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56 Rue Jourdan, 17000 La Rochelle

Parcel of 400 m² (recorded area) with a residential building, built 1901 – 1949. Planning document zoning: urban zone (UM1).

Recorded area
400 m²
Planning zone
UM1Urban zone (U)
Open in the map

Address from France’s national address register (BAN), associated with this parcel for information only. Addresses and how they are linked

17300 000 AO 3517300 000 AO 3617300 000 AO 4317300 000 AO 4417300 000 AO 4517300 000 AO 4717300 000 AO 4817300 000 AO 45717300 000 AO 46417300 000 AO 46717300 000 AO 46817300 000 AO 46917300 000 AO 47017300 000 AO 47117300 000 AO 47217300 000 AO 47317300 000 AO 47417300 000 AO 47517300 000 AO 47617300 000 AO 47717300 000 AO 47817300 000 AO 47917300 000 AO 48017300 000 AO 48117300 000 AO 48217300 000 AO 48317300 000 AO 48417300 000 AO 64717300 000 AO 64817300 000 AO 64917300 000 AO 65017300 000 AO 65117300 000 AO 65217300 000 AO 65317300 000 AO 65417300 000 AO 65517300 000 AO 65617300 000 AO 65717300 000 AO 81917300 000 AO 82017300 000 AO 82117300 000 AO 82317300 000 AO 825
The parcel (in colour) and its neighbours, from the cadastre; computed perimeter: 91 m. North is up; the bar gives the scale.
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)

At a glance

Computed area
404 m²from the cadastral plan
Perimeter
91 mcomputed from the cadastral plan
Buildings
1 buildingResidential
Built
1901 – 1949
Height to the eaves
8.4 m
Storeys
2 (ground floor included)
Dwellings
1
Addresses
1 linked address
Clay soils
High exposure (100% of the parcel)
Risk prevention plans
Not recorded

This parcel’s figures, from the cadastre, the national address base (BAN), IGN’s BD TOPO and the risk databases. Missing data is not shown.

What this means for a project

Points drawn from this parcel’s data. They tell you which questions to ask; they do not replace a certificat d’urbanisme or the official statement of risks.

Understanding the map information

Planning zoning

UM1 – Urban zone (U)

Urban zone family. This category does not establish permission to build: check the local code, applicable rules and parcel constraints.

100% of the parcel
Document: 241700434_PLUI_20260305

Addresses

Source: Base Adresse Nationale (national address register). “Linked by its position”: the address point lies inside the parcel. “Linked by its building (RNB)”: the building that carries the address in the national building register (Référentiel National des Bâtiments) stands on the parcel. “Linked by IGN (BAN PLUS)”: IGN matches the address to this parcel, the nearest one on the same side of the street, and the address point lies inside it. In these cases the Base Adresse Nationale declares no link.

All addresses in La Rochelle

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”.

National clay exposure (BRGM/Géorisques) and labels in the local planning document are separate sources: dates, methods and purposes may differ. Both values are retained; neither replaces the other. Check the national map and local rules with the authorities. Data versions: national clay layer 2026-07-02; GPU extraction 2026-08-15. Géorisques: soil studies and construction

Parking
Stationnement zone 2bis – 100% of the parcel
Other prescription
Droit de préemption urbain – 100% of the parcel
Other prescription
Périmètre d'équilibre social de l'habitat - Secteur 4 – 100% of the parcel

See the document on the Géoportail de l'Urbanisme

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”.

Sanitation zoning
zonage d'assainissement collectif – 100% of the parcel
Other information
Zone blanche – 100% of the parcel
Transport noise sector
Fuseau de nuisances sonores – 3% of the parcel

See the document on the Géoportail de l'Urbanisme

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”.

Remarkable heritage site
Site patrimonial remarquable de La Rochelle (ZPPAUP) – 100% of the parcel
Railways
SUP T1 de la Charente-Maritime – 47% of the parcel

Documents on the Géoportail de l'Urbanisme: document 1, document 2

Buildings

Indicative data (IGN BD TOPO): buildings IGN links to the parcel (BAN PLUS) when they cover at least 20 m² of it, with information from the tax files (DGFiP), anonymised. An unknown height or number is not shown. Construction years are grouped into periods, because old buildings often carry an estimated round year (1800, 1900…). A building standing on several parcels is counted on each, with all its dwellings. Recent buildings may be missing: the tax files are updated with a delay.

On the parcel
1 building
Use
Residential
Height to the eaves
8.4 m
Storeys
2 (ground floor included)
Dwellings
1
Built
1901 – 1949

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.

Some clay soils swell when wet and shrink as they dry, which can crack buildings. The higher the exposure, the more building precautions are needed. A risk prevention plan (PPR) maps the areas exposed to a hazard (flooding, ground movement, an industrial site…) and sets building rules there. The Géoportail de l'Urbanisme does not list every plan yet.

Clay shrink-swell
High exposure (100% of the parcel)
Risk prevention plan
Not recorded in the Géoportail de l'Urbanisme
Seismic zone
Zone 3 (moderate)
Radon potential
Category 1 (low)

National clay exposure (BRGM/Géorisques) and labels in the local planning document are separate sources: dates, methods and purposes may differ. Both values are retained; neither replaces the other. Check the national map and local rules with the authorities. Data versions: national clay layer 2026-07-02; GPU extraction 2026-08-15. Géorisques: soil studies and construction

Produce the risk statement (ERRIAL) on GéorisquesRisks near an address (Géorisques)

The parcel in its section

Details

Cadastral reference
17300 000 AO 477 (17300000AO0477)
Commune
La Rochelle (17300)
Prefix
000
Section
AO
Number
477
Recorded area (contenance)
400 m²
Computed area
404 m² Computed from the plan, may differ from the recorded area.

Planning in this commune

Planning document
Intermunicipal zoning plan (PLUi) (241700434_PLUI_20260305)

Find the applicable document on the official GPU map

Document identified in the data, without assurance that it covers the whole commune or every parcel. Several documents may apply. Check coverage and the current version with the town hall or GPU. 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”.

Planning zones (share of parcel area):

Source datasets used on this page: 8. Their dates and reuse terms can differ.

Sources and versions used on this page

Neighbouring parcels

Previous parcel: 17300 000 AO 476 – 58 Rue Jourdan, 17000 La RochelleNext parcel: 17300 000 AO 478 – 54 Rue Jourdan, 17000 La Rochelle