Gradually Roelandt moved away from the severe Empire Style in which he had been trained, and introduced more and more Neo-Renaissance and Neo-Baroque features into his designs.
He also built churches in an early Gothic Revival style, such as the Sint-Annakerk in Ghent.
Among his most famous students were Louis Delacenserie and Louis van Overstraeten.
The daughter Adèle Sylvie of Lodewijk Roelandt was married to Joseph Geefs, the daughter Mathilde-Jeanne to Louis Van Overstraeten.