The historic town centre is well preserved and is protected by law as an urban monument zone.

Kostelec nad Labem consists of two municipal parts (in brackets population according to the 2021 census):[2] Kostelec nad Labem is located about 15 kilometres (9 mi) south of Mělník and 14 km (9 mi) north of Prague.

The first known owners of Kostelec were the Borš family from Osek, which the settlement was took over by Ottokar II in 1270.

[3] In the 15th century, Kostelec was owned by the Berka of Dubá family, from whom the Queen Joanna of Rožmitál, the widow of King George of Poděbrady, purchased it.

Jews were mostly buyers, they bought houses in the town, the municipal council also reserved a cemetery for them.

[6] The originally a Gothic town hall was rebuilt in the Renaissance style after a fire in 1551, and heavily modified in 1727 and 1820. it is a foot corner building with a prismatic tower, divided by rectangular windows with a pillar in the corner.

[7] Church of Saint Vitus is a late Gothic building with a presbytery built before 1492, and three-nave from the beginning of the 16th century.