May have to just tear out the 3/4 plank subfloor and sister joists to get a flat surface and then resheet with 3/4 ply.   

How far below the surface of the ground did your trench end up being?

On the surface, those numbers would fail every rule on BP.

As an agent working mostly Sellers, nuances of a slowdown in the insanity began to surface in late 2005. 

if you are really looking for durability and ease, look into an epoxy floor paint, it rolls on and will give you a nice surface.

@Steve Babiak I agree, that surface mounted looks like crap!

Isn't mold usually on the surface?

There had been many times prior when subway cars would sit in one spot for hours between stops on multiple occasions, due to 'police investigations' etc, often full of people including myself opening the mini windows trying to get some air in, as our breathing condensed on the glass and metallic surfaces all around.I do hope somehow the traffic control keeps up with Downtown LA's ongoing development into a megacity the likes of NYC.My hope was to move cross country for more space and higher quality of living despite both LA & NYC being such densely population areas.

Then have someone find good tenants, and make sure it was managed on an ongoing basis.On the surface, that "sounds" like a pretty easy thing to do. 

The synopsis addresses "black ice"/hidden ice, wet surfaces, steps, changes in elevation, uneven surfaces, clutter, objects on ground, lighting, code issues, etc.