Craig Roberts said:
Is it possible to do a drive-by on a single-family residence with the intended use being to assisting the client in determining the market value of the subject?
"assisting the client in determining the market value of the subject" does not identify the intended use to a degree that would comply with USPAP, let alone allow one to develop a proper answer to your question.
Why is the client engaging you? What are the client's reasons for ordering an appraisal? Why does the client need to know the market value? That's intended use.
If intended use is to contest a highway department taking then an exterior-only inspection is likely inadequate. If the intended use is to determine whether to spend money on a broader-scope appraisal, then exterior-only may be acceptable.
Your assignment results must be credible within the context of the intended use. Identify the problem that needs to be solved by going through the assignment elements, the six steps to happiness:
Assignment elements:
1) Client and intended users
2) Indended use
3) Type and definition of value
4) Effective date
5) Relevant property characteristics
6) Assignment conditions
Once you have analyzed the steps above, you can make your scope of work decision. What you need to do and what you don't need to do. Your question most directly bears on #5, Relevant property conditions. What degree of familiarity with the physical characteristics of the property is needed to solve your client's problem?
So, Craig, what is the intended use?