But your main killers; road access, water access, fire hydrants, flood plain, storm sewers, Storm ponds, road surface requirements, etc. 

And here in Chicago I always check my favorite local homicide tracker whose name violates usage restrictions.Is there other favorite metrics out there that I am missing? 

I work with a lot of MTR investors and what I am seeing frequently with multifamily acquisitions, particularly with new investors, is that they often test the property just like you're mentioning, as a way to dip their toes in the water and see what works in their area and for their personal style.

In HI there are leasehold properties, cesspools, water catchment, and Lava Zones (on the Big Island). 

And as investors we should know this, but always anticipate higher costs and longer waits.EXAMPLE Breakdown of Costs:Plan Purchase: $1,500Permitting Fees: $2,500-7,500Site Preparation (grading, utilities, foundation): $20,000–$30,000ADUs require separate utility connections for water, electricity, and sewer but you can tap into existing utilities at the primary houseIn Raleigh you CANNOT split lots fee simple, so setting up completely separate utilities would not allow you to section off the ADU as of nowYour ADU must be on a permanent foundation (no wheels, no ability to move the structure)Construction (labor and materials): $100,000–$150,000Low-grade: $150–$180/sq ft averageMid-grade: $180–$220/sq ft averageHigh-end: $220–$250/sq ft averageLandscaping/Finishing Touches: $5,000Total Estimated Cost: $125,000–$200,000You could easily spend $200k+ with super end high finishes, custom designs, complicated sitework, adding a second story or more sqft, etc.

Hi all, my LTR (Boston, built in the 1930's) has some cracks in the basement walls that I didn't think were too serious (owned for 10y, some water and flaking but mostly dry).

They bought it and held it, come hell or high water.

I recently toured a property in Phoenix where solar power and water-saving features cut operational costs by nearly 20%.6.

Think of all the horror stories about tenants maxing out the heat with their windows open during the winter, deliberately running water bills up, etc. 

The snake behind the water heater during rehab.