From Reston Town Center, head south toward Fair Oaks on Reston Parkway, which becomes Lawyers Rd at Fox Mill Shopping Ctr.  Lawyers Rd then bears left and becomes West Ox Road.

Once the road turns into West Ox, look for small Burke Nursery on the left. About 1/4 of a mile past the nursery, turn left onto Bennett Road; there is a left turn lane. (If you see Navy Elementary School on West Ox, you've gone too far.)

Go down Bennett Road about 1/4 mile to the second street on the right, which is Navy Drive (Dartmoor subdivision).

Turn right onto Navy Drive and 3217 is the second house on the left in the second block.