Build the design base around what matters.
A topographic survey records selected terrain and visible features for a stated project purpose. Scope determines usefulness more than drawing density.

Survey limits
Parcel boundary is not always the right capture boundary; tie-ins, access and neighbouring levels may matter.
Levels & terrain
Spot heights, breaklines, contours and surface model structured for the intended design use.
Visible site detail
Buildings, edges, roads, walls, trees and other agreed features coded consistently.
Visible utilities
Surface evidence can be mapped, but underground location normally requires records and specialist detection.
Coordinate & datum notes
Outputs identify the coordinate reference, vertical basis, control and relevant limitations.
CAD, GIS or model
Layering, units, file version and handover format agreed with downstream users.