Type a deal's numbers and see whether the asking price is defensible — on the income it actually produces, not the headline. Built on 2026 Koh Samui market benchmarks.
Thai law only enforces a registered lease term; renewals (the “+3+4”) are the landlord's option. Underwrite the years you can actually rely on.
A leasehold business is worth the greater of the profit it throws off over the secure years and its depreciated furniture — never the freehold-villa comps.
1 rai = 4 ngan = 400 sq.wah = 1,600 m². The tool shows price per rai and per sq.wah so you can compare plots.
Raw land usually earns nothing and costs a little each year to hold — a cash drain until you sell.