samui as of 2026?
Which neighborhoods have the lowest house prices in Koh Samui as of 2026?
As of 2026, the lowest house prices in Koh Samui are usually in Nathon, Ang Thong, Na Mueang, Lipa Noi, Taling Ngam, inland Mae Nam, and inland Lamai or Maret.
Typical house prices in these cheaper Koh Samui areas range from about THB5m to THB18m, or roughly USD140,000-500,000 and EUR130,000-460,000, depending on condition, land size, and distance from the beach.
These neighborhoods have the lowest house prices in Koh Samui because many homes are farther from the airport, Fisherman’s Village, Chaweng nightlife, international schools, and the strongest short-term villa rental demand.
Which neighborhoods have the highest house prices in Koh Samui as of 2026?
As of 2026, the three highest-priced house areas in Koh Samui are Chaweng Noi, Choeng Mon, and Bophut or Fisherman’s Village, with Plai Laem and prime Bang Rak beachfront close behind.
Typical house prices in these premium Koh Samui neighborhoods range from about THB15m to THB70m+, or roughly USD415,000-1.95m+ and EUR385,000-1.8m+, with the highest prices reserved for sea-view, walk-to-beach, and beachfront homes.
These neighborhoods command the highest house prices in Koh Samui because they combine sea views, airport access, restaurant demand, rental demand, and easier access to the island’s main services.
The typical buyer in these premium Koh Samui areas is often a foreign lifestyle buyer, a family wanting school and airport access, or a villa investor who wants a property that can compete in the short-term rental market.
How much do houses cost near the city center in Koh Samui as of 2026?
As of 2026, houses near the main “center” areas of Koh Samui, meaning Chaweng, Bophut, Fisherman’s Village, and Bang Rak, usually cost about THB12m-30m, or roughly USD335,000-835,000 and EUR310,000-770,000.
Houses near major transit hubs in Koh Samui usually cost about THB14m-45m near Samui Airport, Bang Rak, and Plai Laem, about THB8m-22m near Mae Nam pier, and about THB5m-12m near Nathon ferry pier.
Houses near top schools in Koh Samui, including International School of Samui in Bophut and PBISS near the Bophut-Chaweng side, usually cost about THB10m-30m, or roughly USD280,000-835,000 and EUR255,000-770,000.
Houses in expat-popular Koh Samui areas such as Bophut, Fisherman’s Village, Choeng Mon, Mae Nam, Lamai, Bang Rak, and Plai Laem usually cost about THB8m-50m, or roughly USD220,000-1.4m and EUR205,000-1.3m.
[VARIABLE EXPAT GUIDE]How much do houses cost in the suburbs in Koh Samui as of 2026?
As of 2026, a house in the suburbs of Koh Samui usually costs about THB6m-20m, or roughly USD165,000-555,000 and EUR155,000-515,000, depending on whether it is a simple house or a pool villa.
Suburban houses in Koh Samui are often 20%-40% cheaper than similar houses in Bophut, Chaweng, Choeng Mon, or Plai Laem, mainly because rental demand and daily convenience are weaker.
The most popular suburban house areas in Koh Samui are inland Mae Nam, Bang Por, Lipa Noi, Na Mueang, inland Lamai, and the quieter inland parts between Mae Nam and Bophut.
What areas in Koh Samui are improving and still affordable as of 2026?
As of 2026, the best improving but still affordable areas in Koh Samui are Bang Por, inland Mae Nam, Lipa Noi, parts of inland Lamai and Maret, and Na Mueang.
Current typical house prices in these improving Koh Samui areas are about THB7m-18m, or roughly USD195,000-500,000 and EUR180,000-460,000, with sea-view or newer villas moving above that range.
The main sign of improvement is that buyers are accepting quieter locations because new villa stock, better restaurants, improved road links, and stronger long-stay demand are spreading beyond the old Bophut-Chaweng core.
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What extra costs should I budget for a house in Koh Samui right now?
What are typical buyer closing costs for houses in Koh Samui right now?
For a house in Koh Samui right now, a foreign buyer should usually budget about 4%-8% of the purchase price on top of the agreed price.
For a THB15m house in Koh Samui, this means about THB600,000-1.2m, or roughly USD17,000-33,000 and EUR15,000-31,000, including legal work, transfer-related costs, inspection, registration, and possible ownership-structure costs.
The largest closing cost category for most Koh Samui house buyers is usually the transfer-related cost package, but the most important cost for a foreign buyer is often the lawyer’s due diligence because land ownership structure is the real risk.
We cover all these costs and what are the strategies to minimize them in our property pack about Koh Samui.
How much are property taxes on houses in Koh Samui right now?
For a normal residential house in Koh Samui right now, annual property tax is often about THB3,000-15,000, or roughly USD85-415 and EUR75-385, for a typical mid-market home.
Property tax in Koh Samui is based on Thailand’s land and building tax system, where the assessed value, property use, ownership type, and whether the house is treated as residential or commercial can change the final amount.
[VARIABLE PROPERTY TAXES FEES]A villa used mainly as a short-term rental can need a higher annual budget than a private home, so a buyer should confirm the tax treatment before assuming the low residential rate applies.
How much is home insurance for a house in Koh Samui right now?
Home insurance for a house in Koh Samui right now usually costs about THB15,000-50,000 per year, or roughly USD415-1,400 and EUR385-1,300, for a normal home, and THB40,000-120,000 for larger pool villas.
The main factors that affect home insurance in Koh Samui are build value, pool and retaining-wall risk, hillside or coastal exposure, flood and storm cover, contents cover, public liability, and whether paying guests use the villa.
