- Parcels
- 3,614
- Cadastral sections
- 23
- Recorded area (contenance)
- 416.6 ha
- Commune code (INSEE)
- 91122
Sections
- Section AA2 parcels
- Section AB43 parcels
- Section AC12 parcels
- Section AD48 parcels
- Section AE90 parcels
- Section AH63 parcels
- Section AI187 parcels
- Section AK155 parcels
- Section AL39 parcels
- Section AM237 parcels
- Section AN200 parcels
- Section AO428 parcels
- Section AP11 parcels
- Section AR182 parcels
- Section AS229 parcels
- Section AT160 parcels
- Section AV250 parcels
- Section AW278 parcels
- Section AX318 parcels
- Section AY152 parcels
- Section AZ176 parcels
- Section BA307 parcels
- Section BB47 parcels
Planning
- Planning document
- Local zoning plan (PLU) (91122_20250303)
PLU zones (share of parcel area):
- Urban zone (U) (72%)
- Natural and forest zone (N) (28%)
- Closed development zone (AUs) (0%)
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:
- Parking requirements of the mobility plan
- 1,412 parcels
- Ecological corridor (green and blue network)
- 251 parcels
- Classified woodland (EBC)
- 185 parcels
- Development guidelines (OAP)
- 167 parcels
- Building restricted (environment, risks, public interest)
- 87 parcels
- Reserved site
- 78 parcels
- Protected built or landscape heritage
- 65 parcels
- Retail diversity to protect or develop
- 49 parcels
- Building placement rules
- 18 parcels
- Remarkable coastal area
- 12 parcels
- Building placement rules
- 3 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”.
Cover more than 90% of the parcels: Development tax sector and Urban pre-emption right.
Parcels of the commune concerned, according to the Géoportail de l'Urbanisme:
- Transport noise sector
- 650 parcels
- Other information
- 273 parcels
- Archaeological site
- 197 parcels
- National interest operation (OIN)
- 21 parcels
- Sensitive natural area pre-emption zone
- 9 parcels
- Forest planting rules
- 7 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 or classified site
- 2,944 parcels
- Saclay plateau protection
- 2 parcels
Addresses
3,221 addresses on 168 streets, from the Base Adresse Nationale (national address register). Each number links to its parcel when it is known.
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
- 71% of the parcels' area with high exposure, 29% medium
- Risk prevention plan
- Natural or mining risk plan (PM1): 209 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)