The new year has signaled the end for Diablo Golf Course, a longtime nine-hole course bordering Summerset I, a popular retirement community here.
The city announced the pending closure on social media, and residents came out to a recent council meeting to ask about what would become of the site. The nine-hole course, which closed on Sunday, was part of the larger Brentwood Golf Club. That 18-hole course will remain open at 100 Summerset Drive.
— Judith Prieve, East Bay nine-hole golf course is no longer, Mercury News.