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Saint-Cyr-l'École cadastre

Yvelines (78)

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Parcels
2,835
Cadastral sections
14
Recorded area (contenance)
458.2 ha
Commune code (INSEE)
78545

Sections

Planning

Planning document
Local zoning plan (PLU) (78545_PLU_20220907)

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:

Development guidelines (OAP)
1,485 parcels
Parking
878 parcels
Protected built or landscape heritage
373 parcels
Retail diversity to protect or develop
141 parcels
Building placement rules
21 parcels
Classified woodland (EBC)
14 parcels
Access and servicing conditions
13 parcels
Building restricted (environment, risks, public interest)
11 parcels
Other prescription
9 parcels
Reserved site
8 parcels
Building volume
8 parcels
Ecological corridor (green and blue network)
3 parcels
Protected garden or open land in a built-up area
1 parcel
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: Commercial pre-emption right, Development tax sector and Urban pre-emption right.

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

Joint development zone (ZAC)
304 parcels
Transport noise sector
295 parcels
Airport noise exposure plan
198 parcels
Other information
140 parcels
Archaeological site
12 parcels
Lead exposure risk area
12 parcels
Peri-urban farmland protection
7 parcels
National interest operation (OIN)
7 parcels
Local advertising rules
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: Listed monument and its surroundings.

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

Railways
365 parcels
Listed or classified site
138 parcels
Power lines
49 parcels

Addresses

2,778 addresses on 188 streets, from the Base Adresse Nationale (national address register). Each number links to its parcel when it is known.

See the 2,778 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
78% of the parcels' area with high exposure, 16% medium
Risk prevention plan
Natural or mining risk plan (PM1): 2,503 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)