Floor replacement from underneath - possible?

[newbee]

Greetings,

Looking to purchase a used 2017 home that requires the entire one side of the home floor decking replaced due to a leak and rotting floors.

Is it possible to replace the entire floor from underneath - even under the walls, cabinets, showers, etc?
I do not understand how this can be done when the wood floor is sandwiched between the floor joist and walls, cabinets, showers, etc

The owner says it can be done, but I just do not understand how.

Thank you.

[jiwolog]

Yes, it is technically possible to replace the entire floor from underneath the home, including under the walls, cabinets, and showers, but it is a complex and costly project. If your home has a crawl space or an accessible foundation (such as a raised foundation), this will be crucial. If the home is built on a slab, this method won't be feasible because the flooring is integral to the structure.

[cohnelburn93]

Replacing the entire floor from underneath is extremely difficult, if not impossible, because the floor decking is typically secured under walls, cabinets, and fixtures, so a proper repair usually involves removing and reinstalling those structures.