He was born in Antwerp as the youngest child of the painter and art dealer Lucas Smout the Elder and Anna Maria Tijssens. His father had studied under Artus Wolffort and was a figure painter. His mother was a member of the prominent Tijssens or Tyssens family of artists in Antwerp, which included artists such as January Baptist Tijssens the Younger.
His father died in 1674 and his mother in 1686.
Details about the life of Lucas Smout are scarce. Upon discovering Lucas" artistic talent, she sent him to study art under a master. Lucas was registered in 1685-1686 in the registers of the Antwerp Guild of Saint Luke as a pupil of the marine artist Hendrik van Minderhout.
Smout was active in Antwerp throughout his career but must have visited the Dutch Republic since he painted a few views of Scheveningen beach.
Smout was not very productive as he suffered from gout, which affected his hands. He died in Antwerp in 1713.
