If you have a growing wine collection, then you might want to build a cellar to house it. This will give you the space, security, and control that you need to ensure excellent storage. Your bottles will taste grade far into the future as long as they remain under ideal conditions.
Since all homes are different, it would be best to create a custom wine cellar design that suits the space intended for this project. This also gives you the chance to include the features you like and ignore the ones that are unimportant in your estimate. Make it as plain or as ornate as you want it to be.
Find an experienced contractor to design and build the cellar for you. This is a highly specialized room that requires technical knowledge. It would help if they are also passionate wine collectors.