Most ancient buildings are the ruins of the donjon, built in the 11th century and destroyed in 1425.
There is also near St Sauveur's church, dating from the 15th century.
In 768, the French king Pepin the Short offered the village of Maurepas (formerly spelled Malrepast) and its wooden keep to the Abbey of Saint-Denis. Facing the Normans' invasions, they left the domain to the Lords of Chevreuse. The castle and village were given to the family of Malrepast, a vassal of the Lords of Chevreuse, which gave its name to the village.
In 1432, during the Hundred Years' War, the English conquered the village and destroyed the keep.
After the war, the domain of Maurepas returned to the family of Chevreuse, but the castle remained a ruin.
Maurepas is served by no station of the Paris Métro, RER, or suburban rail network. The closest station to Maurepas is La Verrière station on the Transilien La Défense and Transilien Paris – Montparnasse suburban rail lines. This station is located in the neighboring commune of La Verrière, 0.7 km (0.43 mi) from the town center of Maurepas.
Demography
Historical population
Year
Pop.
±% p.a.
1793
247
—
1800
282
+1.91%
1806
255
−1.66%
1821
272
+0.43%
1831
306
+1.18%
1836
306
+0.00%
1841
288
−1.21%
1846
311
+1.55%
1851
283
−1.87%
1856
263
−1.46%
1861
262
−0.08%
1866
264
+0.15%
1872
242
−1.44%
1876
222
−2.13%
1881
232
+0.89%
1886
227
−0.43%
1891
242
+1.29%
1896
242
+0.00%
Year
Pop.
±% p.a.
1901
226
−1.36%
1906
252
+2.20%
1911
273
+1.61%
1921
284
+0.40%
1926
300
+1.10%
1931
286
−0.95%
1936
253
−2.42%
1946
325
+2.54%
1954
304
−0.83%
1962
352
+1.85%
1968
1,791
+31.15%
1975
13,577
+33.56%
1982
18,764
+4.73%
1990
19,718
+0.62%
1999
19,586
−0.07%
2007
18,789
−0.52%
2012
18,907
+0.13%
2017
18,281
−0.67%
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