Buying property in Choeng Mon, Koh Samui, ThailandA Choeng Mon villa's income depends on a licence and on the season.

These figures are for Koh Samui as a whole, not for Choeng Mon. C9 Hotelworks, an independent analyst, reports that rental villas were 76.2% full in February 2024 and 38.7% full in September, against 56.6% across the year. The average stay was 4.6 nights.

C9 counted 3,055 rental villas on the island in 2025, typically in small developments and run for their owners by outside operators.

Stays that short meet the law on hotels. Letting for less than 30 days at a time can be treated as a hotel business under Thailand's Hotel Act, which normally requires a hotel licence. A simpler registration exists only for premises with no more than 8 guest rooms and no more than 30 guests at a time.

From: C9 Hotelworks; FRANK Legal & Tax

It has not been verified whether apartments sold in Choeng Mon carry registered condominium title, or instead company shares, a lease, or rights to the building only. The difference decides what you own.

An environmental protection notice for Surat Thani province took effect on 22 May 2025 for five years. It covers Bo Phut subdistrict, which contains Choeng Mon. The law firm Lex Bangkok reports that it sorts land on Koh Samui by height above sea level: below 80 metres, 80 to 140 metres, and above 140 metres, where a building may be no taller than 6 metres.

Lex Bangkok also reports that on land with a slope of 35% or more only single detached houses may be built, up to 6 metres high, and that a hotel or apartment building within 50 metres of the shoreline needs a full environmental impact assessment, whatever its size.

From: Office of Natural Resources and Environmental Policy and Planning; Lex Bangkok (law firm's reading of the notice)

ThinkHazard, published by GFDRR and the World Bank, rates coastal flooding for Ko Samui District as High. That means potentially damaging waves are expected to flood the coast at least once in the next 10 years.

It also rates landslide and cyclone hazard as High. Tsunami and urban flood are rated Low, and river flood Very low.

No dated flood, erosion or slope assessment is held for Choeng Mon, and no insurance quotations.

From: GFDRR / World Bank, ThinkHazard

Rain at the Ko Samui weather station peaks in November at 489.6 mm, with 290.2 mm in October and 209.1 mm in December. February to April is the driest period, at 57.8 to 77.8 mm a month. Average daytime highs run from 29.0 °C in January to 32.6 °C in May.

Samui International Airport is in Bo Phut subdistrict, the same subdistrict as Choeng Mon. The district's state hospital, Koh Samui Hospital, is in Ang Thong subdistrict.

The state schools that serve Choeng Mon are not recorded.

From: World Meteorological Organization; Samui International Airport; Ministry of Public Health

These figures are for Koh Samui as a whole, not for Choeng Mon. C9 Hotelworks surveyed 2,882 developer-owned homes for sale across 117 projects in June 2025: 1,513 apartments and 1,369 houses and villas.

It placed 2,030 of them, in 66 projects, in its Bo Phut area, which it describes as including Chaweng Beach and the land around the airport. That is 70% of the island's new homes on offer. Choeng Mon is in Bo Phut subdistrict, but C9 gives no figure for Choeng Mon alone.

The median (middle) asking price of an apartment was THB 88,500 a square metre, and THB 3.5 million for a one-bedroom apartment of 40 to 70 square metres. These are prices offered by developers, not confirmed sale prices.

From: C9 Hotelworks, June 2025. An independent analyst, not a government figure.