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Hermeray cadastre

Yvelines (78)

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Parcels
3,166
Cadastral sections
13
Recorded area (contenance)
1,768.5 ha
Commune code (INSEE)
78307

Sections

Planning

Planning document
Local zoning plan (PLU) (78307_PLU_20250619)

PLU zones (share of parcel area):

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:

Classified woodland (EBC)
1,206 parcels
Building placement rules
1,102 parcels
Remarkable coastal area
743 parcels
Protected built or landscape heritage
324 parcels
Building restricted (environment, risks, public interest)
102 parcels
Development guidelines (OAP)
101 parcels
Reserved site
19 parcels
Buildings in a farm or natural zone
8 parcels
Other prescription
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: Lead exposure risk area.

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

Other information
2,362 parcels
Urban pre-emption right
1,021 parcels
Forest planting rules
718 parcels
Sanitation and waste
82 parcels
Sensitive natural area pre-emption zone
6 parcels

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”.

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

Listed monument and its surroundings
381 parcels
Protection forest
291 parcels
Listed or classified site
85 parcels

Addresses

522 addresses on 45 streets, from the Base Adresse Nationale (national address register). Each number links to its parcel when it is known.

See the 522 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
41% of the parcels' area with high exposure, 24% medium
Risk prevention plan
Natural or mining risk plan (PM1): 107 parcels within a perimeter recorded in the Géoportail de l'Urbanisme

Produce the risk statement (ERRIAL) on GéorisquesRisks near an address (Géorisques)

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)