1986

Sandy Spring National Bank moves headquarters into new Willard H. Derrick Building on site of old Olney Inn

1986

Sandy Spring Museum moves to Tall Timbers, former home of Dr. and Mrs. Charles C. Tumbleson

1990

Brooke Grove Elementary School opens

1992

Rosa M. Parks Middle School opens; school openings reflect explosive growth particularly in the Olney area

1993

Sandy Spring Meadows, a 50-unit public housing project, opens in Sandy Spring village

1994

Brookeville celebrates Bicentennial; Mrs. Helen Bentley donates land for new museum in honor of husband Jack

1997

Grand opening of new Sandy Spring Museum, located at Bentley Road and Rt 108; Sharp Street United Methodist Church celebrates 175th anniversary

1998

New Hampshire Avenue widened to four lanes from Colesville north to Brown's Corner