Both luckily and unluckily, my driveway has seen better days, so while I dream of the day when I can install one of these lovely recycled permeable driveways, my more immediate concern is to not have to look at my neighbor's ugly yard. But perhaps you just want some privacy of your own because your garden or windows are in direct line of sight from neighboring homes. Either way, there are many natural solutions to consider.
From left to right:
1. This mixed planting privacy screen from This Old House uses Green Giant arborvitae.
2. Mother Earth News shows this example that can be used in a multi-family dwelling by creating a curved canopy for a vine to grow upon.
3. Red Tip Photinia, a zone 9 hedge, has gorgeous red foliage, as shown at garden-share.com.
4. Creeping Fig (Ficus Pumila) creates a lovely formal garden feel, while also giving ultimate privacy. From Urban Grace Interiors.
5. Bamboo will be my privacy screen of choice because it doesn't grow too wide (as long as the clumping variety isn't used). This example is from Bamboo Garden.
(Images: as linked above)