Educated in England, he acquired there a notable capacity for business. During his stay at the park near the Santa Lucía River, which today is named after him, he experimented with wine production and forestry. He imported special plants and animals; he also investigated the cultivation of silkworms, which was to become the first serious effort after that of Dámaso Antonio Larrañaga.
Federico Nin Reyes and Charles Tellier, Lecocq is credited as being an inventor of a type of refrigerating plant for use on ocean vessels, to preserve meats and other perishable food. Lecocq was in charge of testing the first versions of the equipment. He carried out this experiment on board of The City of Rio de Janeiro, in 1868.