It wouldn’t be easy to identify a modular home as they look very similar to site-built homes. One of the most obvious ways to find out whether your home is modular is not is by looking at the UBC sticker. All the modular homes (assembled away from their foundations) are required to have that sticker to show that the homes are built to meet and exceed the standards of UBC (Universal Building Code). So if the home has a UBC sticker, it is definitely a modular home.