I would say the first thing to consider whenever working within the urban fabric is context. You can throw all the amenities and structures you want into the space however, if there is no context the project and design will fail. Look at the surrounding areas and study the site. Look at pedestrian traffic patterns, vehicular traffic patterns, nearby services and amenities, environmental conditions, micro-climates within the space. Does that area need more open space, seating, restaurants? Is there large cafe gathering area just a block away that everyone goes to? All these will help you understand what should go into the space and what shouldn’t. Look at design as not just objects but as a integrated landscape that not only looks great but functions within the city and provides the space that people NEED and will use. I hope that helps? I’m interested to see what you come up with! GOOD LUCK!