A protected oak cost me two years, then saved me an $11k service upgrade
I started this in 2022 by walking into the planning counter with a hand drawing of a cottage over my detached garage. The woman at the counter looked at it for maybe eight seconds and said the garage was two feet inside the rear setback, which the city had tolerated since 1948 but wouldn't tolerate on a new second story. That was the whole meeting.
So I sat on it. City rewrote its ADU chapter the following year, detached units allowed on basically every lot in my zone, and I came back with a real set of drawings. Then my neighbor filed a letter. Not about the unit, about shade on her vegetable beds. Planning didn't care about her beds, but her letter mentioned the oak on the property line, and that woke up the arborist review nobody had flagged. Protected tree, critical root zone, no footings inside it.
My designer moved the footprint four feet toward the house, lost a closet and a window seat, and the thing cleared review in six weeks. Total cost of the delay was two full years and about $9k in redrawn plans.
The part I still think about is that the tree saved me money. Sliding toward the house shortened the sewer run by 30 feet and let me tie into the existing panel instead of a new service. My electrician told me the new service would've been $11k on its own. My neighbor and I are fine now. She gets tomatoes, I got a cheaper trench.