luxury houses for sale California, United States (page 142)

Newly completed in 2022, this sprawling Conejo Oaks estate is stunningly sophisticated and has every amenity today’s discerning buyer desires. The front door sets the tone as an oversized frosted glass swivel allowing light inside but privacy from those outside. Elegance and grandeur exude the minute you enter and experience the soaring 20-foot tongue and groove ceiling in the great room. Flooded with light and very open, the first floor also showcases the kitchen which is a culinary masterpiece including Wolf appliances, Carrara marble countertops, a luxurious backsplash and ample island seating for casual dining. A spacious walk-in pantry nearby offers ample storage, even accommodating a second refrigerator. Just around the corner is a formal dining room surrounded by large windows out to the picturesque front yard. On the other side of the kitchen, you can step through the large, commercial grade pocket doors into your personal sanctuary, a daily escape to a perpetual vacation. The covered lanai invites leisurely lounging, while the heated pebble sheen pool and jacuzzi promise tranquil relaxation. The spacious half-acre flat lot is a canvas for your dreams, perfect for recreation, cultivation, and exploration. Upon re-entering the residence, on this first level you'll also find a powder room and two bedrooms, each with its ensuite bathroom. Further exploration reveals two versatile rooms that can be used as offices, media room, home gym or game room. The separate, temperature controlled wine cellar is like a piece of art itself. At the top of the generous wood plank staircase, you'll discover a spacious primary suite in its private wing, with a well-lit catwalk offering gorgeous pool, mountain and tree top views. Additionally upstairs are two more bedrooms with ensuite bathrooms plus a large bonus room ready for your movie watching, game playing, or something up to your imagination. The spacious laundry room completes the top floor. Additional amenities include the oversized three-car garage, zoned AC, Google nest doorbells, Bluetooth garage doors, outdoor cameras, wired for sound and security and a concrete pad the size of a 1/2 court in front of home. This home is conveniently located near top CVUSD schools, scenic trails, fine dining, and upscale shopping. Equestrian enthusiasts will also delight in the proximity to the Conejo Creek Equestrian Park, horse trails, and nearby boarding facilities for all of your equestrian needs.

Welcome to 1607 N Beverly Dr, an elegant contemporary Mediterranean residence boasting a gracious oversized lot with verdant yard spaces and gardens. Although ideally situated just minutes from Beverly Hills' world-class shopping and dining, the property is a peaceful escape. Upon entering the home you can't help but appreciate the magnificent living spaces with high ceilings. The open floor plan with impressive scale seamlessly connects the formal living room, dining room, ample chef's kitchen, and grand family room. There are four spacious bedrooms, all with ensuite bathrooms, including a primary bedroom retreat with dual walk-in closets and spa-like bathroom. Thoughtfully designed to maximize the indoor-outdoor lifestyle, nearly every room features beautiful French doors which open to a charming yard space or balcony. Additional amenities rounding out this lovely home include dedicated laundry room, walk-in pantry, and a direct access two-car garage.

SOUTH OF PCH, TWO UNIT INCOME POTENTIAL COASTAL PROPERTY! This unique property offers a 2 bedroom, 2 bath front cottage house, plus a 2 story 3 bedroom, 2 bath rental unit/guest house in the rear. Located in the heart of Corona Del Mar, and only 2 blocks from CdM State Beach! The vintage cottage house exudes charm and character, serving as the perfect canvas for your imagination. With its charming appeal, it offers a cozy living space that can be renovated to reflect your personal style and preferences. The cottage has a sense of nostalgia, and with a touch of creativity, it can be transformed into a charming haven that pays homage to its historical roots. In back of the cottage, the legally permitted 3-bedroom apartment over the garage provides additional space and flexibility. This separate living area offers a private retreat for guests or the opportunity to generate rental income. Whether you choose to utilize it for extended family members, as a home office, or as an income-generating asset, this apartment offers versatility and convenience. The property's location in the Flower Streets of Corona Del Mar is highly desirable, known for its tree-lined streets, beautiful homes, and close proximity to the vibrant coastal lifestyle. Enjoy leisurely strolls to nearby beaches, explore the charming boutiques and restaurants along Pacific Coast Highway, or indulge in the plethora of outdoor activities available in this coastal paradise. With this rare opportunity to build your dream home, you have the freedom to create a vision that is uniquely yours. From modern architectural designs to classic coastal aesthetics, the choice is yours to shape a residence that perfectly suits your style and preferences. Let your imagination run wild as you envision a harmonious blend of indoor and outdoor living spaces, high-end finishes, and the ultimate in luxury and comfort. Corona Del Mar offers a wealth of amenities and attractions that cater to a refined and sophisticated lifestyle. Immerse yourself in the coastal beauty, relish in the vibrant community, and take advantage of the abundant recreational opportunities. From beach activities to upscale shopping and dining experiences, Corona Del Mar has something for everyone!

