Flats at Sandy Spring 900 Olney Sandy Spring Rd, Ashton-Sandy Spring, MD is a rental apartment building with 3 floorplans available. It is located in the Ashton - Sandy Spring neighborhood of Ashton-Sandy Spring. It has apartment amenities including on-site laundry, high ceilings, and ceiling fan. It has building amenities including on-site laundry, outdoor space, on-site management, and fitness center. Cats and dogs are allowed, making it a pet-friendly building.