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Saint-Germain-en-Laye cadastre

Yvelines (78)

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Parcels
9,563
Cadastral sections
32
Recorded area (contenance)
5,099.5 ha
Commune code (INSEE)
78551

Sections

Planning

Planning document
Local zoning plan (PLU) (78551_PLU_20260506)

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:

Protected built or landscape heritage
2,404 parcels
Parking requirements of the mobility plan
2,392 parcels
Development guidelines (OAP)
1,307 parcels
Other prescription
1,260 parcels
Classified woodland (EBC)
1,085 parcels
Building restricted (environment, risks, public interest)
386 parcels
Building placement rules
192 parcels
Reserved site
129 parcels
Social housing quota sector
83 parcels
Road, path or public transport to keep or create
48 parcels
Protected for its soil or subsoil resources
47 parcels
Height
8 parcels
Buildings in a farm or natural zone
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”.

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

Urban pre-emption right
8,145 parcels
Local advertising rules
8,011 parcels
Other information
6,348 parcels
Sanitation and waste
6,035 parcels
Transport noise sector
4,102 parcels
Commercial pre-emption right
1,428 parcels
Planning decision deferral area
1,179 parcels
Archaeological site
1,101 parcels
Quarrying area
970 parcels
Land divisions subject to declaration
411 parcels
Development tax sector
140 parcels
Airport noise exposure plan
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”.

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

Listed monument and its surroundings
2,648 parcels
Remarkable heritage site
965 parcels
Railways
527 parcels
Listed or classified site
191 parcels
Classified installation or polluted site
188 parcels
Power lines
67 parcels

Addresses

6,546 addresses on 435 streets, from the Base Adresse Nationale (national address register). Each number links to its parcel when it is known.

See the 6,546 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
12% of the parcels' area with high exposure, 35% medium
Risk prevention plan
Natural or mining risk plan (PM1): 995 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)