Created from the 1800s settlement of Napa's founder, Nathan Coombs, the Meteor Vineyard Estate is a rare prestigious offering: an architecturally significant residence and an esteemed, highly profitable ultra-premium vineyard that has been called the Grand Cru of the Coombsville region. Gated and consummately serene, this 34 +/- acre oasis is anchored by a 13,250 +/- sq ft residential compound designed by Cutler Anderson; an impressive landmark comprising a four-bedroom main home, a three-bedroom second dwelling, and studio. The enveloping 22.58 acres of Cabernet Sauvignon and Petit Verdot grape vines serve as the select source of numerous single-vineyard designate wines and of the estate's own distinguished Meteor brand. Standing stalwart at the property's highest point is an iconic valley oak, and embracing it all are wine country's bucolic hills. This is truly a once-in-a-lifetime opportunity for a connoisseur of architecture, winemaking, and the geography and flora of Napa Valley.

Prepare to be amazed with this Malibu designer-done oceanfront home. Contemporary and spacious, with jaw-dropping unparalleled views, from the Queen's Necklace to Catalina Island to Point Dume. This chic 4-bedroom, 4 bathroom modern is located only minutes from the Westside, with world class dining and shopping. Recently renovated in 2020 with meticulous attention to class and refinement. This contemporary beach home features three beautifully appointed bedrooms and three baths in the main house. Upon entering your new home, you are immediately greeted by the sights and sounds of the Pacific Ocean. Fleetwood sliders cascade open to bring the outside in, which is enjoyed throughout the open concept home. Chef's kitchen features Viking appliances and quartz countertops. All 3 bedrooms are located upstairs. The spacious Primary Suite features breathtaking views of the ocean and with a private deck. The upper-level features multiple skylights, providing a bright & natural light, enhancing the coastal living experience. The massive downstairs ocean front deck creates an outdoor living room that seems to connect seamlessly to the blue Pacific Ocean. Truly breathtaking! The climate-controlled 4th bedroom and full bath (no permits) is also on this level. This beautiful home is located adjacent to a sandy beach. Parking for 3 cars includes a one car garage with a bonus room, which could be converted back to a 2-car garage, giving a total of 4 off-street parking spaces. The current and past owners purchased this property with the unpermitted 4th bed and bath below. There are other code enforcement violations with the City of Malibu. Current owners spent a great deal of time and money with architectural plans and permits that address all issues. The plans are now approved and the permits are ready to issue. This is a turn-key Oceanfront Home, ready to be enjoyed immediately.

Desirable Creek Bridge neighborhood home with 3 Bed/2 bathrooms upstairs and half bath downstairs. Bright and open floor plan with high ceilings in the living/dining room. Large kitchen with granite countertops and breakfast bar. Surrounded by parks and just a short drive to shopping and restaurants makes this a perfect location for your new home.

