The Tokyo Metropolitan Government plans to impose sanctions against property developer Huser Ltd. for allegedly selling condominiums it knew to be structurally defective, sources said Tuesday.

The metropolitan government will hear from Huser President Susumu Ojima and Shoichi Inuyama, head of Huser's sales agent firm, on Feb. 17 before announcing the measures, the sources said.

Huser is suspected of violating the real estate agent law by concluding condo contracts on defective units without notifying customers of the deficiencies. The law requires developers and their agents to explain important points to buyers when contracts are concluded.