>>s in the last great open speights here in the city of san jose. we know this landscape provides tremendous benefits for the public, for wildlife, and how for climate resilience. >> reporter: on tuesday, the san jose city council will decide between two competing plans for the county. the one to build the sprawling complex, but the city council may vote to change the zoning to agricultural, which would effectively block the development. >> we want to preserve coyotes valley for future generations. >> reporter: attorneys say the city trying to force the owners to sell, and making it impossible for them to get fair market value for the land. >> it is about getting a fair price for their land, fair market value for the land. they're willing to sell it, but not for zero. >> reporter: a number of different tech giants have had their eye on coyote valley over the years. ibm, apple, and cisco all considered bidding headquarters there, but those plans came and went, and the pendulum has swung towards conservation, and many say that's just fine with them. >