From Fairfax County Parkway (Rt. 7100) North (Driving north from Springfield)

Turn right at light onto Fair Lakes Parkway; turn right at light onto West Ox Road; turn left onto Post Forest Drive. The Pennino Building is on your left. Or: Exit at Route 29 northbound; turn left onto Forum Drive; turn left onto Government Center Parkway. Turn left onto Post Forest Drive, The Pennino is on your right. (Click here for map.)

FROM I-66 WEST (driving from Capital Beltway, I-495 exit I-66 West)
Exit 55B, (formerly Exit 15), onto Fairfax County Parkway North (Route 7100)
Right turn onto Fair Lakes Parkway East
Right turn at light onto Monument Drive
Right turn at light onto Government Center Parkway
Government Center to your left and Pennino and Herrity Buildings to your right.

FROM I-66 EAST (driving east from Manassas)
Exit 55B, (formerly exit 15), onto Fairfax County Parkway North (Route 7100)
Right turn at light onto Fair Lakes Parkway East
Right turn at light onto Monument Drive
Right turn at light onto Government Center Parkway
Government Center Parkway to your left and Pennino and Herrity Buildings to your right.

FROM ROUTE 50 WEST (driving west from City of Fairfax)
Exit for West Ox Road South (Route 608)
Left turn at light onto Monument Drive
Right turn at light onto Government Center Parkway
Government Center to your left and Pennino and Herrity Buildings to your right.

FROM ROUTE 50 EAST (driving east from Chantilly)
Right turn at West Ox Road South (Route 608)
Left turn at light onto Monument Drive
Right turn at light onto Government Center Parkway
Government Center to your left and Pennino and Herrity Buildings to your right.

FROM ROUTE 29 SOUTH (driving west from City of Fairfax)
Right turn at light onto Forum Drive
Left turn at light onto Government Center Parkway
Government Center to your right and Pennino and Herrity Buildings to your left.

FROM ROUTE 29 NORTH (driving east from Centreville)
Left turn at light onto Forum Drive
Left turn at light onto Government Center Parkway
Government Center to your right and Pennino and Herrity Buildings to your left.

FROM FAIRFAX COUNTY PARKWAY NORTH (Route 7100) (driving north from Springfield)
Right turn at light onto Fair Lakes Parkway East
Right turn at light onto Monument Drive
Right turn at light onto Government Center Parkway
Government Center to your left and Pennino and Herrity Buildings to your right.
Or
Exit at Route 29 North
Left turn at light onto Forum Drive
Left turn at light onto Government Center Parkway
Government Center to your right and Pennino and Herrity Buildings to your left.

FROM FAIRFAX COUNTY PARKWAY SOUTH (Route 7100) (driving south from Herndon)
Left turn at light onto Fair Lakes Parkway East
Right turn at light onto Monument Drive
Right turn at light onto Government Center Parkway
Government Center to your left and Pennino and Herrity Buildings to your right.