At the Zuidersluis there is a late-19th century harbor office (Sluisplein 3), which in 1909 was based on plans by A.B. Marinkelle has been enlarged in the same style (later painted white).
Performed in functionalist style are the forem. day off for seafarers (Trawlerkade 104-106, 1929, A. ten Broeke) and the building IJmuider Federation (Trawlerkade 90; 1931, A.M.J. Sevenhuijsen), originally consisting of office, upstairs apartment and coffee house.