Kind of suprised more haven't mentioned security.
I was just about to. I would put this above connectivity as having your gear stolen in the middle of the night will put a bigger a damper on productivity than not having an internet connection.
This is a huge problem in Vancouver. Small start ups were getting broken into all over Yaletown when I was there. Even middle of the day smash and grabs weren't uncommon while people stepped out for coffee or lunch. They would also sneak in through back stairwell doors to offices or in the front door while reception was on a break and grab whatever they could, usually a laptop or something equally as easy to walk away with.
Warehouse offices with other businesses in them that stayed open past regular working hours were easy pickings. In our building there was a Pilates studio on the ground floor that was open til 9pm, with 4 more floors of offices above that. In my girlfriend's building just down the street there were cafes and restaurants open late that had their washrooms in the lobby. I was working late on night and a fellow walked right in to our office, looked around and headed for the kitchen. I caught movement out of the corner of my eye and confronted him and he bolted. The boss and I chased him down the stairs.
Method of choice for late night break and enters into these kind of offices? Not through the main door or floor to ceiling windows in the halls like you might think... nope. Straight through the walls in the hallways. Drywall is easy as fuck to go through. Just smash though it and you are inside the office. The owners of our company put in 12 foot high chainlink fencing all along perimeter walls that had hallways on the other side of them. The thinking was that if they didn't come with cutting tools, this would most likely stop them if they had kicked their way through the wall.
We had the security system call our mobiles along with the security company if it ever went off at night, as 4 of us all lived within 2 blocks of the office and we could most likely get there before the police would ever show up.
So, security is my first choice.
Second, close to home. Commuting is utter shit. My apt was within 200 meters of our office. My girlfriend worked in the same block at a different company. All my jobs in Vancouver were walking distance from home.