2 historic monuments, none of them classé
The ministry first listed a monument in Le Plessier-sur-Saint-Just in 1951. On the list for Le Plessier-sur-Saint-Just: Ancienne porte and Ancienne porte. The oldest date from the 17th century.
Monuments of Le Plessier-sur-Saint-Just in pictures
Tap a photo to step through them full screen.
Photos from Wikimedia Commons, copied to our own server, each credited to its photographer with its license; names open the monument’s page.
Where Le Plessier-sur-Saint-Just’s monuments stand
Every monument with a point on the ministry’s list; the larger, darker dots are classé.
Tap a dot to open the monument’s page: its record, photo and the monuments around it.
Classé is the higher protection: any work on the building needs the State’s permission. Work on an inscrit building must be declared to the State in advance. Around both, building work in sight of the monument (usually within 500 m) needs the agreement of the architecte des Bâtiments de France.
Points as the ministry gives them: a monument spread over several plots has one point.
2 inscrit monuments in Le Plessier-sur-Saint-Just
Inscrit is the second level of protection: the building is worth keeping, and any work on it must be declared.
Inscrit
Inscrit17% of homes in Le Plessier-sur-Saint-Just were built before 1919
Main homes by when they were finished, beside the median compared French town (the tick).
17% of its main homes were built before 1919; the median compared French town has 7.4%. More of them were finished between 1971 and 1990 than in any other period (30%).
INSEE, census 2023: main homes (résidences principales) only; second homes and empty homes aren’t dated.
Historic monuments in the towns around Le Plessier-sur-Saint-Just
| Town | Residents | Monuments | Classé | Protected area |
|---|---|---|---|---|
| Le Plessier-sur-Saint-Just | 521 | 2 | 0 | — |
| Saint-Just-en-Chaussée | 5,810 | 0 | 0 | — |
| Fitz-James | 2,514 | 1 | 0 | — |
| Agnetz | 3,058 | 2 | 2 | — |
| Clermont | 10,564 | 8 | 3 | — |
| Breuil-le-Vert | 3,183 | 2 | 1 | — |
| Estrées-Saint-Denis | 3,664 | 0 | 0 | — |
Le Plessier-sur-Saint-Just in brief
More of Le Plessier-sur-Saint-Just’s homes are old than in most places: 17% were built before 1919, against 7.4% in the median compared French town. All told, the list holds 2 historic monuments, including Ancienne porte. The oldest, Ancienne porte, dates from the 17th century. Beyond that, Claude-Juste-Alexandre Legrand (1762) was born here before 1900; and all its entries went on the list in 1951.
What this data can and can’t tell you
- Monuments historiques. France protects buildings at two levels. Classé, the higher (about a third of the list), means any work needs the State’s permission; inscrit means work must be declared to the State in advance. The Culture ministry’s Mérimée base lists every protected building, and this page counts them.
- Partly protected. Many entries protect part of a building only (its façades and roofs, a staircase, a painted room). Each counts as one monument, like a fully protected one.
- Where a monument is counted. In the commune named on its protection, moved to today’s commune where communes have since merged. A monument listed for several communes counts in each.
- Sites patrimoniaux remarquables. Since 2016 France’s protected historic areas (the former secteurs sauvegardés, ZPPAUP and AVAP) share one name. Inside one, building work follows the area’s plan and needs the agreement of the architecte des Bâtiments de France.
- What isn’t here. Protected objects (furniture, organs, paintings), old buildings with no protection, UNESCO World Heritage listings and labels such as “Plus Beaux Villages de France” aren’t on this list, so this page doesn’t count them.
- No History Grade yet. Everything on this page is described, not graded: France’s History Grade isn’t built yet.
Questions about the history of Le Plessier-sur-Saint-Just
How many historic monuments are there in Le Plessier-sur-Saint-Just?
The Culture ministry lists 2 historic monuments in Le Plessier-sur-Saint-Just: 2 inscrit, none classé.
How old are the homes in Le Plessier-sur-Saint-Just?
17% of its main homes were built before 1919 (median compared French town: 7.4%).
France has no History Grade yet: this page describes, it doesn’t grade.
Sources: Ministère de la Culture, Mérimée base on POP (immeubles protégés au titre des monuments historiques), October 2026 · Ministère de la Culture, sites patrimoniaux remarquables, October 2026 · INSEE, census 2023 (main homes by build period) · Wikidata and Wikipedia (people born here) · Wikimedia Commons and Wikidata (photos of the monuments, each with its own credit and license) · IGN Admin Express (boundaries) · Medians and percentiles: TownRatings, over compared French towns, updated November 9, 2026. Under the Licence Ouverte / Open Licence 2.0 (Etalab).
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.