March 25 (Reuters) - Uber Technologies Inc said on Thursday it plans to reopen its offices at Mission Bay, San Francisco, with 20% occupancy on March 29, and provide an option for its staff to return to work on a "voluntary basis".

The ride-hailing firm had previously announced the extension of its work-from-home policy until Sept. 13.

The employees returning to office shall adhere to COVID-19 protocols such as requirement of face coverings during the initial reopening phase, maintaining safe distance and wipe down areas such as their desks, Uber said in a statement.

The company also said that employees or those with family members who are sick are required to stay at home.

(Reporting by Anirudh Saligrama in Bengaluru; editing by Uttaresh.V)