Since there doesn't seem to be any modern small multifamily available, I've thought maybe I should have it built.

You'd be hard pressed finding a rental built after 1910.

Upscale modern homes modular built.

Sellers that are older may be more wary of the coronavirus and don't want to make a move during the uncertainty.TLDR; Great Recession ---> homebuilders went out of business, economy contracted causing housing to be less affordable,  decrease in demand for housing = under-built markets and less inventory.

I know what makes a succesful theme park, I just don't know about how it works to build them.Hope you can help point me in the right direction for webinars, articles, courses, knowledgable people or anyone who has done this before.Regards DaanSmall theme parks are built all the time alll over the world. 

The problem is that with resale stick built is worth more than manufactured and if you live in a reasonably sized city the market has determined the highest and best use for lots that will meet your criteria is for someone to stick build a house and sell it at market value, and the lots are priced as such.

That is done a lot here with properties built before hydro dams made power here the cheapest in the nation.A simple cost/benefit analysis will answer a lot of questions, including this.

I am personally excited at the idea of living in the location because of the convenience of how close everything is.Duplex - $550,000 - mortgage would be $3,030 FHABuilt- 2001One side 2/2 1k sq ft, other side 3/2 1400sqft2/2 side has had tenant since it was built in 2001.

In my area i would write up the covenants and restrictions regarding what is built, then offer the lots to anyone. 

If the building was built after 1945 but before 1965 it probably has lead on the outside and not the inside so it's worth going for the limited lead cert.2.