Tampa Florida homes are getting more affordable… Again.

30-year fixed mortgage rates fell for the first time in five weeks, decreasing borrowing costs for the Tampa real estate market. The average 30-year rate dropped to 4.80 percent in the week ended April 21 from 4.91 percent, according to Freddie Mac. The 15-year rate averaged 4.02 percent, down from 4.13 percent a week ago.

The housing market is still under pressure from unemployment near 9 percent, stricter loan rules and mounting foreclosures. Tampa home sales are strongest for homes selling for under $100,000, many of these are cash buyers, reflecting increased demand from investors.

Sales of existing homes increased 3.7 percent in March, with all-cash deals accounting for 35 percent of transactions, the highest since monthly tracking began in August 2008, according to National Association of Realtors. Distressed properties, which include foreclosures and short sales, made up 40 percent of all homes sold.