628 18th St Currently under construction. Rare opportunity to acquire a significant architectural project in Santa Monica's coveted Gillette Regent Square neighborhood. Set on an expansive 8, 951 sq ft lot, this pre-completion offering presents the chance to take ownership of a residence already well underway in one of the Westside's most sought-after locations. Designed by renowned Santa Monica-based architectural firm Minarc, the property is being offered in its current unfinished state and features a structural steel frame, light-gauge steel interior partitions, and installed high-end window and door packages. Current approved plans call for a 4-bedroom, 3-bath residence of approximately 4, 000 square feet, with a generous rear yard area that may accommodate additional outdoor amenities, subject to buyer verification and city approval. Buyers are advised to independently verify all plans, permits, specifications, and remaining scope of work. Further enhancing the opportunity, the sale includes an inventory of selected materials and components acquired for the project, including certain stone slabs, lighting fixtures, plumbing fixtures and appliances, together with a paid-for Solar Forward solar panel system. With substantial progress already completed, the property may appeal to buyers seeking the opportunity to bring their own vision and design preferences to the final stages of construction. Buyers may elect to explore working with the existing architect and construction team, subject to availability and separate agreement, or engage professionals of their choosing. Seller makes no representation regarding completion costs, timelines, or future approvals. Located just moments from Montana Avenue, premier dining, shopping, parks, and Santa Monica's iconic coastline, Gillette Regent Square remains one of the city's most desirable residential neighborhoods, known for its tree-lined streets, larger lot sizes, and architectural character. Opportunities to acquire a project of this scale and location are increasingly rare.