Duplex Plans

I am planning on purchasing a duplex, and I will live in one side, is this still an investment property?
Rates for an investment property are about 1% higher than just a regular house…if I live in one side, do I get the 5% rate or 6%??????? Please help- 1% makes a lot of difference when budgeting for a new house!
As long as you are living in one side it will be considered your primary residence which means you get the lower interest rate and you don’t have to put as much money down!
1912 8th St, NW – SWEET PENTHOUSES – Five New Condos @ U Street METRO