- Parcels
- 8,038
- Cadastral sections
- 42
- Recorded area (contenance)
- 2,413.9 ha
- Commune code (INSEE)
- 78646
Sections
- Section AB76 parcels
- Section AC256 parcels
- Section AD462 parcels
- Section AE426 parcels
- Section AH214 parcels
- Section AI273 parcels
- Section AK245 parcels
- Section AL175 parcels
- Section AM491 parcels
- Section AN5 parcels
- Section AO134 parcels
- Section AP111 parcels
- Section AR117 parcels
- Section AS68 parcels
- Section AT10 parcels
- Section AV310 parcels
- Section AW161 parcels
- Section AX440 parcels
- Section AY232 parcels
- Section AZ246 parcels
- Section BC135 parcels
- Section BD155 parcels
- Section BE421 parcels
- Section BH14 parcels
- Section BI358 parcels
- Section BK270 parcels
- Section BL394 parcels
- Section BM62 parcels
- Section BN124 parcels
- Section BO58 parcels
- Section BP197 parcels
- Section BR173 parcels
- Section BS156 parcels
- Section BT175 parcels
- Section BV197 parcels
- Section BW249 parcels
- Section BX133 parcels
- Section BY156 parcels
- Section CA24 parcels
- Section CB66 parcels
- Section CC33 parcels
- Section CD36 parcels
Planning
- Planning document
- Local zoning plan (PLU) (78646_PLU_20251201)
PLU zones (share of parcel area):
- Natural and forest zone (N) (52%)
- Urban zone (U) (48%)
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:
- Social housing quota sector
- 5,862 parcels
- Parking
- 4,049 parcels
- Protected built or landscape heritage
- 3,245 parcels
- Other prescription
- 2,442 parcels
- Parking requirements of the mobility plan
- 1,768 parcels
- Building placement rules
- 930 parcels
- Classified woodland (EBC)
- 263 parcels
- Rebuilding or demolition rules
- 154 parcels
- Reserved site
- 133 parcels
- Building footprint
- 25 parcels
- Open space and planting
- 22 parcels
- Development guidelines (OAP)
- 16 parcels
- Building restricted (environment, risks, public interest)
- 9 parcels
- Protected garden or open land in a built-up area
- 2 parcels
- Retail diversity to protect or develop
- 1 parcel
- Height
- 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:
- Transport noise sector
- 5,679 parcels
- Safeguarded sector (conservation plan)
- 1,537 parcels
- Other information
- 32 parcels
- Development tax sector
- 17 parcels
- Lead exposure risk area
- 16 parcels
- Archaeological site
- 14 parcels
- Areas and habitats to preserve (wetlands…)
- 14 parcels
- National interest operation (OIN)
- 11 parcels
- Urban pre-emption right
- 7 parcels
- Sanitation and waste
- 2 parcels
- Commercial pre-emption right
- 2 parcels
- Public forest regime
- 2 parcels
- UNESCO World Heritage
- 2 parcels
- Works subject to declaration or permit (demolition, fences, façades)
- 2 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
- 5,756 parcels
- Remarkable heritage site
- 2,419 parcels
- Listed or classified site
- 1,681 parcels
- Railways
- 833 parcels
- Power lines
- 282 parcels
- Protection forest
- 12 parcels
- Saclay plateau protection
- 11 parcels
- Classified installation or polluted site
- 2 parcels
Addresses
8,909 addresses on 459 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
- 48% of the parcels' area with high exposure, 14% medium
- Risk prevention plan
- Natural or mining risk plan (PM1): 3 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)