1. Storage - Everyone has too much stuff and chances are there is some dead space somewhere in or around your rental property. If your current tenants don't need the storage space, then someone that lives close by to your rental property definitely does. Rent out storage in either your basement, garage, or shed.
2. ZipCar - If your rental property is in a city, look into renting parking spaces to ZipCar. ZipCar is a business that offers hourly rental cars and they are eager to rent parking spaces to store their cars from landlords with relatively good locations. This could be an easy way to boost parking revenue to a top-notch corporate tenant.
3. Cell Phone Site - This might be a long shot, but with the boom in mobile devices and a never-ending push to expand coverage and services, the cell phone companies are always looking to add small sites. It is amazing how inconspicuous and small a cell site can be and incredible how much revenue it could add to your rental property. Check out the Wireless Landlord Association for more information.
