Cameron Diaz -- Drops $9 Million on NYC Condo in Chelsea

Cameron Diaz just joined the likes of Harrison Ford, Katie Holmes, and Nicole Kidman as a resident of the Chelsea neighborhood in Manhattan ... shelling out a cool $9 MILLION on a swanky new condo.

The 3,022 sq. ft. luxury pad is located in the Walker Tower -- known for it's fancy-pants living spaces ... including a penthouse apartment that just sold for $55 MIL.

Cameron's relatively modest new digs comes with 3 bedrooms, 3.5 bathrooms, and a Crestron home automation system complete with iPad dock.

Building amenities include a library lounge with pantry and bar, refrigerated storage for deliveries, yoga room, and sauna.

And if all this sounds like a bargain ... maintenance and real estate tax adds up to about an extra $5K a month.