I agree with Nick. In San Joaquin County, it is the same thing. Proposition 60 & 90 are what you need to ask your realtor & lender about. I know that it is a once in a lifetime thing as the laws are written. As I understand it, there are certain counties that recipricate the "tax base" staying the same. Check with you realtor & lender to make sure they due some specific investigations into the counties you are questioning specifically. It is a wonderful thing to take advantage of. Hopefully you qualify for it.