I spent years working in open-plan offices, convinced that my afternoon exhaustion was just a normal part of having a demanding job. It wasn't until I worked from a quiet home office for an extended stretch that I realized how much of that exhaustion had nothing to do with the work itself, and everything to do with the environment I was doing it in.
Open offices are built around an assumption that background noise, movement, and constant low-level social activity are neutral, or even beneficial, for collaboration. For a lot of autistic brains, none of that is neutral. Fluorescent lighting, overlapping conversations, unpredictable interruptions, and the low hum of shared space all register as input that has to be processed, filtered, and managed, continuously, all day, whether or not you're consciously aware of it happening.
That processing has a cost. Every minute spent filtering out a conversation two desks away, or adjusting to lighting that feels too bright, is a minute of cognitive capacity not spent on the actual work. By the end of a day in that kind of environment, a huge portion of the exhaustion isn't from the job. It's from managing the space the job happened to take place in, and almost nobody accounts for that cost when they design an office or evaluate someone's output.
For autistic founders and employees, this isn't a minor comfort preference. It directly affects the quality and volume of work produced. I've seen this in my own output: the same task, done in a controlled, quiet, predictable environment, takes a fraction of the time and comes out noticeably better than the version attempted in a noisy shared space, even when the hours logged were identical.
What changed things for me was treating the physical and sensory environment as a business decision, not a personal indulgence. Fixed, predictable lighting instead of overhead fluorescents. Noise-cancelling headphones as standard equipment, not an occasional accommodation. A workspace with a closed door, used deliberately during work that requires deep focus, with clear signals to anyone nearby about when I'm not to be interrupted.
If you run a business or a team and you have autistic people on it, the return on sensory accommodation is rarely discussed but genuinely significant. Letting someone control their lighting, noise level, and interruption frequency isn't a special favor. It removes a constant, invisible tax on their attention, and the resulting output difference is large enough that it should be treated as a basic operating condition, the same way you'd provide a working laptop.
If you're autistic and building your own business, you get to design this from scratch, and it's worth taking seriously. Don't assume the standard open, buzzing, bright environment that most workplaces default to is neutral for you just because it's common. Build the sensory conditions that let your attention go toward the work instead of toward managing the room, and expect the difference in output to be bigger than you think.