Build to order (HDB)

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Build to order (BTO) is a real estate development scheme enacted by the Housing and Development Board (HDB), a statutory board responsible for Singapore's public housing. First introduced in 2001, it consists of a flat allocation system that offers flexibility in timing and location for owners buying new public housing in the country.

Singaporeans select and apply for an apartment in their preferred location(s) from a list of launch sites. A tender for construction will be called only if the number of applicants is at least 70% of the number of apartments in a specific contract (50% since 2011), otherwise, the project is not built.