The Rogers Park S-Court apartment is the most irregular and the most predictable courtyard type. Irregular because I can never estimate what sort of dimensions will work for an S-Court. They can be located on lots ranging from 100' deep to 170' deep, and they might accomodate as few as 20 units or more than 40. But one thing is sure-- if it's an S-Court you'll find it on a corner lot.
7001-7017 N. Wolcott
An S-Court is really the fusion of a U-Court with a more standard apartment building attached on one end and arranged to provide a narrow interior access court. Rather than construct a single U-Court (which would provide a generous amount of central green space) the S-Court maximizes nearly every square foot of a lot. It does this partly by skimping on the central court, which may read as uncomfortably narrow. And unlike an L-Court, which can sometimes borrow the perception of space from the lot next door, an S-Court will be narrow forever.
Perhaps in compensation for not having views into the interior court the side wing will often have use of a front yard. I've seen front yards that are very generous on some of these buildings, but also yards with barely room for a potted plant.
Here's my courtyard test: If you can stand in your window and unintentionally watch your cross-court neighbor do something embarrassing then the court is too narrow. As you might guess, I live in an S-Court building.