Nice house and property… he did a good job. Must be very disappointing. I saw several similar cases of this in Jamul.
Here are a few things I see on water/energy consumption:
The new vegetation on all those slopes takes a lot more water to get started then to keep going. Even Ice plant has to be watered plenty to get started. He had no choice but to put this vegetation in as a condition of his permits. The lawn since it is on a flat area was optional. If he has wierd pumping fees this can get expensive.
The attics appear to be minimally ventilated(people don’t like the looks of vents). There may be a power ventilator in the regular attic sections,if there are any. With vaulted cielings like the house has,there isn’t much air circulation above and below the cieling. It has relatively tall exterior walls and minimal eve overhang. This is all a combination for lots for heating and AC. I like the eve detail but it doesn’t knock down any sun.It is fire resistive though.