I recently spoke with the town's zoning inspector, who confirmed that the building is in a GB (General Business) zone.

Do the closets have nice organization storage?

@Chris SeveneyWe are in self storage.  

I actually think gb does a good job with services I dont mind paying them my taxes hehe

I now have three tenants and I lease part of one of the properties back to my business as a storage yard (so 4 streams of income).

@Jordan RegierA garage is definitely a benefit for storage, recreation area, etc.  

yeah you are likely looking at art studio/content creation type spaces or maybe some startup that needs a bit of storage or warehousing while they get going. 

I have been looking into carwash, storage units, multifamily rentals, and other ideas.

The property features two 1,400 sq ft suites on the main level (one currently leased) and over 3,000 sq ft on the upper level, with 750 sq ft already occupied, 3 small office spaces (+/- 250 sq ft each), and a basement tenant with 1,400 sq ft of storage space.The building generates $6,000 in monthly gross income from its five tenants, but with full occupancy and market-rate rents, it has the potential to bring in $10,000+ per month.Given its historical significance, stunning architectural details, and location, I’m curious about your opinion: Would this property be more marketable for sale with or without the current tenants?

IMHO Have campaigns for phone text email follow upHave a phone system Have a text system Have an email system Have chat both external and internal Have webforms Have RVMHave conference roomsHave file storage Have a CRM attached and seamlessly churning data  I use calltext.com however I also own it.