Developments in real estate in the Washington area:

* The groundbreaking for the Attman-Glazer Professional Office Building, at Calvert and Clay streets in Annapolis, will be held today at 10 a.m. The site is being developed in cooperation with the Maryland Department of Economic and Community Development.

* Pulsecom Division will build a 138,000-square-foot headquarters and production facility in the Dulles Aerospace Industrial Park. The groundbreaking ceremony was held last week at the site.

* Trible's Inc., a local distributor of appliance, heating, ventilating and air conditioning parts, recently purchased a 60,000-square-foot warehouse and office facility on 15 acres in Oxon Hill.

* E-Systems Inc., a high technology firm with headquarters in Dallas, Tex., has leased a 200,000-square-foot building in the High Ridge Corporate Office Park in Fairfax. The space will be used to support expansion of the company's Melpar Division, which has offices in Falls Church.

* Allstate Leasing of Garrison, Md., has acquired property on Shady Grove Road in Gaithersburg, where it plans to build a vehicle leasing and service facility. The company currently operates leasing centers in Baltimore and in Atlanta, Ga.

* An historic building at 515 N. Washington St. in Old Town Alexandria was sold recently for over $1 million. The 24,750-square-foot building, which is 135 years old, will be renovated and used as offices by the law firm Stevens, Davis, Miller and Mosher.

* Two office buildings in the Prosperity Business Campus in Fairfax are currently under construction, with occupancy scheduled for fall of 1982. The buildings are 2701 Prosperity Ave., which will be four stories with 57,679 square feet of space, and 2751 Prosperity Ave., with 91,616 square feet and six stories. The buildings are near the future Dunn Loring Metro stop.

* Stamp Beech Associates of Rockville recently opened for occupancy the Marlow Professional Center in Marlow Heights. Units are now being sold and rented.

* Future Homemakers of America recently announced that it has launched the final phase of a $3 million campaign to build its national headquarters in Reston. The group expects to move into the 30,000-square-foot building in the fall of 1982.

* Friesen International, a hospital consulting firm, recently signed a 10-year lease for 12,700 square feet of office space at 6833 Beverly Road in McLean. The total aggregate lease value is over $1.6 million. The building is owned by Parcel 30A Associates. It was developed by Sigal Development Corp. Friesen International, a division of American Medical International, is relocating from 1055 Thomas Jefferson St. NW.