Modulars are built with 2x4's (Cavco offers the option to upgrade to 2x6's and IMO is the best modular home maker). just like a house and can be placed on a pad.

A little padding of $15k per property is about half of that equity. 

That had the padding attached!

A preprinted pad of lien waivers.

@Jarrod Ochsenbein is it true that you can’t list on Airbnb at the same time as listing on pad split?

No carpet unless the ground is uneven like a garage conversion or addition with poor foundation, if carpet get a thick pad.

In a mobile home park, most of the value is in the underground infrastructure, roads, landscaping, amenities, pools, fencing, pads, utility pedestals, etc, while only a small portion of the value comes from a building, like a clubhouse or laundry facility.

-Site work: typically $10K is a good number to start with, which includes preparing the building pad, connecting utilities, plus a small amount of landscape and concrete work.Other costs (not typically required): Additional structural engineering, Civil engineering, Soils engineeringAlso, the cost would be around $75K for a standard garage conversion project of about 400 sqft....$8-10K for plans/design/engineering, $3-5K permits/fees, rest construction costs.

You can add a pad to it.   

Finding one that has built in padding and a thick wear layer (10 or 12 mm) makes for easier install, it holds up forever, and is just all around better.