Advice needed: Front window privacy, planting near utilities
Front yard is ready for a full makeover in Zone 10a. Southern exposure and the size is 19' x 12'. Headlights come from the left and pan the living room, so blocking them is a high priority. Native, drought tolerant, and low-ish maintenance is of course ideal.
The gas line (yellow) runs parallel to the sidewalk and towards the house about 30" right of the front walkway. The water line (white) about 30" to the right of the gas line is concerning because it is super shallow and has me rethinking what plants (ie root systems) I can put in the area.
I had initially thought a Toyon tree on the lefthand side would be nice, but am now rethinking due to the utility lines. Would love to put something ~12' tall in the sight line of that window. In addition, am also considering an arbor with some plants (bougainvillea in a wine barrel?) at the front of the walkway to add a sense of separation from the sidewalk.
Fabric is (probably) temporary to prevent weeds until planting begins. Still need to add a drainage solution near the foundation due to the negative grade.
TL;DR: What can I plant near my gas and water lines that can create privacy for our front window?