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Montlhéry cadastre

Essonne (91)

Parcels
4,570
Cadastral sections
11
Recorded area (contenance)
298.5 ha
Commune code (INSEE)
91425

Sections

Planning

Planning document
Local zoning plan (PLU) (91425_PLU_20260721)

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)
634 parcels
Development guidelines (OAP)
588 parcels
Social housing quota sector
490 parcels
Building placement rules
386 parcels
Height
171 parcels
Protected built or landscape heritage
126 parcels
Other prescription
50 parcels
Retail diversity to protect or develop
39 parcels
Reserved site
30 parcels

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, Local advertising rules and Urban pre-emption right.

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

Transport noise sector
1,741 parcels
Archaeological site
784 parcels
Other information
263 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
1,149 parcels
Power lines
12 parcels
Remarkable heritage site
6 parcels

Addresses

2,831 addresses on 138 streets, from the Base Adresse Nationale (national address register). Each number links to its parcel when it is known.

See the 2,831 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
9% of the parcels' area with high exposure, 91% medium
Risk prevention plan
Not recorded in the Géoportail de l'Urbanisme

Property prices

Loading prices…

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)