Marc Anthony -- Hey, JLo ... I've Got a New Home Too!

Not to be outdone by his estranged wife's Hamptons Beach home -- Marc Anthony plunked down some serious cash of his own for a 10,000 square foot Italian Renaissance villa in West Hollywood -- leasing the massive mansion for $23,800 a month.

Marc's new L.A. crash pad has eight bedrooms, 9.5 baths, 18-foot ceilings, two guest houses and a recording studio.

Anthony's crib doesn't have seven fireplaces like JLo's beach home -- but it does have one in the master suite ... and it's clad in Italian marble.