Take I-270 S toward Washington.  Take the I-370/Sam Eig Hwy. exit, Exit 9B-A, toward Metro Station (go 0.24 miles).  Merge onto I-370 E via Exit 9A on the Left toward Metro Station/Gaithersburg (go 1.71 miles).  Merge onto S Frederick Ave/MD-355 N toward Gaithersburg/Town Center (go 1.02 miles).  Make a U-Turn onto S Frederick Ave/MD-355 (go 0.1 miles).   610 S Frederick Ave is on the Right.

Take I-495 N/Capital Beltway.  Keep Left to take I-270-SPUR N via Exit 38 toward Rockville/Frederick (go 2.02 miles).  I-270-SPUR N becomes I-270 N (go 3.86 miles).  Merge onto I-270 Local N via Exit 8 toward Shady Grove Road (go 1.64 miles).  Take EXIT 8 toward Shady Grove Road/Redland Blvd. (go 0.04 miles).  Take the Shady Grove Rd. East ramp toward Gaithersburg (go 0.28 miles).  Merge onto Shady Grove Rd. (go 0.84 miles).  Turn Left onto Frederick Rd/MD-355 N. Continue to follow MD-355 N (go 0.75 miles).  Make a U-Turn onto S Frederick Ave/MD-355 (go 0.1 miles).   610 S Frederick Ave is on the Right.