Missouri says exactly what its parcel maps cannot do
The state's cadastral-map rule requires this substance on parcel maps: the map is informational, is not a property boundary survey, and must not be used for conveyance or establishing property boundaries. The requirement appears in 2 CSR 90-65.080.
Use the assessor layer for parcel identity, tax information, adjoining tracts, and a rough visual index. Then retrieve the current deed and recorded plat from the county recorder of deeds. RSMo 59.005 recognizes lot and plat references, metes and bounds, and section-township-range calls as forms of legal description in the recording system.
Search the state repository before assuming no survey exists
The Missouri Land Survey Program maintains the Land Survey Index and a repository of approximately two million digitized survey documents gathered from county recorders and surveyors. It also preserves and restores PLSS corner information used in boundary retracement.
That repository is a material advantage for Missouri research. Search by county, location, surveyor, and available land-description references, then give the results to the surveyor. A prior document may reduce uncertainty, but it does not prove that every monument is intact or that no later conflict exists.
Organize the evidence by description system
- Subdivision lot: deed, subdivision plat, amendments, easements, and lot monuments.
- Section land: section, township, range, quarter calls, survey-index results, and corner documents.
- Metes-and-bounds tract: current and prior deeds, adjoining descriptions, roads, streams, and monuments.
- Urban improvement: prior survey, site plan, visible occupation, and the exact line near the proposed work.
Ask for a result, not just “property lines”
For a fence, say whether you need the corners, one full line marked, or a signed boundary plat. For acreage, disclose access, woods, old fences, and streams. For a disagreement, request documentation of the disputed feature and keep questions about ownership or adverse possession for an attorney.
Verify and hire
Missouri Revised Statutes section 327.272 includes determining and retracing boundaries, monumenting corners, subdividing land, and locating easements within professional land surveying. Verify the individual through the Missouri board's online search.
Use the Missouri land surveyor directory to find firms. This guide does not itself locate a boundary or offer legal advice.