Is this tax parcel actually a buildable lot?

I’m evaluating a parcel for a future custom home and want to verify its legal buildability before paying for architectural plans or a full survey.

The county assessor shows it as a separate tax parcel with a recorded street address, but I’m not sure that proves it’s a conforming building lot. The parcel is in the [zoning district] district, measures approximately [dimensions], and contains about [area]. It has roughly [frontage] feet of frontage on [public road/private road]. The zoning map also appears to show [possible split zoning/access issue], and I haven’t confirmed whether the entire parcel is under one zoning designation.

The main questions I’m trying to answer are:

- Does the parcel meet the current minimum lot area and frontage requirements?
- Is the road access legally sufficient, particularly if any portion is reached through an easement or private road?
- Could it be a legal nonconforming parcel, or does the recorded parcel and address mean it can be used as a building lot?
- If it’s split-zoned, which district’s requirements apply to a proposed house?

Would the planning or zoning department typically provide a written determination of lot eligibility before I order a boundary survey and begin design work? I’d also want to check whether the parcel was created before the current zoning ordinance and whether any prior subdivision approval or variance is required.