Justin Bieber -- I'm So Transparent ... in My New House

As the saying goes, people who live in glass houses ... now including Justin Bieber.

We've learned Biebs has moved into a landmark house near Beverly Hills ... one that was built recently but has captured the interest of architectural aficionados.

We're told the house is renting for just shy of $60K a month. He can afford it.

As we previously reported ... Justin moved out of his BH condo this week -- to the delight of his neighbors. Justin turned the building upside down.

The house is big enough so the ragers won't disturb nearby residents ... it's 6,537 square feet with a 7 car garage, 6 bedrooms and 7 bathrooms.