Cambodia is one of the few countries in Southeast Asia that has been making it simpler for foreigners to buy property. In 2010 Cambodia passed the Foreign Ownership Property law; this allows foreigners to purchase up to 70% of the units above the ground floor in apartment buildings.
Overnight the country became one of the easiest places for a foreigner to invest in Asian property. This quickly caught the eye of international developers, who began launching large projects aimed at overseas buyers. These buyers were mostly Chinese looking to diversify into real estate, but there are also buyers from Singapore and Hong Kong, where property prices are sky high.
In full: https://internationalliving.com/real-estate-in-phnom-penh/