Kevin Costner built baseball diamond on polo field for unbuilt estate

Hollywood actor Kevin Costner once envisioned transforming a coastal property in Carpinteria, California, into a sprawling private estate, but the ambitious development never materialised. Instead, one unusual detail from his preparations stands out. Costner converted an existing polo field into a baseball diamond while making changes to the land. The actor purchased the property in 2006 for a reported $28.5 million, drawn to its oceanfront setting and expansive views. The site included a modest, older house, but Costner had plans for a much larger residence, a guesthouse and a swimming pool. Years later, the property attracted attention again when it was listed for tens of millions of dollars and became part of the financial story behind his Western film project, Horizon: An American Saga.Kevin Costner’s $28.5 million coastal propertyCostner purchased the land in Carpinteria, near Santa Barbara, California, in 2006.