It then heads northwest, crossing the broad street Nieuwezijds Voorburgwal at Martelaarsgracht, until it hits the Singel canal, where it continues westwards as the Haarlemmerstraat [nl].

[6] Archeological excavations on the grounds of the former Cinema Royal at Nieuwendijk 154 revealed a house dating to 1225, half a century before the first mention of the town in written records.

[7][8] Archeological excavations also revealed a small castle at the corner of Nieuwendijk and the alley Dirk van Hasseltsteeg, built around 1275.

This was possibly related to the 1303-1304 occupation of Amsterdam by Jan van Amstel, following which Count Wiliam III of Holland ordered the town to demolish its defences.

[5] Shortly after 1390, a number of buildings at the southern end of Nieuwendijk were cleared to create a square along the dam on the Amstel river called De Plaats ("The Place"), and a town hall was built there.

Entrepreneur Roland Kahn [nl] (owner of fashion retailer MS Mode) also opened his first shop on the Nieuwendijk.