My office complex is late 70's vintage, one of the first of the lavish Silicon Valley campuses with pool, tennis courts, gym and its own cafeteria all of which are showing their age and don't get used much. The cafeteria was necessary due to the outlying location of this facility back then, but development has eliminated nearly all of the large parcels except for one across the street where half of it is an alfalfa field and the other half is an orange grove, still individually owned. The architecture, while 70's boring, still makes use of a lot of natural wood along with molded concrete pillars that were really used a lot during that time.
The grounds are very wooded, mainly redwood trees mixed in with other evergreens and some ash trees, and there are ponds and streams with either bubblers or fountains, and plenty of benches where one can sit and relax to the sound of the rushing water. I'm sure the monthly maintenance expenses are huge. Recently we've had a couple of incidents where I presume laundry detergent was dumped into the waterways and it was looking like the Northwest Passage out there. This is a result of a ton of residential development that has sprung up in recent years nearby.
Barely 30 years after this complex was built, it is already targeted for redevelopment. It's a very extravagant use of land and whatever replaces it will surely be much higher density.