Please bring your pet into the appropriate areas and NOT into any common areas, when they need to go to the bathroom.3.Tenants with dog(s) shall not allow any disturbances to neighboring tenants form barking or excessive noise.

I, like you also work the daily grind and balance my time with family  etc.  

The rest is noise and you only dig it out if things go really bad.

Guaranteed income, responsibility, tidiness and most definitely never a noise complaint against them!

You should be worrying about things like YoY return, not whether tenant in 4C is upset at the tenant in 4D about the noise.

Should we plan to add soundproofing drywall to dampen the machine noise?

Noise?

I would figure out how to manage the temperature and then install the flooring that's best suited for the space, noise levels, etc.

The construction will be a negative just due to the noise and the mess.

The extra costs might be a lot or little depending on local environmental factors as well as how well the driveway is built.The upsides, as you aluded to, are more privacy and less noise.