The temporary home of San Lorenzo Library is opening Wednesday, ahead of schedule.

The library at 395 Paseo Grande was closed at the end of last year as work began to expand the facility. Construction is expected to be completed in the summer of 2015, said Peggy Watson, head of branches for the Alameda County Library system. In the interim, the San Lorenzo library has moved to a temporary site around the corner at 16032 Hesperian Blvd.

Librarians had expected that the temporary site would not be ready until this spring.

"Everything just fell into place. AT&T was very accommodating, and we were able to set up everything faster than we thought we would," Watson said.

The site, which formerly housed a Hollywood Video, is next to the closed Lorenzo Theatre. Because the temporary facility is about half the size of the old one, some of the library's books were put into temporary storage.

When the expanded library reopens at a cost of $9.4 million, it will be almost twice as large as the current 14,000-square-foot building, with more meeting space.