The Golden State Warriors have agreed to terms to buy 12 acres of land in San Francisco's Mission Bay neighborhood to build a new arena.

The Warriors announced Tuesday that they would buy the land from salesforce.com. The team was originally hoping to build a new arena on San Francisco's waterfront but those plans faced opposition from critics concerned about traffic, environmental issues and blocked views of the Bay Bridge.

The proposed arena will hold about 18,000 seats and the Warriors say it will be privately financed on private land near the San Francisco Giants' ballpark.

Golden State is targeting the 2018-19 season to open the arena. The team first arrived in San Francisco in 1960 and played its first 11 seasons there before moving to Oakland.

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