Zillow is clueless with duplex.The upper cap is SFH but how lower should a duplex be when comparing with a comparable specs SFH?

What are the legal steps to start building a spec home?

Where do you get construction financing when building spec SFHs and townhomes?

What are the rates for construction loans on spec single-family homes and townhomes?

@Arturo Borges you've made a dozen posts all asking about different aspects of building a spec house. 

Others will chime in and say "you aren't advertising the house, you are advertising your interest in a contract", however once you show photos of, specs on, and address of a house, you are advertising the house for sale. people seem to do it all the time, but I would be careful, as it seems they are cracking down.You have it under contract... your inspection period should be spelled out.

You can find the deals with the specs you have put forth, especially with SFH, that tend move more slowly than lower price points.   

We are not there now.....but if you look the massive amount of building, good stock market performance, low unemployment  we are doing well, but change 1 or 2 of those factors in a negative way and you will see changes......almost always goes in cycles.What is great now is kids hate buying homes and an aging population is moving to rental....at the same time, inventory on the residential market should get interesting as well with these to factors and rising interest rates.....all spec....not an expert.

They are small and run on batteries.

You can if low on funds even make a deal with the guy , youll buy the parts, he does the labor to your specs(you watch him do work closely)....