Use the Ted Williams Tunnel. It will bring you directly to the westbound Massachusetts Turnpike (I-90) MA Turnpike West (I-90 West) Exit 13 US-30 East toward Natick/Wellesley Follow
US-30 East / Cochituate Rd for 2 miles 321 Commonwealth Rd is on right.
I-95 South Exit 26 US-20 toward Waltham/Weston Stay straight to go onto US-20 W/Weston St. Continue to follow US-20 West. (1.1 miles) Turn left onto Wellesley St. (2.0 miles) Turn right
onto MA-30/South Ave. Continue to follow MA-30. (2.9 miles) 321 Commonwealth Rd is on right.
