I'm at a school on South 22nd Street which is actually operated out of a large church.  I am very far from where you are at but going north a block first and then west is a good start.  Okay so you'll need to go west until you hit The Food Trust marketplace and that's where you'll finally hit South 22nd Street (told you it was far) and you'll head north and you'll pass a post box go another 2 blocks and you'll see the church the school is in on the east side of the road. If you get to a garden you've gone 2 1/2 blocks too far.