Selling land on Koh Phangan seems like a good investment for building a residential vacation home or for renting out through Airbnb or monthly rentals due to its relatively good location and nearby amenities. Here is some additional information that might be helpful:

Land Area: The land has a size of 1 rai 1 ngan, which provides ample space for constructing a vacation home or any other use you have in mind.

Land Title: Having a proper land title is crucial for any land investment. Ensure that the land title is valid and free from any legal issues.

Accessibility: The presence of a private road leading to the land makes it easy to access.

Nearby Area: The proximity to important locations such as Thong Sala, Full Moon Party, and major supermarkets like Big C, Makro, and Tesco adds value and convenience for potential renters or residents.

Investment Opportunities: Renting through Airbnb or on a monthly basis could be a profitable option for generating income from this property, especially if you provide necessary amenities and maintain it well.

Convenience: Being not far from an international school is beneficial for families with children, and the proximity to a concrete road and major stores like Big C, Makro, and Tesco makes daily life more convenient.

Distance to Ferry Pier: If you’re interested in traveling to other nearby islands or regions with ferry piers, the proximity to the land could be a significant factor.