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Montfort-l'Amaury cadastre

Yvelines (78)

Parcels
1,533
Cadastral sections
7
Recorded area (contenance)
541.7 ha
Commune code (INSEE)
78420

Sections

Planning

Planning document
Local zoning plan (PLU) (78420_PLU_20201215)

Find the applicable document on the official GPU map

Document identified in the data, without assurance that it covers the whole commune or every parcel. Several documents may apply. Check coverage and the current version with the town hall or GPU. For guidance only, from the Géoportail de l'Urbanisme extraction of 15 August 2026; the linked document may have been replaced since. Only the planning document's regulations and annexes are binding. A missing item means “not recorded”, not “no constraint”.

Planning zones (share of parcel area):

This PLU is the commune’s own document; it must be compatible with the territorial coherence scheme (SCoT) covering the area or, failing that, with the higher-level documents. Guide: who decides what in planning

Zoning plan statistics: prescriptions, information areas and easements

Local plan prescriptions

For guidance only, from the Géoportail de l'Urbanisme extraction of 15 August 2026; the linked document may have been replaced since. Only the planning document's regulations and annexes are binding. A missing item means “not recorded”, not “no constraint”.

Parcels of the commune concerned, according to the Géoportail de l'Urbanisme:

Remarkable coastal area
789 parcels
Protected built or landscape heritage
586 parcels
Classified woodland (EBC)
108 parcels
Building restricted (environment, risks, public interest)
29 parcels
Water body excluded from shore protection
25 parcels
Ecological corridor (green and blue network)
20 parcels
Reserved site
7 parcels
Development guidelines (OAP)
6 parcels
Road, path or public transport to keep or create
1 parcel

Local plan information

For guidance only, from the Géoportail de l'Urbanisme extraction of 15 August 2026; the linked document may have been replaced since. Only the planning document's regulations and annexes are binding. A missing item means “not recorded”, not “no constraint”.

Cover more than 90% of the parcels: Development tax sector.

Parcels of the commune concerned, according to the Géoportail de l'Urbanisme:

Urban pre-emption right
1,291 parcels
Other information
570 parcels
Lead exposure risk area
10 parcels
Soil information sector (pollution)
1 parcel

Public-utility easements

For guidance only, from the Géoportail de l'Urbanisme extraction of 15 August 2026; the linked document may have been replaced since. Only the planning document's regulations and annexes are binding. A missing item means “not recorded”, not “no constraint”.

Cover more than 90% of the parcels: Underground gas or fuel storage.

Parcels of the commune concerned, according to the Géoportail de l'Urbanisme:

Remarkable heritage site
1,182 parcels
Listed monument and its surroundings
278 parcels
Power lines
54 parcels
Protection forest
41 parcels

Addresses

1,127 addresses on 89 streets, from the Base Adresse Nationale (national address register). Each number links to its parcel when it is known.

See the 1,127 addresses

Risks

This information is for guidance only and has no regulatory force: it does not replace the risk statement (état des risques, ERRIAL) to be attached to a sale or a rental, which anyone can produce free of charge on Géorisques.

Seismic zone
Zone 1 (very low)
Radon potential
Category 1 (low)
Clay shrink-swell
62% of the parcels' area with high exposure, 21% medium
Risk prevention plan
Not recorded in the Géoportail de l'Urbanisme

Property prices

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The cadastre is a tax record: it does not prove ownership. Why?

The cadastre is a tax record: it does not prove ownership and its boundaries have no legal force (only a surveyor's boundary marking does). Its plan is approximate: especially where it is old, it can be offset by a few metres from the buildings and the aerial imagery. The owner's name is not shown. Boundary marking (Service Public, in French)