Planning fiber for a 250-unit high-rise sounded straightforward until it clicked that enough fiber for every unit had to pass through a commercial kitchen on the way to the basement.
The plan uses approximately fourteen 24-strand single-mode fiber cables, each about 300 feet long, with one strand allocated to each unit. In quarters this tight, staging the cable in figure eights is the only way to keep the pull manageable. Fiber to the X, with 10 gig service headed to every unit.