Marc Anthony Drops Mucho Dinero to Live In ... THE VALLEY!

Marc Anthony's ready to make a big commitment again ... no, not to heiress GF Chloe Green ... but to a 6,200-square-foot mansion in the San Fernando Valley. Yes ... THE VALLEY!

J.Lo's ex is laying down permanent L.A. roots, dropping around $2.5 million on a swanky Italian style villa in Encino ... this according to legal docs. He was previously renting a pad in WeHo for $23k a month.

The Downside: Owning a house in the Valley equals muy caliente weather (seriously it's terrible).

The Upside: Marc will be chillin' in the lap of luxury ... 6 bedrooms, 7.5 baths, courtyard entry with fountain, marble fireplaces, wine cellar, gym, resort-style pool, spa ... plus a separate pool house with kitchen and BBQ.