My previous shop was in my basement with no direct outside access. The top of the stairs door entered directly into the side of the garage. Hauling tools, wood, etc. in and out of the shop was difficult, but doable, and at least it didn't involve going through the house. My big problems in that shop were saw dust and noise. The bedrooms were directly above, and although I spent considerable money insulating and sound proofing the shop ceiling, I couldn't use my shop when the kids were sleeping. Warm air rises, so even the shop had a door, and there was a second door to enter the house, sawdust was constantly a problem in the house. It found cracks or some way to get up there. I began changing my shoes and blowing myself off before leaving the shop, but even then the sawdust was getting into the living area.
When I moved, I vowed to not ever have a shop in the basement again. It couldn't be there in my next house because I bought a house with no basement, but it had a two car attached garage, so I made that into my shop. After a few years there, and still with complaints of sawdust getting into the house, I built a separate building for my wood shop. This finally solved my problem of getting saw dust in the house. It also stopped my wife from interrupting me for her very minor little honeydo's and wanting to chat. because she would have to phone me or walk out to the shop to get me (a BIG +). Now, my only problems are 1. That I didn't build my shop big enough. 2. That I didn't include a toilet in the design. I never get complaints about saw dust in the house because I still blow myself off and change my shoes before going to the house. I installed a 2 ton window style heat pump, high and through the North wall of my shop, so my shop is both heated and cooled with no open flames to worry about and I added a pleated air filter to it so it now performs as a great whole shop air filter too.
Central North Carolina