Bella Hadid turned her birthday into a family affair.

That’s right, the model turned 21 and celebrated the milestone event alongside her sister Gigi and mother Yolanda… and each of them were rocking stunning fashion ensembles along the way.

We caught up the Hadid family as they were leaving their downtown apartment before hopping into the car and heading to Bella’s surprise party at Sadelle’s.

Bella, was a vision in a sexy satin LBD with strappy heels and a high pony.

While sister Gigi wore pale blue high waisted slacks with a super sheer strapless corset top…

And mom Yolanda, went for a more restrained look… rocking a chic all black outfit and matching heels.

Earlier in the day we caught up the birthday girl making her way around New York City, and she was dressed in all white with knee high boots.

So happy 21st Bella. Here’s a stylish year.