Arriving unannounced is usually not appreciated by most landlords. You want to be sure you get to see the property if you go to the trouble to get there. Landlords want to rent to persons who look responsible and who would make good tenants. Proper attire can make a difference when there are several applicants applying for the same property. If you find a place that you like, be prepared to leave a deposit to hold it.
Landlords often ask for a holding deposit.
The receipt should specify whether the deposit is refundable should you decide not to rent the space, or how the deposit will be used if you do. At least two weeks are recommended when looking for housing. Remember that students often have odd lease terms running one or two semesters. The end of March to mid-August is the prime time to look for fall occupancy. Landlords who usually rent to students may be unwilling to have you sign a lease in advance.