Website: https://www.judysin.com/post/115-tartan-way-fairfield-achieves-record-breaking-750-sf-in-just-14-daysAddress: 1646 N California Blvd, Suite 101, Walnut Creek, CA 94596Phone: 1 646-262-7952When it comes to achieving extraordinary results, 115 Tartan Way in Fairfield stands as a testament to Judy Sin’s unparalleled expertise and dedication. Designed by renowned San Francisco architect John Klopf, this boutique custom home sold for an unprecedented $750 per square foot—more than double the local average of $350–$400/SF.