If not, then the path of least resistance is to simply adjust your vision so it fits better into the lot, as-is. :) A zoning change can take up to 6 months, approval isn't guaranteed (despite Aldermanic support), and potentially cost a lot of money (architectural site / floor plans & dimensioned elevations, zoning attorney, holding costs, etc.) 

That means clearly calling out 4+ awesome amenities they can’t resist—like “Lakefront Retreat | GameRoom | HotTub | EV Charger” instead of “Charming Cottage with a Beautiful View.”Why It WorksGrabs attention with specifics (people love hot tubs).Tells guests exactly what they can expect, so they’ll click over your competitors.Makes your property unique—no more “cozy” or “adorable” listings lost in the crowd.Try ThisBrainstorm your top must-see amenities.Keep the wording short, clear, and hype-worthy.Swap out any fluff words like “cute,” “lovely,” or “charming.”

It becomes their home and they can paint the walls any color they want.So, sometimes, it isn't just about the interest rate. 

I will also be doing all the cosmetic things you can think of: paint, flooring, bathroom reno, kitchen reno, so I am open to carpenter or design suggestions.  

From the top of my head - mildew, moisture buildup, dust, structural cracks...

If they are dinged or scuffed you can touch them up with white appliance paint.

However I did note that houses are mostly really old, e.g. 100 years or older... any idea if this poses challenges in things like lead paint presence, outdated wiring, rusty plumbing, etc., or have many of the homes already been updated?   

or recently - "how much to paint my rental?

It might be wise to remove the listing, and relist as a brand new place now that you have a solid cleaner.Some of the comments show that the paint has issues etc.

That's' the resistance point. in markets I work for new builds inventory is still historic lows so many are just sitting on their low rate and just staying put although they would like a nicer home.