From the Back of the box:

Le Grand Hameau - 30 New Special Buildings, created by fans of the base game, with fine tuning by Grzegorz Kobiela and Uwe Rosenberg.

Maybe using the Central Station is a good idea to move fast between buildings, or to go to the stock market to earn money from your opponents' transactions?

Le Grand Hameau breathes new and exciting life into the French harbour town.

Le Havre - Le grand Hameau is only playable with the Le Havre base game.

From the side of the box:

Lookout Games and the author want to thank all playtesters. Special kudos to Grzegorz Kobiela for all his suggestions and his dedication. This expansion features cars orginally designed by Jay Volk, Darrell Perrins, Kevin Lee, Mikko Ammala, Anthony Snider, Eric Boivin, Ken Robers and Matt Tonks.