There is no specific information available on the number of Build-To-Order (BTO) flats in the Lorong Chuan area. The sources provided focus on condominiums and other types of properties, but do not include details on HDB BTO flats in that particular area. For information on HDB flats, you would typically need to refer to the Housing and Development Board (HDB) of Singapore's official website or other relevant HDB resources.
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