If your home design is rather plain, stick with this theme when planning your garage. If your home is distinctive, incorporate some design elements from your home into the design of your garage. Colors follow the same rules; they don't have to match exactly, but they should look good sitting next to each other.
Experts agree that the safest type of garage is one which is attached to the main house. In this scenario, there is no need to go outside at all, greatly minimizing risk. If you have the space, strongly consider attaching your new garage to your home.
At the other extreme is the homeowner who currently owns a small, sporty car. Not wanting to overspend, he builds a very small garage, thinking that even if he buys another car in the future, he'll be well accommodated. Over time, this homeowner may very well get married and have children. Suddenly, the household isn't well accommodated at all.
Due to their large sizes and somewhat awkward shapes, many people who own boats or recreational vehicles keep them in paid storage. While this is a good solution, keeping valuable possessions safe, it's not an inexpensive one.