Typically cost for house only, does not include land development costs, landscaping, driveway etc. it also does not include costs such as getting site plan approvals, architect or engineering fees

What image am I putting forth to my existing/prospective tenants. 

I have developed a plan with some counseling from my CPA.

The analysis tools provided in the course such as sale leaseback, DCF, developer feasibility etc is something I use every week.

By driving for dollars I have collected a list of properties I am going to mail, as well as developed the letters I will be sending.

Thanks for the responses.The reason why I'm asking is I was thinking about developing an App for this as well. 

It is.So your small structure might not be economically reasonable.If you do decide to build an actual second dwelling, I recommend reaching out to @Josh Braun of Torque Development.

Once they have developed & processed the Loan Qualification Package, they send the package to the Texas Veterans Land Board, asking for approval & Funding of the Loan.

Just prospecting?

It's not like being in a patio home development where every house is the same so it truly comes down to the opinion of the appraiser plus the opinion of the buyer.