I was working in 52 Martin Place at the time, the same building as Sunrise. They had the mezzanine and we were on the 30th floor. The whole day, and the two days after were surreal.
It was the Monday before Christmas - there was still a bit of work to do, but everyone was sliding into holiday mode and the office was pretty relaxed. I finished some work and headed back up to my floor to get my wallet and head down for a coffee - coincidentally, I was thinking of going back to the Lindt cafe because I’d had a coffee there a few weeks before but it was pretty garbage so I wanted to give them another go.
People were crowded around the TV and the windows and I saw the rolling coverage, and word spread around the office pretty quickly about what was happening. People stopped working and started crowding around the windows until we were told to get back. They offered to evacuate us pretty early on (about 30 minutes in), but the police rescinded the offer when they realised one of the stairwells opened up directly to the exclusion zone in Martin Place.
After another couple of hours of tense back-and-forths, building management reactivated the disabled elevators and we went down one elevator load at a time, being ushered out of the building by police and ducking under police tape on Elizabeth Street.
My coworker and I walked to a pub a few blocks away and got a beer to settle our nerves, and I remember the sense of dread in the air as people watched the news coverage. I naively thought that the whole thing was overblown and would be over in an hour or two, and of course it took much longer than that.
We were kept home the following day while they were clearing up, and I’m pretty sure we were back in the office on the Wednesday. That was when the flower shrine started building, and I can remember the absolute reverence as we walked through Martin Place at lunchtime, juxtaposed by a frantic city the week before Christmas.
I can remember thinking about how these things usually happen on the other side of the world, but there I was watching the news coverage in the kitchenette, then looking out the window and seeing it, in real time, 100 feet away from me.