Five percent of samples taken from two Pavilia Farm blocks on top of Tai Wai MTR station have failed to meet the required concrete strength, the Buildings Department said yesterday.
The blocks in question are from the estate's Phase I development, namely Tower 2 and Tower 3.
The project is jointly developed by New World Development (0017) and MTR Corp (0066).
The department said it had called for a proposal for follow-up works for Phase I, and had approved the relevant strengthening works and granted consent for commencement of the works, adding that the work could be completed in a few months.
While the samples failed to meet the specified strength as shown on the building plans approved by the department, there is no obvious structural danger, the department said.
New World responded that only a few units are involved, stressing that the two towers in Phase I were confirmed to be structurally safe and the follow-up work would not affect the delivery schedule.
This comes after an earlier announcement in July that Towers 1 and 8 of The Pavilia Farm III will be demolished and rebuilt as the concrete base of its walls failed to reach standard requirement.
New World stressed that a review on Phase II shows all blocks meet statutory standards and the two towers in Phase I were confirmed to be structurally safe following assessment by registered structural engineers. "As things stand, the follow-up works will not affect the obtaining of the occupation permit and the estimated material date for the delivery of Pavilia Farm I," a spokesman said.