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Saint-Nazaire cadastre

Loire-Atlantique (44)

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Parcels
37,796
Cadastral sections
138
Recorded area (contenance)
4,292.7 ha
Commune code (INSEE)
44184

Sections

Planning

Planning document
Intermunicipal zoning plan (PLUi) (244400644_PLUI_20251216)

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”.

Cover more than 90% of the parcels: Parking requirements of the mobility plan.

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

Social housing quota sector
20,722 parcels
Minimum building density
11,431 parcels
Protected built or landscape heritage
7,126 parcels
Other prescription
6,270 parcels
Classified woodland (EBC)
2,115 parcels
Development guidelines (OAP)
1,935 parcels
Remarkable coastal area
1,877 parcels
Road, path or public transport to keep or create
1,716 parcels
Height
1,459 parcels
Reserved site
512 parcels
Building placement rules
396 parcels
Retail diversity to protect or develop
337 parcels
Building volume
103 parcels
Rebuilding or demolition rules
19 parcels
Mix of uses
13 parcels
Building rights bonus
9 parcels
Buildings in a farm or natural zone
1 parcel
Ecological corridor (green and blue network)
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
27,451 parcels
Peri-urban farmland protection
8,591 parcels
Commercial pre-emption right
3,162 parcels
Planning decision deferral area
2,168 parcels
Joint development zone (ZAC)
1,568 parcels
Land divisions subject to declaration
1,564 parcels
Partnership urban project (PUP)
60 parcels
Archaeological site
7 parcels
Transport noise sector
4 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
2,002 parcels
Railways
908 parcels
Power lines
787 parcels
Listed monument and its surroundings
139 parcels
Classified installation or polluted site
96 parcels
Watercourse maintenance access
3 parcels

Addresses

22,701 addresses on 1,123 streets, from the Base Adresse Nationale (national address register). Each number links to its parcel when it is known.

See the 22,701 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 3 (moderate)
Radon potential
Category 1 (low)
Clay shrink-swell
19% of the parcels' area with medium exposure, 80% low
Risk prevention plan
Natural or mining risk plan (PM1): 2,845 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)