About one-year in on my recently made fort. We got about 13 dorfs.
My fort uses a single long staircase, with each floor being specialized towards a certain thing, and an occasional Floor Hatch just in case someone decides to fall down. That way they won't fall down for miles on end. Anyway, I just recently finished smoothing out the entire Hospital and loading it up with four beds, four coffers, and a traction bench. Not that fancy right now, but it'll do.
I've got bedrooms for the starting 7 and four for the free migrants that come in the first few seasons, as well as some extra ones for later. This fort is modded so that the only way to get more members (minus the free migrants) is baby making, so I won't need to clear out much room for bedrooms right this second.
Lately, I've finished mining out stockpiles for our Masons Workshop and Craftdwarfs Workshop, and I've also finished the water-filled moat to guard our combination outside, walled-off Trade Depot/Staircase down into the fort. The Trade Depot is roofed off and guarded by a bridge, walls, and water-filled moat, so I'm confident it'll hold out Goblin Sieges and the occasional ambush well enough. Once I get the necessary things, I'll probably add a gauntlet of weapon traps as well.
The only other thing of note is, since I've decided to make my Expedition Leader a full-time engraver, he's been doing all the smoothing work. He's already up to Adept, and I'm going to have him smooth out as much fortress as he can until he hits Legendary, then I'll put him to work engraving things. Surprisingly, only one kobold thief has arrived so far, and no ambushes at all. Food and booze is being constantly made and we have an insane amount of gem-studded trade goods ready to sell. I've also recently mined out a huge load of silver on one of our mining-dedicated floors. I might make some silver warhammers out of it to put in weapon traps, since I'm not focusing on military so much right now.