In 1898 he married consul's daughter Lalla Wiborg (1869-1953).[2] They had the son Alf Scott-Hansen (1903–1961), a film director who was once married to actress and singer, Wenche Foss (1917-2011).[4]
Scott-Hansen was an executive in Norsk Hydro from its start in 1905 until 1920. Here he re-joined Sam Eyde, who served as director-general, the highest executive in Norsk Hydro. After leaving the company, Scott-Hansen was the chief executive of Store Norsk-Franske Kolonikompani for one year, then chief engineer in Statens Havnevesen from 1922 and director from 1925.[2]
Scott-Hansen was admitted into the exclusive skiing club SK Ull in 1893. He served as deputy chairman from 1912 to 1916, and chairman from 1917 to 1928.[6] He was decorated as a Knight, Second Class of the House and Merit Order of Peter Frederick Louis.[5] He died in September 1936.[7]