Stunning newer construction contemporary at this delightful south of the boulevard hideaway. A celebrity retreat near the best lifestyle spots in Sherman Oaks- but tucked away with complete privacy, tranquility, and resort-like peace of mind. This expertly appointed home features 4 bedrooms in the main house and a one bedroom pool house, currently being used as an office. An open concept living and entertaining level accented with 10' ceilings throughout provides a sense of scale and airiness. Grand pocket doors open out onto the fully hedged and lush backyard, featuring a Chef's BBQ station with built-in sink and fridge. Saltwater swimming pool and soothing spa, plus an outdoor infrared sauna complete the picturesque backyard setting. Upstairs, the primary bedroom houses two walk-in closets, a spa-like shower and separate soaking tub along with dual vanities & an automated Toto fixture. The home's entire water system features a Life Ionizer filtration tank connected to all faucets and showers for reverse osmosis and remineralization. A beautifully finished garage interior with coated floors lined with custom designer storage and tasteful shelving provides a thoughtful touch to the space. Enjoy technology centric living with a Control4 Smart Home system equipped with eight HD security cameras, integrated sound and lighting, and an updated alarm system. Bask in the picturesque landscape of tree lined streets, making an idyllic setting for storybook scenery in this charm filled neighborhood. With a vibrant location close to coveted schools, Ventura Boulevard's best restaurants, designer boutiques, and the newly designed Equinox & Shops at Sportsmen's Lodge, blissful Sherman Oaks living at 4253 Costello Avenue becomes effortless. Home, is here...