Charging that District of Columbia policemen and firemen caused severe structural damage to a Clifton Terrace apartment building last summer when they attempted to remove a tenant who had barricaded himself inside, P. I. Properties Inc., the real estate arm of Pride Inc., filed suit yesterday asking $1 million in damages from the city government.

The suit, filed in D.C. Superior Court against the District of Columbia government and D.C. Mayor Walter E. Washington, said that police used tear and pepper gas, munitions and plastic explosives "negligently and carelessly" in trying to remove the barricaded tenant from the building at 1350 Clifton Street NW; one of three buildings in the complex.

Charlie Halleck, the former D.C. Superior Court Judge who now is in private practice filed the suit on behalf of P.I. Properties, which is headed by Mary Treadwell. P.I. Properties owns and manages the complex.

Last week, the D.C. Corporation Counsel's office filed criminal charges against P.I. Properties and Treadwell, charging them with more than 300 fire, housing, licensing and zoning violations at the 285-unit complex.

The U.S. Department of Housing and Urban Development filed for foreclosure on Clifton Terrace last June.