After 13 months of successful operation, the Housing Office at Straus Hall will close its doors on March 7, the University disclosed yesterday.

Henceforth, all graduate students seeking rooms off the University premises must take their problems to Phillips Brooks House, where a new office will open on March 10. Applications for temporary quarters by married students may also be filed at PBH. All listings of rooms, share-homes, and sub-lets should be referred to this office.

The new bureau for home hunters will be open daily except Saturday, from 9 to 12 o'clock in the morning and from 1 to 5 o'clock in the afternoon. On Saturday the office will be open in the morning only. Information may be obtained by phoning KIRkland 7600, Ext. 390.

The real estate agency of Hunneman and Company will carry on the balance of the housing activities. Matters concerning Federal housing units in the metropolitan area, applications for permanent quarters for married students, and assignments to Harvardevens and the Hotel Brunswick should be referred to Hunneman and Company's Cambridge office at 1416 Massachusetts Avenue, which will be open Monday through Friday from 9 to 5 o'clock. Hunneman and Company may be reached by phone at KIRkland 8676 any time during these hours.