What are typical utility costs for a house in Koh Samui right now?
Typical monthly utility costs for a house in Koh Samui right now are about THB8,000-18,000, or roughly USD220-500 and EUR205-460, for a normal 3-bedroom pool villa.
A simple breakdown is THB5,000-14,000 for electricity, THB500-2,000 for official water or basic supply, THB1,000-4,000 for internet and garden or pool extras, and more if the villa needs trucked water in the dry season.
What are common hidden costs when buying a house in Koh Samui right now?
Common hidden costs for a Koh Samui house buyer can easily reach THB300,000-2m, or roughly USD8,000-55,000 and EUR8,000-51,000, depending on the villa’s condition and site risks.
Inspection fees in Koh Samui usually cost about THB20,000-40,000 for a normal house and THB50,000-80,000, or roughly USD1,400-2,200 and EUR1,300-2,050, for a large hillside or luxury villa.
Other hidden costs in Koh Samui include title due diligence, road-access checks, drainage fixes, water tanks, pumps, filtration, pool repairs, furniture packages, pest treatment, shared-road disputes, and common-area fees.
The hidden cost that surprises first-time Koh Samui house buyers most is water and infrastructure, because a beautiful hillside villa can still need expensive tanks, pumps, drainage, retaining walls, or private water delivery.
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What do locals and expats say about the market in Koh Samui as of 2026?
Do people think houses are overpriced in Koh Samui as of 2026?
As of 2026, many locals and expats think prime houses in Koh Samui are expensive, but the feeling is strongest in Chaweng Noi, Choeng Mon, Bophut, Plai Laem, and beachfront Bang Rak.
A well-priced Koh Samui house can sell in about 2-6 months, a normal THB15m-30m villa can take about 4-9 months, and luxury or awkward-title villas can sit for more than a year.
The main reason buyers call Koh Samui houses overpriced is not only the headline price, but the gap between asking price and real usability when road access, title structure, water supply, and rental proof are weak.
Compared with 2024 and 2025, sentiment in 2026 is more selective because buyers still like Koh Samui, but they now compare more listings and negotiate harder when a villa has weak access, weak views, or no rental track record.
[VARIABLE REAL ESTATE MARKET]Are prices still rising or cooling in Koh Samui as of 2026?
As of 2026, house prices in Koh Samui are still rising in the best villa locations, but the wider market is mixed rather than uniformly booming.
Our estimated year-over-year house price change in Koh Samui in 2026 is about 3%-7% for good mainstream villas, 5%-10% for prime sea-view villas, and flat to 3% for older inland houses.
Over the next 6 to 12 months, the most likely outcome is a two-speed Koh Samui market, with well-located, rental-ready villas holding firm while overpriced luxury villas and weak-access hillside homes face more negotiation.
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What sources have we used to write this blog article?
Whether it’s in our blog articles or the market analyses included in our property pack about Koh Samui, we always rely on the strongest methodology we can … and we don’t throw out numbers at random.
We also aim to be fully transparent, so below we’ve listed the authoritative sources we used, and explained how we used them and the methods behind our estimates.
| Source | Why we trust it | How we used it |
|---|---|---|
| C9 Hotelworks Samui Property Market Review, June 2025 | C9 is a specialist Thailand hospitality and residential market consultancy. | We used it as the main island-level benchmark for Koh Samui landed-property prices. We cross-checked its villa medians against live asking prices. |
| Bank of Thailand Residential Property Price Index | The central bank publishes official housing-price index data. | We used it for national and southern Thailand price direction. We did not use it as a direct Koh Samui price because it is not island-level. |
| FazWaz Koh Samui villa listings | FazWaz has a large live pool of Thailand property listings. | We used it to check current villa asking prices and price per sqm. We treated its figures as asking-price evidence, not completed-sale evidence. |
| DDproperty Koh Samui houses for sale | DDproperty is a major Thailand property portal. | We used it to check live supply depth and entry-level budgets. We also used it to compare area-by-area asking prices. |
| DDproperty Koh Samui villa search | It gives a villa-specific pool for Koh Samui. | We used it to avoid mixing condos with houses. We also checked bedroom-count price ranges against FazWaz. |
| Provincial Electricity Authority latest Ft | PEA is the official provincial electricity distributor. | We used the May-August 2026 Ft to estimate electricity costs. We combined it with villa usage assumptions for air-conditioning and pools. |
| Provincial Electricity Authority tariff page | PEA publishes the official provincial tariff structure. | We used it to model electricity bills for Koh Samui houses. We added a buffer for pool pumps, estate resale power, and heavy air-conditioning. |
| Provincial Waterworks Authority water tariff | PWA publishes the official water tariff for Samui. | We used it to estimate official water costs. We added a Samui-specific reserve for tanks, pumps, wells, and dry-season trucked water. |
| Bank of Thailand economic outlook | It gives the official macro backdrop for Thailand. | We used it to understand the wider 2026 housing environment. We did not use it to price individual Koh Samui houses. |
| International School of Samui | ISS is one of Koh Samui’s main international schools. | We used it to identify school-driven demand around Bophut. We then used property portals for nearby house prices. |
| PBISS International School of Samui | PBISS is a major international school on the island. | We used it to understand family demand near Bophut and Chaweng. We paired that location context with live house listings. |
| PWA water tariff calculator | It is the official PWA calculator for water charges. | We used it to sanity-check monthly water estimates. We still added a local reserve because Samui water supply can be irregular. |