23278 Aetna St Perched above the tree-lined streets of coveted Walnut Acres, this reimagined 3, 000 sq ft estate sits on an 11, 017 sq ft lot within a peaceful double cul-de-sac. Sweeping valley and mountain views are visible from nearly every room, while bold black-framed windows and lush landscaping create instant curb appeal. A steel-and-glass pivot entry opens to a soaring two-story foyer with skylight and hardwood floors. The open-concept great room flows seamlessly between living, dining, and kitchen with oversized sliding glass doors blending indoor and outdoor living, inviting the California breeze and golden light inside. The gourmet kitchen features quartz countertops, Viking appliances, custom white shaker cabinetry, and a waterfall island all overlooking the lush garden with mountain views beyond. The primary suite offers a private balcony with hillside views and a spa-caliber bath with freestanding soaking tub, rainfall shower, and floating dual vanity. Upstairs, three guest bedrooms are bright and well-appointed one with an ensuite, the other two sharing a spacious designer bathroom. Outside, a pergola anchors an outdoor lounge and dining area alongside a pool within a privacy-hedged garden. The attached 1BD/1BA ADU is a spacious, light-filled retreat with a private entrance and full kitchen ideal as a guest suite, home office, or rental.