12657 Dewey St Modern farmhouse elegance meets contemporary California living in this newly constructed Mar Vista residence. Thoughtfully designed for seamless indoor-outdoor living, the property features a four bedroom, four and half bath main residence and a one bedroom, one and a half bath ADU, offering an exceptional combination of luxury, comfort, and versatility. Bathed in natural light, the open concept interior showcases soaring ceilings, wide plank European white oak flooring, custom rift cut white oak cabinetry, and impeccable craftsmanship throughout. Expansive pocketing glass doors disappear into the walls, effortlessly connecting the living spaces to the private backyard and creating the quintessential Southern California lifestyle. At the heart of the home, the chef's kitchen features paneled Thermador appliances, a dramatic waterfall island, and striking Taj Mahal quartzite carried throughout the residence for a refined, cohesive aesthetic. Spacious living and dining areas flow seamlessly together, equally suited to relaxed everyday living and large-scale entertaining. A sculptural floating staircase leads upstairs to the luxurious primary suite, a private retreat complete with a fireplace, a generous walk in closet, and spa inspired bath featuring a soaking tub, oversized shower, and dual vanities. Additional en suite bedrooms provide privacy and comfort throughout. The fully integrated smart home system delivers modern convenience while preserving the home's warm and inviting character. Outdoors, lush landscaping, generous entertaining areas, and a built-in BBQ island create an ideal setting for al fresco dining and year-round gatherings. The ADU includes a full kitchen, one bedroom, and one and a half baths, offering remarkable flexibility as a guest house, executive office, gym, or creative studio. Ideally located in one of Mar Vista's most desirable neighborhoods, this exceptional residence brings together timeless architecture, premium natural materials, thoughtful technology, and effortless indoor outdoor living.