The Mirador Aluminum Pergola has an adjustable roof, a streamlined footprint, and HOA-friendly style. 50% off at Wayfair ...

From a DIY point of view, the return on investment is high: a small pergola can be built in a weekend and requires reasonably inexpensive materials—plus basic carpentry skills and tools.

The city of Seattle plans to start restoring the Washington Street Boat Landing pergola by July, and may eventually include a service, such as a coffee shop, inside the historic structure.