soundproofing floors for a multi family

[Joseph Chacko vellukunnel]

Hi,

I'm remodeling a multi family home that I recently purchased. I'm about to install drywall and floors and wanted to check if anyone had any good ideas on soundproofing.

The home is a 3 family across 3 floors, with wood frames. It currently has the original hardwood floors on all levels. I'll be owner occupying the bottom unit.

I'd like to know how important soundproofing is for renters. How much should I spend per sqft? My main concern is impact noice and airborne noise across floors.

my current plan is to lay vinyl planks, and a good quality underlayerment over the existing wooden flooring in all the upper floors. I'll also be adding in insulation between the floor joists. additionally, for my owner occupied unit, I was thinking of adding an extra layer of drywall with green glue.

would love to hear from any of the investors, sound experts out there. Is this a low cost viable approach?

joe