From downtown San Francisco:
Take highway 280 South,
Exit Highway 1 North (Pacifica),
Exit Skyline Blvd South (Hwy 35),
Turn left on King Drive on the second traffic light,
The condo is on your right.

From Palo Alto (280):
Take highway 280 North,
Exit Skyline Blvd North (Hwy 35),
Turn right on King Drive,
The condo is on your right.

From San Jose (101):
Take Highway 101 North,
Exit Hwy 380 at SFO (connection to 280 North),
Get on 280 North,
Exit Westborough Blvd (1st exit on 280),
On the third traffic light at King Drive, turn left (go up hill for about a mile)
After a few Stop signs, turn left on "Beacon" gas station,
Turn right on Carter Drive (1st street),
The condo is on the right.

Direction using Yahoo! Map from SFO.