The tool that I am looking for would allow you to select a city, and would then be able to identify the multifamily projects in a close radius (for example: a 3 mile radius).  You would then be able to calculate the price per door of the competing projects to determine if the project that you are looking to invest in is competitive.  This tool would also let you know if your project is overpriced or underpriced for the area.

Does such a tool exist?

Most of the paid real estate research companies (costar etc) usually show price per door.  I suppose you could do a search Multifamily in a geographical area and he list you get back would show it.

yes there is a software service https://www.reonomy.com/

Thanks so much for the suggestions!