I have the skills to work with the city officials and understand all the Tiny Home Codes.

With all the issues with the promo is making me doubt.

So, it's still NOT a good idea to try to invest by zip codes - which are too big in our opinion/experience.

As long as the ADU is under 900 sq. ft. and meets the state building code, there will be no variance or special permit needed, so no ZBA or neighborhood meetings.

I paid for the subscription for a few months and drew my own custom Google maps areas and color coded them red/yellow/green based on a "grade" I felt came from a few metrics like crime/average household income/etcI also really like realtors dot com new maps, if you search for an address and click on the map and then go to the top left and choose the Value slider it will give you a nice color coded map of which areas of a neighborhood are higher valued.

•Are there any specific neighborhoods or zip codes to target or avoid?

Permitted or not, you want 100% assurance the property is within building code standards for the year it was built, and for any upgrades/ changes - the years those upgrades were made; ie GFICs in wet areas currently, but not required in original construction back in 1950 when they didn't exist.sorry for not replying earlier, I'm rarely on this platformbest of luck on the project

The marketing/advertising firm, aka RE broker, is not the expert in building codes, zoning, structural engineering, neighborhood safety, etc.As a prudent investor, always do your own due diligence or you'll end up being (unitentionally) misguided by a RE broker's information.  

My local code enforcement officer is happy to take calls. 

I have had inspectors look at rooms on renovations that were not permitted (we weren't even doing work in the rooms) and asked that certain changes to be made to bring the room up to code (it was minimal).