Rates on 30-year and 15-year mortgages rose this week, Freddie Mac said Thursday in its weekly survey of rates across the nation.

Rates on benchmark 30-year fixed-rate mortgages averaged 6.32 percent, up from 6.30 percent last week.

Thirty-year mortgage rates hit a low this year of 5.38 percent during the week ended March 18. Since then, they have slowly moved upward.

Rates for 15-year fixed-rate loans averaged 5.70 percent, up from 5.67 percent last week. Rates for one-year adjustable rate mortgages were at 4.13 percent, down from 4.14 percent last week.

The recent rise in mortgage rates comes in anticipation that the Federal Reserve will raise a key short-term interest rate for the first time in four years on June 30.

"The recent increase in mortgage rates has given the housing market a slight breather from the frantic pace in lending that has been prevalent over the last few years," said Frank Nothaft, Freddie Mac's chief economist.

A year ago, rates on 30-year mortgages averaged 5.21 percent, rates for 15-year mortgages stood at 4.60 percent and rates on one-year ARMs averaged 3.54 percent.

The nationwide averages for mortgage rates do not include add-on fees known as points. Thirty-year and 15-year loans each carried an average fee of 0.5 point this week, while one-year ARMs carried an average fee of 0.7 points.

AWARDS . . . The Housing Association of Nonprofit Developers this week announced winners of its local housing achievement awards, sponsored by Freddie Mac. Recognized at the association's annual meeting were Victory Housing of Bethesda (nonprofit developer of the year); Gum Springs Glen by Fairfax County Redevelopment and Housing Authority (best project: Virginia); Meadowbrook Run Apartments by Bank of America Community Development (best project: Washington); Artists' Housing in Mount Rainier by Housing Initiative Partnership (best project: Maryland); Fifer Family Learning Center by Community Lodgings of Alexandria (best community life program: Virginia); Housing Production Trust Fund Advocacy Campaign by Coalition for Nonprofit Housing and Economic Development (best community life program: Washington); Tenants' Council by Housing Unlimited of Rockville (best community life program: Maryland); Takoma Tower by Victory Housing (financial transaction of the year); and Hamel Builders (Virginia S. Peters Nonprofit Friend of the Year).

EVENT . . . "Building Green" is the subject of a lunch program at 12:30 p.m. Monday at the National Building Museum, 401 F St. NW, Washington. Helen English of the Sustainable Buildings Industry Council is to discuss how to find information on community and site planning, renewable energy, energy efficiency, water use, indoor environmental quality and green materials. Admission is free. For information, call 202-272-2448; Web site: www.nbm.org.

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