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Église Saint-ArmelÉglise Saint-Armel · Photo: Philippe Alès · CC BY-SA 4.0
23historic monuments
History of Ploërmel · Monuments historiques

23 historic monuments, more per resident than 96% of compared French towns

The Culture ministry lists 23 historic monuments in Ploërmel: 3 classé (France’s highest heritage protection) and 20 inscrit (the second level). The oldest date from the 12th century. We have photos of 21 of them.

Monuments historiques
23
23 per 10,000 residents
median compared town 2.5
Classé
3
the highest protection
Inscrit
20
the second level
Oldest part
12th c.
of any listed monument
Homes before 1919
7.5%
median compared town 7.4%
In pictures

Ploërmel in 21 photos

Nearly every classé monument, photographed. 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.

Towns its size

Ploërmel has the most monuments of 41 towns its size

Compared French towns of 10,000 to 10,300 residents, by historic monuments.

Ploërmel23
Apt16
#1 of 41for monuments per resident (23 per 10,000). Most per resident: Ploërmel, Parthenay and Apt.

The median town of these has 1. 12 of the 41 have none.

Map

Where Ploërmel’s monuments stand

Every monument with a point on the ministry’s list; the larger, darker dots are classé.

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. 1 monument has no point on the map.

Classé

3 classé monuments in Ploërmel

Classé is France’s highest protection for a building, held by about a third of the monuments on the list. 1 of the 3 is protected in part only (a façade, a roof, a room). Each card opens the monument’s page.

Inscrit

20 inscrit monuments in Ploërmel

Inscrit is the second level of protection: the building is worth keeping, and any work on it must be declared.

All 18, A to Z

3 more, named only by their kind

3 more are named in the list only by their kind: 3 others, most from the 12th century. The one with an address is in the list above, by it.

12th c.1
17th c.1
undated1

See all 23 on the map

What’s protected

Most of Ploërmel’s monuments are churches and religious buildings

Each monument under the main domain Mérimée gives it.

Religious buildings13
Houses & homes7
Military & fortified1
Tombs & cemeteries1
Bridges & engineering1

Religious buildings: 13 of 23 monuments (57%).

Mérimée files each monument under one main domain: a château with its chapel counts once.

How old

How old Ploërmel’s monuments are

Each monument once, by the oldest part the list dates.

Prehistory & Antiquity to the 4th c.0
Middle Ages 5th–15th c.4
16th to 18th century Renaissance to Revolution15
19th century 1801–19000
20th century and later since 19010

4 of 19 dated monuments have parts from before 1500. The oldest dated: Chapelle Saint-Antoine (15th c.). 4 monuments have no date on the list.

When protected

11 of Ploërmel’s monuments were protected in 1927

Monuments by the year they were first protected.

1927 · 11
1840186018801900192019401960198020002020

First protected, in 1840: Église Saint-Armel. That was France’s first list of monuments historiques, drawn up in Prosper Mérimée’s time as inspector. 11 were protected in 1927 alone. 1 has been added since 2011.

Born before 1900

13 people born in Ploërmel before 1900

Their lives on one line.

Sébastien de Guémadeuc
Mathurin Jean François Obelin-Kergal
Rodolphe Claude Perret de Trégadoret
Joseph-Golven Tuault de La Bouverie
Mathurin Desbois
François, Marie Perret De Lalande
Victor René Garson
François-Marie-Hyacinthe Dahirel
Charles Louis Baptiste Lebreton
Raoul de Navery
Noémie Dondel du Faouëdic
André Madeline
Alexis Le Strat
16001650170017501800185019001950
CL
Charles Louis Baptiste Lebreton1807– · French politician
RN
Raoul de Navery1831–1885 · French novelist
SG
Sébastien de Guémadeuc1626–1702 · French priest
MJ
Mathurin Jean François Obelin-Kergal1736–1819 · French politician
RC
Rodolphe Claude Perret de Trégadoret1741–1798 · French politician
JG
Joseph-Golven Tuault de La Bouverie1744–1822 · French politician
MD
Mathurin Desbois1746– · French politician
FM
François, Marie Perret De Lalande1756–1837 · French politician

Everyone born in Ploërmel Birthplaces from Wikidata, checked against Wikipedia.

Neighbors

Historic monuments in the towns around Ploërmel

TownResidentsMonumentsClasséProtected area
Ploërmel10,163233—
Val d'Oust2,80771—
Josselin2,584193Yes
Malestroit2,558112Yes
Sérent3,42932—
Mauron3,16310—
Guer6,20843—
In brief

Ploërmel in brief

Few towns are as rich in historic monuments as Ploërmel: per resident it has more than 96% of compared French towns. In all there are 23 historic monuments, 3 of them classé, including Église Saint-Armel. No town its size has more historic monuments: it leads the 41 nearest in population. Its classé monuments cluster together: 3 of them stand within 400 m of Ancien hôtel des Ducs de Bretagne. In 2019 the Mission Patrimoine picked Ancien couvent des Carmélites as a monument in danger to save.

Most entries on the list, 57%, are churches and religious buildings. Most of its dated monuments come from the 16th to 18th centuries: 15 of 19. Otherwise the figures are ordinary: 7.5% of its homes were built before 1919, close to the 7.4% in the median compared French town.

How to read these numbers

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 Ploërmel

How many historic monuments are there in Ploërmel?

The Culture ministry lists 23 historic monuments in Ploërmel: 3 classé and 20 inscrit.

Which monuments in Ploërmel are classé?

3, among them Église Saint-Armel, Ancien hôtel des Ducs de Bretagne and Maison dite des Marmousets.

How old are the monuments of Ploërmel?

The oldest parts of its listed monuments date from the 12th century.

When were monuments in Ploërmel first protected?

The first in 1840, the latest in 2011.

How old are the homes in Ploërmel?

7.5% 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 4, 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.