Portable buildings have come a long way in the past 30 years, they are much more sturdy / long-lasting now. However you should consider the climate/weather of the region you are planning on placing one on and check with the portable building manufacturer for what the building is made to withstand and warranty information.
Yes you can live in a portable building if it has sufficient livable standards of a bathroom and kitchen.
no
Portable buildings are not always trailer buildings. They can also be moved from place to place by trucks.
Portable shed kits can be found at most home improvement stores. Home Depot, Lowe's and Menard's are all good sources for building a portable shed.
It would be possible to set up a store in a portable building. You would still need to have an operating licence, and may have to get specific permissions to park your portable store in most places.
230v
A portable storage building can be purchased at some outdoor vehicle dealerships and some truck dealerships. They can also be purchased online on websites like Ebay.
If you can prove that you built the building for yourself, yes. If you built the building for your parents, then the building still belongs to them.
You can find portable metal building for sale from the companies Kelly Klosure, US Metal Building, CB Warehouse Buildings, US Mobile Offices and LTH Steel Structures.
A portable greenhouse can help grow some food. However, it cannot grow all of the food a person needs to live. Window boxes and grow lamps without a formal green house building can also be used.
Portable garages are made of various building materials much like a portable toilet. The covers are mostly polyethylene which normally last three to twenty five years.
There are many sources for portable generators, but if you aren't looking for a specific model and are simply interested in cheap and functional, I would suggest that you take a look at Craig's List or even eBay. If you live in or near a large city, check your local Yellow Pages for salvage yards or building supply outlets.
It was designed to be an office building, and, to my knowledge, it has always been an office building. So, no, you cannot live in the Flatiron Building.
One can find more information about portable buildings online by going to the Smogon University website. They have research and statistics on portable building throughout the United States and new innovations for the future.