I'd recommend looking at the area Realtor Association market statistics to get an idea of appreciation to date and other data. 

I do not think any are more statistically significant than the other when compared to home price/taxes/insurance in regard to cash flow.

I am not speaking from a place of reading about statistics, I am speaking from over 2 decades of dealing  with hundreds of tenants in what some may call "The Hood"

Hello,Does anyone have any suggestions for the best websites to obtain city job growth and employment statistics?

I've heard of people calling the police department and asking for statistics about the area before moving there.  

@Dalmar Segrest-Brooks statistically speaking most new businesses will fail within the first year or two.

History and social opinion of neighborhoods, often a poor property may not pop up on criminal statistics, poor school ratings or districts, or other data.

The statistics that I've heard on what percentage of non-performing mortgages actual get back to re-performing and stay that way vs. get foreclosed on would also seem to warrant caution for the second type.

Where do I start to finding some statistics on these construction costs?

Ton of good info and statistics in there for you to assess risk down there.