Still, whether a permit is involved or not, approved boundaries are often required for developments like subdivisions. Playing devil’s advocate here—wouldn’t it be a property owner’s right as a taxpayer to request and receive a JD within a reasonable time frame?
Yes, absolutely, it's the Corps' practice to always honor JD requests unless impractical to do so.
You might want to take a look at
RGL 16-01 and
RGL 16-01 Q&As, which explain the differences between AJDs, PJDs, and "No JD Whatsoever" situations. Per the RGL, regulators should be having conversations with applicants to make sure they're fully aware of their JD options to help ensure the most appropriate JD type (if any) is requested. Before RGL 16-01, our office was doing lots of PJDs, basically routinely, but that all stopped after the RGL. RGL 16-01 basically told regulators to really think about whether an AJD or PJD is necessary and even steer the applicant toward not even doing one ("No JD Whatsoever") if possible.
After RGL 16-01 everyone started doing more "delineation-only verifications," where a staff member reviews the delineation and provides their concurrence, usually via email. Delineation-only verifications fit under the "No JD Whatsoever" category and, as a practical matter, can/should be used instead of AJDs/PJDs in most situations.
Regarding PJDs, I really don't even understand the point of them. I'd say delineation-only verifications should be substituted for PJDs 100% of the time.
I think AJDs are primarily used nowadays when official documentation of jurisdiction has been requested by another agency—like the situation you described where it sounds like the county wanted to see one. Sometimes people just want an official determination provided on agency letterhead, even though it's not strictly necessary. We often still provide AJDs to document excluded non-RPWs, but I generally try to steer these requestors toward a simple email concurrence instead.