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.

A local government can disqualify a developer as an authorized realty business operator or order it to suspend business.

Building inspection agency eHomes Inc. told Huser on Oct. 25 that quake-resistance data of many condos certified by a now-disqualified architect were fabricated and that the buildings did not meet quake-resistance standards, the sources said.

Ojima and the architect, Hidetsugu Aneha, were among those who conferred that day on how to address the situation.

Three days later, Huser delivered 17 units of its Grand Stage Fujisawa condominium to buyers in Fujisawa, Kanagawa Prefecture. That complex was one of 97 buildings in 18 prefectures compromised by Aneha.

Huser is also suspected of concluding contracts to sell more condos knowing the buildings were defective, the sources said.

The metropolitan government has questioned senior Huser officials six times since November, the sources said. The officials declined having any knowledge about data fabrication.

Ojima testified as a sworn witness in the Diet on Jan. 17 that his company concluded sales contracts and handed over condos even after it was notified that their quake-resistance data had been falsified.

He denied any the transactions were illegal, saying Huser hadn't recognized the significance of the data fabrication at the time.

The revelations in November that a number of suspect condos and budget hotels built using false quake-resistance data sent shock waves throughout Japan.

On Jan. 31, 309 buyers of Huser condos filed suit with the Tokyo District Court seeking to have Huser declared bankrupt in a bid to secure its assets for compensation.

Huser filed a damages suit with the same court Jan. 30, demanding 13.9 billion yen in damages from 18 local governments, accusing them of failing to properly check quake-proofing data when screening the plans for its condos.