Parcel 29252 000 ZL 577

Cadastral parcel of 5,699 m² (recorded area), in Saint-Jean-Trolimon. Planning document zones: UL and 1AU.

Recorded area: 5,699 m²
Planning zone: UL (97%) · 1AU (3%)Straddles 2 planning document zones.

The parcel (in colour) and its neighbours, from the cadastre; computed perimeter: 326 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: 5,681 m²from the cadastral plan
Perimeter: 326 mcomputed from the cadastral plan
Addresses: None linked
Clay soils: Low exposure (99% 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

Zone UL: before an extension, a shed or a division, read this zone’s rules (height, footprint, setbacks from the street and the boundaries). Guide: Turn the map finding into a specific question
Zone 1AU: building follows the arrival of services or a planned development; the PLU’s development guidelines describe what is planned. Guide: Start with the zone and its document
The parcel is split between 2 zones: each part follows the rules of its own zone. Guide: Read the documents, not just the colour
2 prescriptions, information areas or easements touch the parcel (details below): they apply on top of the zone’s rules. Guide: Read the documents, not just the colour
Radon potential category 3: it appears in the information given to buyers and tenants; ventilating and, during works, sealing between the ground and the building reduce exposure. Guide: Prepare the formal risk statement

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

UL – Urban zone (U)

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

97% of the parcel
Document: 29252_PLU_20220204

1AU – Development zone (AUc)

Area set aside for development: building is allowed as services arrive or as part of a wider scheme, under the PLU rules.

3% of the parcel
Document: 29252_PLU_20220204

Addresses

No address from the Base Adresse Nationale is linked to this parcel.

All addresses in Saint-Jean-Trolimon

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

Road, path or public transport to keep or create: Voie piétons et cycles – line on the parcel or its boundary

See the document on the Géoportail de l'Urbanisme

Local plan information

Urban pre-emption right: Périmètre de droit de préemption urbain commune – 100% of the parcel

See the document on the Géoportail de l'Urbanisme

Public-utility easements

Not recorded in the Géoportail de l'Urbanisme

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: Low exposure (99% of the parcel)
Risk prevention plan: Not recorded in the Géoportail de l'Urbanisme
Seismic zone: Zone 2 (low)
Radon potential: Category 3 (significant)

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

The parcel in its section

By recorded area, larger than 92% of the 396 parcels of section ZL whose area is recorded.
Median recorded area in the section: 822 m².
162 of the section’s 396 parcels have a linked building, 181 an address.
Saint-Jean-Trolimon has 2,696 parcels; this one holds 0.04% of their total recorded area.

Details

Cadastral reference: 29252 000 ZL 577 (29252000ZL0577)
Commune: Saint-Jean-Trolimon (29252)
Prefix: 000
Section: ZL
Number: 577
Recorded area (contenance): 5,699 m²
Computed area: 5,681 m² Computed from the plan, may differ from the recorded area.

Planning in this commune

Planning document: Local zoning plan (PLU) (29252_PLU_20220204)

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):

Natural and forest zone (N) (55%)
Agricultural zone (A) (40%)
Urban zone (U) (4%)
Closed development zone (AUs) (1%)
Development zone (AUc) (0%)

Source datasets used on this page: 6. Their dates and reuse terms can differ.

Sources and versions used on this page

Plan cadastral informatisé (Etalab) 2026-06-01 — Licence Ouverte / Open Licence 2.0
Cadastre Etalab redistributes the French digital cadastral plan in simplified geographic formats, including parcels, sections and buildings. Mapped boundaries do not replace a boundary survey.
Géoportail de l’Urbanisme — extraction nationale 2026-08-15 — Licence Ouverte / Open Licence 2.0
The national Urban Planning Geoportal extraction brings together layers published by the GPU from documents supplied by municipalities, intermunicipal authorities and state services. The competent authorities remain responsible for the documents and their regulatory meaning.
Base Adresse Nationale (listes d’adresses et géocodage Géoplateforme) 2026-10-07 — Licence Ouverte / Open Licence 2.0
The Base Adresse Nationale brings together French addresses, including those published by municipalities. Address coordinates alone do not establish an administrative link to a cadastral parcel.
Exposition au retrait-gonflement des argiles 2026-07-02 — Licence Ouverte / Open Licence 2.0
The clay shrink-swell exposure map describes geological exposure at the map’s scale. It does not replace a site-specific geotechnical investigation.
Zonage sismique de la France (décret n° 2010-1255), liste version janvier 2015 2018-07-30 — Licence Ouverte / Open Licence 1.0
This vector layer published by wpd is based on the BRGM / planseisme.fr list of municipalities and seismic zones, January 2015 version. Municipal zoning does not measure the structural risk of an individual building.
Potentiel radon des communes (arrêté du 27 juin 2018) 2019-05-06 — Licence Ouverte / Open Licence 1.0
Radon potential zoning classifies municipalities according to their geological potential to emit radon. It does not measure the indoor radon concentration of an individual building.