This is one part of a major make over of the half-acre property in Walnut Creek.
Before: 
One month after renovation this area is landscaped with 100% California native plants. Moss rock and stucco retaining walls replace wood for a more naturalistic setting. The back patio area now contains flower beds that provide a much needed relief the from the long narrow area behind this home.
Slopes have been planted with California Natives to support Wildlife and reduce water usage