Nieuw-Mathenesse is a neighborhood in Rotterdam situated near Keilehaven, a port basin on the city's waterfront.

The area is home to roughly 1,100 residents, with a demographic mix dominated by single- and two-person households employed largely in consulting, research, and specialist business services.

Keilehaven itself is being transformed as part of Rotterdam's citywide "River as Tidal Park" initiative, which aims to shift the riverbanks from purely industrial use toward ecological and recreational infrastructure.

The Tidal Park Keilehaven reintroduces a natural estuarine system into the urban fabric, making the delta's tidal dynamics visible and accessible to visitors and residents exploring this evolving waterfront access point.