I hate mansions. I make my row streets have 4 tiles between them to have two rows of 1x2 houses. Unfortunately, mansions just ignore the zoning and take a 4x3 or 4x4 tiles chunk of my street in random places. They look totally out of place.
However, my solution of having a 20% R$$$ tax also stops the nicer apartments from building, which I do want.
So, does anyone know of any no-mansions mods?
Some time ago, I made a mod that restricts all small Maxis residentials to low density zoning only (see attachment). Since you have to use medium or high density zones for rowhouses, this is just what you need. Any custom lots would have to be edited accordingly, though.