Chesnut Properties plans to build two office buildings at Millenia in Chula Vista. Image courtesy of Chesnut Properites.

Chesnut Properties plans to build two office buildings at Millenia in Chula Vista. Image courtesy of Chesnut Properites.

Millenia — a Chula Vista development so big that it could be its own small city — is about two-thirds finished with construction already underway on the rest of it on the east side of Chula Vista...