CORPORATE OFFICE PROPERTIES LEASES 131,451-SQUARE-FOOT OFFICE COMPLEX

COLUMBIA, MD. — Corporate Office Properties Trust has entered into a long-term lease agreement with Integral Systems Inc. for a 131,451-square-foot Class A office building within the Columbia Gateway Business Park in Columbia. The five-story facility, which is located at 6721 Columbia Gateway Dr., is slated for completion in early 2009. Integral Systems will use the facility as its new headquarters. The price of leasing was not disclosed.