Im analyzing a self build and having a hard time understanding the analysis overtime. 

We also put the foundation to build an ADU, but aren't sure if we should keep putting money into this house or get back to living by the beach.

Was able to build an ADU in the basement, rent it out, and gained around $150k equity in the process.

If you had to do it all over again, would you purchase and existing Storage business or buy/lease land and build a storage business and why?

Assuming a building footprint of up to 5000 sq ft, use could not support the need for a lot of parking (probably <20 spaces).Not interested in auto maintenance and other uses that require disposal (and potential runoff/dumping) of large volume of hazardous materials.Long term, I'd prefer something that contributes to the improvement of this area (e.g. a used car lot might be OK for a couple of years just to generate income, but I'd want to find something more beneficial after that).

You build in the profit on the 90 days+ on material financed.

What do you think the next step is to building more wealth?

All of the meetings that I see about ADUs are sponsored by builders who want to sell their ADUs.Are there others who want to build their own or want to share their experiences about building ADUs / converting outbuilding / navigating codes in Portland that DO NOT involve hiring one of these tiny house start-up companies?

Located in suburbs outside of Seattle, new to investing and trying to figure out the best way to grow and build wealth and learn what others are doing.

Some contractors can remodel a kitchen and put in flooring/paint, and some can build ground up.