One weekend years ago, the announcer, GM, and maintenance guys for Irwindale Raceway (dragstrip) went out to do some cleaning up, painting, etc. The strip was closed, no racing. When they turned on the lights, they got five noise complaints.
My small shop opens to an alley with a residential area just past the parking lot. I worried about whatever noise I was making until a tow truck came by to deliver a car to the local mechanic shop two doors down. Those idling diesels and roll-off ramps make more noise than I could ever hope to. Of course I have also made sure that the neighbors know I (my shop) can be used as a resource when they are doing small house projects. I've glued up many old chairs, repaired a table or two, built a few cat scratch posts. All to keep the neighborhood happy.
HOA? Never never never. It all well and good, right up until you want to park your own car on the driveway.
When looking to buy a house years ago, the realtors were stunned that I did not want to get out of the car at a particular house. No, I told them, the house in question looked OK. But the house across the street had two cars in his yard, one on blocks. Since I already know what he's up to, I would not have the "right" to ask him to stop once I moved in.
Seems to me that even in my semi-commercial shop machine tools are only occasionally on. It bugs me a little that they sit there doing nothing most of the time. It's a one-guy shop, what do you expect? Of course when I need something done quick, it sure is nice to have that machine waiting for me.