Navy - Homesteading or single base assignment?

Hello,

Just a quick question for those who know - for those of us nurses taking our first CONUS assignment (new grad), does the Navy offer any type of homesteading (Air Force had this when I was enlisted). If not, is it policy to basically stay at your assigned base unless you put in for orders? Example, if stationed in Virginia as my first assignment, will I be naturally PCS'd in a few years or do they require we put in orders to do so?

Considering whether i'd like to buy a house in the next 5 years

Thanks!