The toy manufacturer has announced an expansion of its plant in Monterrey, Nuevo León.
The Lego Group will invest up to $800 million to increase capacity at the seven-year-old factory, creating up to 3,000 jobs.
Construction is to begin before the end of the year, whilst a company executive claimed that exact details of the expansion and the investment will depend on future demand for Lego products.
Investments in the new manufacturing capacity were also announced for Denmark and Hungary.
The enlarged Mexico factory, in Cienega de Flores near Monterrey, will feature moulding Lego System bricks, and processing and packaging. It currently has 3,500 employees, a number that could rise to 6,500, depending on sales.
The existing plant measures 150,000 square meters, which could be increased to as much as 340,000, again depending on sales.
Over a year ago, the company completed its most recent expansion in Nuevo León, adding 48,000 square meters to the factory and creating 1,000 jobs.