Sydenham Pit and Drainage Pumping Station 1, Heritage-listed stormwater pumping station and pit in Marrickville, Sydney, Australia

Sydenham Pit and Drainage Pumping Station 1 is a water control facility in Marrickville, Sydney, that is heritage-protected. The structure consists of a sandstone pit, three large pumps, and concrete fins that direct excess water into the Eastern Stormwater Channel.

The facility was built between 1935 and 1941 to address serious flooding in the Marrickville Valley area. The NSW Public Works Department created it as a solution to recurring water problems affecting the neighborhood.

The pit's walls are lined with pitched dry-packed ashlar sandstone blocks, dressed on four sides with a sparrow-picked face, and oleanders are planted along the site boundary. The pumping plant retains working 1930s machinery, including three Metropolitan Vickers pumps, and its original electrical mains equipment was kept in place during upgrading around 1992.

The site sits near Sydenham railway station and is visible from nearby streets. Visit during daylight hours to see the structures clearly and explore the surrounding area comfortably.

The pit's walls are lined with dry-packed ashlar sandstone blocks, dressed on four sides with a sparrow-picked face and laid in courses of about 300mm. The pumping plant retains three Metropolitan Vickers pumps, and its original electrical mains equipment survived the c. 1992 upgrading in situ.