Not a tree guru by a long shot but perhaps one of the varieties of Liquidambar styraciflua.

I tend to agree with peren.all, but without a closer pic of the stems we can’t see if the leaf arrangement is opposite or alternate.

Can the OP post a pic of a close-up of the stems?

Yep, we need close ups.

I was able to locate where I'm looking at. These trees are in and around the Veteran Hospital in Menlo Park, CA. They line their inner entrance streets with them. Sadly, I cannot take close-up pictures until I'm in that neighborhood again.

Thank goodness for Google Map streeview as I am able to snapshot some so-so picture of the various stages of the tree.

What kind of trees are these? They look beautiful around November, and/or with their color change. Could they be more beautiful in the Spring?

They look more Maple like than Sweetgum.

Yes, agree with maple, never seen sweetgums used in a landscape setting - too many gumballs! Those trees have had some pruning to expose and shape the trunk.

"never seen sweetgums used in a landscape setting"

More common than you would think :-) They are frequently planted here as both street trees and commercial parking lot trees. And as landscape specimens. They are all over the place in California. My sister's tiny townhouse garden had 13 (!!) planted, which she reduced down to only 5 in the 25 years or so she lived there.

Having said that, I don't think these are sweetgums. Enlarging the photo seems to show a lot of leaves dissimilar to that species.

One of the Acer rubrum-red maple cultivars or hybrids.

they look more like Acer rubrum to me

Not sweet gums they dont have the shape , trunks don't look right for sweet gums either

Red maple, I'd say.

I’d agree with the Acer rubrum recommendation.