Hey Ednan,I am a structural engineer down in LA area.Every project is unique and sometimes there  are special circumstances so take this with a grain of salt.

Additionally, you need a local licensed structural/civil engineer for the structural scoops.

That cost is highly dependent on whether you're pulling permits and doing plans with full engineering, or just common sense building without permits, of course.

:)Look for those that: are NOT on the top of the search engine lists when you do a search; that you do NOT see/hear on tv/radio ads; etc! 

Does the firm have engineering licenses with the State Authorities, proper licenses overall, and proper insurance?

No real estate agent is going to specialize in that. it's much easier to work with zoning attorneys or a land use planner or a civil engineering firm. you'll have to spend the money. it's rare for agents to offer that.

The one thing that isn't talked about very much is how hard it is to get started....but once you get started, the engine starts feeding itself.  

So far, insurance companies have weathered some pretty serious disasters in hurricane areas.Most wood-framed houses in California fair pretty well during most quakes because they're engineered to roll with the shakes, instead of crumble like a brittle brick house.

Land $10,000, due diligence / soft costs $3000 (oversees architect and engineering), $1900 to remove from flood plain / get survey, the house is 700 sq ft which the floorplan is below.

Engineering firms perform cost segregation studies.With the cost of Cost segregation studies coming down in recent years, it has made more sense to also apply them to lower cost properties.You should get a cost segregation study done if you anticipate that it will benefit you now or in the near future