Parcel 78486 000 AM 185
Cadastral parcel of 5,133 m² (recorded area), in Le Perray-en-Yvelines. Planning document zoning: urban zone (UCa).
- Recorded area
- 5,133 m²
- Planning zone
- UCaUrban zone (U)
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
- 5,124 m²from the cadastral plan
- Perimeter
- 432 mcomputed from the cadastral plan
- Addresses
- None linked
- 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
- Zone UCa: 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
- 6 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
- Clay soils: High exposure (100% of the parcel). General rule in medium or high exposure areas: the seller of unbuilt buildable land supplies a preliminary geotechnical study where planning rules permit individual houses. Exposure alone does not establish that this sale is covered. Construction projects are subject to separate rules to check with the professional. Géorisques: soil studies and construction
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
- French planning: who decides what
- The public data behind the map
- Reading and finding a cadastral reference
- Cadastre and boundary surveys: where does the land end?
- Reading a PLU: a zone label does not define a project
- Recorded and calculated parcel area: why two figures?
- Addresses and parcels: why they do not always match
- Parcel owners: what the map does not show and where to ask
- Dividing a plot: preparing a land division
- Property risks: from a map finding to a proper check
Planning zoning
UCa – 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: 78486_PLU_20231207
Addresses
No address from the Base Adresse Nationale is linked to this parcel.
All addresses in Le Perray-en-Yvelines
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
- Development guidelines (OAP)
- Secteur d'OAP – 100% of the parcel
- Classified woodland (EBC)
- Espace boise classe – 57% of the parcel
- Landscape feature preserved for ecology
- Lisiere en SUC – 22% of the parcel
- Landscape feature preserved for ecology
- Lisiere – 18% 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”.
- Urban pre-emption right
- perimetre de droit de preemption urbain (R123-13 4) – 100% 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”.
- Listed monument and its surroundings
- Croix de Saint-Jacques – 3% of the parcel
See the document on 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
- High exposure (100% of the parcel)
- Risk prevention plan
- Not recorded in the Géoportail de l'Urbanisme
- Seismic zone
- Zone 1 (very low)
- 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
- By recorded area, larger than 97% of the 229 parcels of section AM whose area is recorded.
- Median recorded area in the section: 492 m².
- 178 of the section’s 229 parcels have a linked building, 190 an address.
- Le Perray-en-Yvelines has 3,290 parcels; this one holds 0.04% of their total recorded area.
Details
- Cadastral reference
- 78486 000 AM 185 (78486000AM0185)
- Commune
- Le Perray-en-Yvelines (78486)
- Prefix
- 000
- Section
- AM
- Number
- 185
- Recorded area (contenance)
- 5,133 m² Contenance arpentée (measured on site).
- Computed area
- 5,124 m² Computed from the plan, may differ from the recorded area.
Planning in this commune
- Planning document
- Local zoning plan (PLU) (78486_PLU_20231207)
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) (45%)
- Agricultural zone (A) (29%)
- Urban zone (U) (24%)
- Closed development zone (AUs) (2%)
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 2.0Cadastre 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 2.0The 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 2.0The 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 2.0The 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 1.0This 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 1.0Radon potential zoning classifies municipalities according to their geological potential to emit radon. It does not measure the indoor radon concentration of an individual building.
Neighbouring parcels
- 78486 000 AM 98 – 18 Rue de la Grimace, 78610 Le Perray-en-Yvelines
- 78486 000 AM 99 – 20 Rue de la Grimace, 78610 Le Perray-en-Yvelines
- 78486 000 AM 101
- 78486 000 AM 158
- 78486 000 AM 162 – 23 Rue de la Forêt Verte, 78610 Le Perray-en-Yvelines
- 78486 000 AM 163 – 21 Rue de la Forêt Verte, 78610 Le Perray-en-Yvelines
- 78486 000 AM 164 – 19 Rue de la Forêt Verte, 78610 Le Perray-en-Yvelines
- 78486 000 AM 165 – 17 Rue de la Forêt Verte, 78610 Le Perray-en-Yvelines
- 78486 000 AM 166 – 15 Rue de la Forêt Verte, 78610 Le Perray-en-Yvelines
- 78486 000 AM 167 – 13 Rue de la Forêt Verte, 78610 Le Perray-en-Yvelines
- 78486 000 AM 170 – 68 Rue de la Forêt Verte, 78610 Le Perray-en-Yvelines
- 78486 000 AM 171 – 70 Rue de la Forêt Verte, 78610 Le Perray-en-Yvelines
- 78486 000 AM 172 – 72 Rue de la Forêt Verte, 78610 Le Perray-en-Yvelines
- 78486 000 AM 173 – 74 Rue de la Forêt Verte, 78610 Le Perray-en-Yvelines
- 78486 000 AM 174 – 76 Rue de la Forêt Verte, 78610 Le Perray-en-Yvelines
- 78486 000 AM 175 – 80 Rue de la Forêt Verte, 78610 Le Perray-en-Yvelines
Previous parcel: 78486 000 AM 184 – 94 Rue de la Forêt Verte, 78610 Le Perray-en-YvelinesNext parcel: 78486 000 AM 186 – 96 Rue de la Forêt Verte, 78610 Le Perray-en-Yvelines