Additional photos

Tree of Heaven...smells like hell!

Yikes. So I feared. Thank you, Floral and Tootsie. I've advised the manager so he can have it removed. The owner is committed to removing all invasive and almost all non-native plants.

in that so called lawn.. it almost looks like it was intentionally planted ... someone cant be selling them.. can they???

Probably not invasive where you are. No summer water.

Sunset calls Zone 23 "Thermal Belts Along the Southern California Coast". Page below says the tree is most prevalent along the coast and in the Sierra Nevada area.

https://www.cal-ipc.org/plants/profile/ailanthus-altissima-profile/

From Plant Assessment Form linked to on above page:

Although picture of spread in California is not well-documented, the plant is now in over 20 California counties

Spreads readily in places like eastern Oregon and Bisbee, Arizona, two very dry places.

Well, it is the tree on the Brooklyn Botanical Garden's t-shirt, or was nearly 20 years ago.

'A Tree Grows in Brooklyn' was about an Ailanthus, I believe.

What a waste of pages!

Not all.

You just can't warn people enough about this tree.