The La Maison is part of the limited edition French Chateau collection can either be purchased completed for 50 FV$ farm cash or you can purchase the frame only for 5,000 coins along with utilizing the help of your FarmVille neighbors for free building supplies and materials.
The process of building will work similarly to other buildings that require neighbor help, such as the Barn Raising, Horse Stable and Chicken Coop expansion.
The La Maison is NOT a building with purpose, it is only a decorative building. You can only have one buildable La Maison, but may purchase as many as you want with farm cash.
For more details on La Maison building please read below, after pics.
La Maison Building details from Zynga Community Manager Lexilicious:
"The La Maison foundation can be purchased from the Buildings section of Market for 5,000 Coins.
Once you've placed the Foundation on your farm, you will be prompted with a message letting you know that you can post a feed to ask you friends for help building your Maison. Clicking the "Share" button will give you the option to post a feed to your wall asking your Neighbors for help.
In order to complete your La Maison, you'll need to finish building it. Selecting 'Look Inside' from your foundation's menu will show you what you need to complete your La Maison. When you first place the foundation, you'll have one Slate Tile already. In order to build a complete La Maison you'll need 10 of each item. You can get these items one of two ways:
1. From neighbors via the Free Gifts menu.
Neighbors can send you the components you need to build your La Maison. Your Neighbors will be able to send you two of the five types of building components to help you complete your La Maison.
Please note that the two components displayed on the Free Gifts Page are randomized. As such, the components displayed on the Free Gifts Page may be different for each user.
When neighbors send you a building component, it works exactly like any other free gift. After you accept the gift it will appear in your gift box.
After clicking the "use" button under the gift it will automatically be added to your La Maison.
2. Purchasing components from the Market,
You can purchase components required to build your La Maison from the Market for 1 Farm Cash per item.
When you reach 25 items, you'll receive pop-up that will allow you to post a feed to your wall. The first ten neighbors to click this feed will receive a random building component for their own La Maison construction.
When you complete your La Maison, you will receive a popup asking you if you'd like to share the news with your friends. Clicking the Share button on this popup will give you the option to post a feed to your wall that will give up to five neighbors who click on it a free Provencal Pot.
Please remember that the La Maison is only a decorative item. It does not have any additional functionality.
You will not be able to store the La Maison in storage.
You are only able to have ONE buildable La Maison on your Farm(even when it's complete you will be unable to start building a new one).
Alternatively, you can have an infinite number of the La Maisons if they are purchased with Farm Cash."
(Source: Zynga's Official FarmVille Forums)
This article originally appeared on FarmVille Freak.