Around here, many homes use a Sentricon type of bait station located about every 10 feet around the perimeter, that require monthly monitoring (for a nice fee, of course).

The only reason I'm buying it is because the entitlements were obtained for 180 units and the developer built all of the infrastructure (roads, sidewalks, underground utilities, everything) and then got as far as constructing 28 units before the market tanked in 2008 and he lost it in foreclosure. 

They also provide a massive amount of infrastructure setup and lists as well as hand holding.

Go to a broker and you're buying a service - and you'll pay 1pt for that privilege.If you want to buy just the commodity itself (the loan), go with whichever direct lender has the most efficient infrastructure.  

Im aware its in sections and separated funded but Seattle will need help with infrastructure in the coming decade.

What are the best sites to monitor housing data like this and others?

They need to be monitored and controlled as much as any tenant.  

Private operation and not so much infrastructure.  

Also beware that some realtors are in the habit of just looking at an automated CMA (comparative market analysis) that spits out a number - these too can be way off, especially now that the market is heating up in many areas.Bottom line, learn your market, and learn how to evaluate comps yourself, then you have no one else to blame if you under or over price a property.One final note - you don't actually have to buy properties in your market to evaluate and monitor their list price, days on market, and sale price - pick several representative properties in your area to monitor and evaluate as test cases so you can learn by doing, but without risking any money or wasting anyone's time. 

But ultimately, I'd like a lot of this information to be tracked and easily reportable so that I can monitor my progress and refine it over time.