A cadastral line helps locate a parcel. Before placing a fence or disputing a boundary, distinguish the map drawing from boundaries established on the ground.
Prepared by Carteparcelle · OPL Consulting Oy · Sources checked on
What the cadastral plan shows
A cadastral reference identifies a parcel within a commune, prefix and section. Carteparcelle keeps it visible even when an address becomes the page title. An address helps you search; it does not replace the parcel reference.
The cadastre serves a tax purpose. The French tax administration explains that cadastral documents do not authenticate a title deed or guarantee the extent of a property. A parcel page alone therefore cannot establish who owns the land.
When a boundary needs to be established
Bornage establishes boundaries between neighbouring private properties. Service Public distinguishes it from both the cadastre and fencing: neither a drawing nor a fence guarantees the actual boundary. Boundaries with public land follow different procedures.
Fictional example: a map line runs beside a hedge. The mismatch alone does not establish encroachment. Before placing a fence there, find any existing documents and seek advice from a géomètre-expert, a licensed land surveyor.
Interpreting an overlay carefully
The parcel-page plan uses cadastral geometry; the aerial photograph is a different source. Zooming in enlarges the display without adding precision to the underlying documents. A visible mismatch is something to investigate, not a boundary correction to apply yourself.
Nearby-parcel links help you navigate. Inclusion in that list does not certify that parcels share a boundary. Check which parcel is selected before forwarding a link.
Preparing a useful enquiry
Record the commune, cadastral reference, source and displayed date. Keep the page link and describe the issue precisely: fence, access, area or identification. Ask the cadastral service about cadastral documents; consult a géomètre-expert about an uncertain private boundary.
If you already have a boundary-survey plan, do not replace it with an on-screen measurement. Show both documents to the professional so they can explain the difference.
These guides provide general information. Before making a decision about a property, confirm the relevant details with the responsible authority or professional.
Official sources
The links below lead to official sources in French.