Louis Tomlinson: I Got My Baby Mama a Modest House ... And Child Support is on the Way

Louis Tomlinson is providing for his baby and baby mama, but the digs are modest and the jury is out on child support.

We've learned Briana Jungwirth and their son are living in a 3 bedroom home in Calabasas ... a far cry from the reported $10 million mansion he reportedly bought her. We're told the home is in the hundreds of thousands of dollars ... not in the millions.

We're told Briana is paying for the furniture and Louis isn't exactly opening the bank vault.

Louis is renting his own place in L.A. so he can be closer to his son. We're told it's a lot nicer than Briana's digs.

The new parents are getting along, but they have not settled on a child support figure yet. There are reports she wants $600k a year. That may well be in the universe of possibilities, but a lot depends on his income and the needs of the child ... that's the way it's done in California.

Briana is telling her friends she's not using the baby as a meal ticket ... getting help is fine, but she insists she won't get greedy.