1 Rue du 8 Mai 1945, 78210 Saint-Cyr-l'École
12 buildings with 74 recorded homes, built 2000 or later, on a parcel of 1.2 ha (recorded area). Planning document zoning: urban zone (UAr).
- Recorded area
- 1.2 ha
- Planning zone
- UArUrban zone (U)
Address from France’s national address register (BAN), associated with this parcel for information only. Addresses and how they are linked
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
- 1.2 hafrom the cadastral plan
- Perimeter
- 492 mcomputed from the cadastral plan
- Buildings
- 12 buildingsResidential
- Built
- 2000 or later
- Height to the eaves
- up to 15.2 m
- Dwellings
- 74
- Addresses
- 1 linked address
- Clay soils
- High exposure (100% of the parcel)
- Risk prevention plans
- 1 plan 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 UAr: 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
- PPRN mouvements différentiels de terrain liés aux argiles sur la commune de Saint-Cyr-l-Ecole covers 100% of the parcel: its rules may forbid or restrict building; read them before any project. Guide: Identify the scope of each finding
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
UAr – 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: 78545_PLU_20220907
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.
- 1 Rue du 8 Mai 1945, 78210 Saint-Cyr-l'École (linked by IGN (BAN PLUS))
All addresses in Saint-Cyr-l'École
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
Not recorded in 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
- Droit de Préemption Urbain simple – 100% of the parcel
- Development tax sector
- Taxe d'aménagement : 12% (Zone UAr) – 100% of the parcel
- Commercial pre-emption right
- Droit de Préemption Commercial – 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
- Abbaye Notre-Dame des Anges (ancienne) – 100% of the parcel
- Listed monument and its surroundings
- Domaine national de Versailles et de Trianon – 100% of the parcel
- Listed monument and its surroundings
- Ecole spéciale militaire – 97% of the parcel
See the document on the Géoportail de l'Urbanisme
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
- 12 buildings
- Use
- Residential
- Height to the eaves
- up to 15.2 m
- Storeys
- up to 5 (ground floor included)
- Dwellings
- 74
- Built
- 2000 or later
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
- Natural or mining risk plan (PM1) – PPRN mouvements différentiels de terrain liés aux argiles sur la commune de Saint-Cyr-l-Ecole – 100% of the parcel
- 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 98% of the 225 parcels of section AC whose area is recorded.
- Median recorded area in the section: 252 m².
- 105 of the section’s 227 parcels have a linked building, 105 an address.
- Saint-Cyr-l'École has 2,835 parcels; this one holds 0.25% of their total recorded area.
Details
- Cadastral reference
- 78545 000 AC 324 (78545000AC0324)
- Commune
- Saint-Cyr-l'École (78545)
- Prefix
- 000
- Section
- AC
- Number
- 324
- Recorded area (contenance)
- 1.2 ha
- Computed area
- 1.2 ha Computed from the plan, may differ from the recorded area.
Planning in this commune
- Planning document
- Local zoning plan (PLU) (78545_PLU_20220907)
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):
- Urban zone (U) (58%)
- Natural and forest zone (N) (27%)
- Agricultural zone (A) (14%)
- Development zone (AUc) (1%)
Source datasets used on this page: 8. 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.
- BAN PLUS (rattachement géométrique adresse → parcelle)
2026-06-15— Licence Ouverte / Open Licence 2.0BAN PLUS is IGN’s product linking Base Adresse Nationale addresses to reference geographic objects, including cadastral parcels, using geometric matching.
- 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.
- BD TOPO® – bâtiments (usage, hauteur, niveaux, logements, année de construction)
2026-06-15— Licence Ouverte / Open Licence 2.0BD TOPO is IGN’s vector topographic reference dataset. Its building component describes footprints and available attributes such as use, height and selected construction information.
Neighbouring parcels
- 78545 000 AC 127
- 78545 000 AC 151 – 1A Promenade des Anges, 78210 Saint-Cyr-l'École
- 78545 000 AC 152 – 1 Allee de la Machine de Marly, 78210 Saint-Cyr-l'École
- 78545 000 AC 153 – 9A Promenade des Anges, 78210 Saint-Cyr-l'École
- 78545 000 AC 155 – 2 Promenade des Anges, 78210 Saint-Cyr-l'École
- 78545 000 AC 177 – 50 Rue des Demoiselles de Saint Cyr, 78210 Saint-Cyr-l'École
- 78545 000 AC 178 – 48 Rue des Demoiselles de Saint Cyr, 78210 Saint-Cyr-l'École
- 78545 000 AC 229 – 11 Promenade des Anges, 78210 Saint-Cyr-l'École
- 78545 000 AC 230 – 9 Promenade des Anges, 78210 Saint-Cyr-l'École
- 78545 000 AC 281
- 78545 000 AC 282
- 78545 000 AC 285
- 78545 000 AC 286
- 78545 000 AC 287
- 78545 000 AC 294
- 78545 000 AC 295
Previous parcel: 78545 000 AC 323Next parcel: 78545 000 AC 325