Our office in in the Unitarian Universalist building (by the vegetable garden) on the 2nd and 3rd Floor.
We're on the CT Transit 'J' bus line (schedule) that runs north up Whitney from downtown/Metro North/Amtrak train station and also south from Hamden/Quinnipiac University.
We're also on the Yale Shuttle Blue Line (info).
Walking from downtown New Haven will take about 25 minutes, just come stright up Whitney (take either Church or Temple Street downtown which become Whitney). Biking would take about 8 minutes.
Driving directions are below (see link). Parking is out back, up the driveway to the right of the building.