Settling for less isn’t an option at this absolutely stunning villa on the sand at The Strand at Headlands in Dana Point. Unobstructed front-row views span the azure Pacific Ocean, crashing waves, southern Orange County’s golden coastline, Catalina Island and the imposing headlands of historic Dana Point. Every level of the custom estate opens to the ocean, welcoming fresh sea breezes, natural light, and the hypnotic sounds of the surf into nearly every room. Extending approximately 10,576 square feet, the bespoke oceanfront mansion redefines elegance and sophistication with uncompromising craftsmanship and unyielding attention to detail. Heated limestone floors throughout add to the luxurious ambiance of the home. An appropriately grand entrance leads to a floating circular staircase that is crowned by a glass ceiling on the third level and provides a dramatic focal point on every floor. An elevator also serves each level of the home, which hosts five ensuite bedrooms and 7 full and 2 half baths. The formal foyer leads to a chic parlor, a formal dining room, and a massive great room with fireplace. Disappearing glass pocket doors open the great room to a large loggia that showcases a floating cantilevered spa with acrylic bottom that overlooks the beach. An island kitchen features a nook with built-in seating, and a separate catering kitchen and service bar. Take the stairs or elevator up to the top floor, where bedroom suites include a five-star owners retreat with sitting area, fireplace, ocean-view balcony, an oversized walk-in closet with island, and an exquisite bath. It’s all about fun and entertainment on the lowest floor, where a game room, billiards room, glass-enclosed wine cellar, service kitchen, fifth bedroom and a gym are located. This floor opens via a disappearing glass wall to a loggia with massive sunken wet bar. Beyond the bar awaits a resort pool and spa, a built-in island with grill, a seating area with open-air fireplace, extensive stone decking and direct beach access. Created by Homer Oatman of Oatman Architects, the estate was built by Mike Reeves of Corbin Reeves Construction and reveals exceptional interior design by Ohara Davies-Gaetano. Sequestered behind guarded gates, The Strand at Headlands is one of the most coveted oceanfront communities in California and offers more than one mile of coastline, 70 acres of parks, scenic trails, a beach club and easy access to resorts, shops, restaurants and outstanding schools.

Situated on 41± acres of stunning hillside, this architectural gem is a study in unparalleled beauty. A striking harmony of contemporary design and nature, this property boasts exquisite views, serenity, and privacy, setting the bar for luxury and sophistication in the Napa Valley. The home’s design was inspired by the skillfully renovated Meiji-era homes in Japan’s art islands, where elements such as “shou sugi ban” or charred cedar cladding, combined with large openings to the outdoors, effectively contemporize the dwellings without sacrificing their place in the environment. This extensive renovation was masterfully executed in 2020 by Juancarlos Fernandez of Signum Architecture. A uniform language of cedar, steel and glass across various structures creates a seamless flow of air and light throughout this 7 bedroom, 8 bath property that includes a gracious main house, studio, large guest house, and guest studio. Exuding sophistication and style, European porcelain and maple wood flooring combine with vast wall spaces and distinctive custom-crafted millwork to meld gracefully with the home’s signature design. Walls of glass in the main residence flood the home with natural light and open onto covered decks for the quintessential indoor/outdoor living experience. The family, living, dining and great rooms are deftly positioned on the main floor for communal flow and comfort. The chef’s kitchen is an open concept featuring premium appliances including a Wolf 6-burner range, 2 concealed Miele dishwashers, and Sub Zero refrigerator/freezer and under-counter freezer drawers. The upstairs level has 3 expansive, light-filled bedroom suites with panoramic views of the rugged hills, vineyard-speckled valleys, and Lake Hennessey. A perfect foil to the sun-kissed living quarters is the home theater featuring ample seating, Sony 4K projector and Sonance surround sound for the ultimate movie experience. The ground level features two additional guest bedrooms with a shared bathroom, kitchenette and bar, wine cellar, and a generous living/dining area that opens to the pool terrace. There is also a pool bathroom for convenience. Sitting beside the main house, the studio highlights an expansive reading room/study with commanding lake and valley views, opening out onto a patio and lawn. A large gym and massage/meditation room provide an inspired environment for wellness, while a 3 car garage completes the unit. Universal indoor/outdoor features include energy-efficient Nest thermostats, automatic electronic shades, Lutron lighting and Sonos sound systems, all conveniently controlled by a smart phone. There is luxury in every detail, from custom lighting to radiant floor heating throughout the residence. A short walk from the main house, the guest house offers two bedroom suites, an airy living/dining room, and kitchen bathed sumptuously in light, with verdant hillside and lake views. Further, an adjacent guest studio comprises an ample storage closet and a 2 car garage. The property also boasts a full-size tennis court and a resort-style heated salt-water swimming pool with automatic cover. This paradise offers meandering walking trails, a fruit orchard, mature olive trees, a rock garden, and raised vegetable beds. Premium faux turf promises year-round sustainable and environmentally conscious greenery. The exceptional design, superb attention to detail and impeccable finishes of this home will impress even the most discerning buyer. This estate is a rare achievement of the sublime and the ideal property for buyers seeking the quintessential Napa Valley lifestyle.

Introducing 1940 Bel Air Road, an exquisite estate nestled in one of the most prestigious neighborhoods in the world. Boasting a sprawling 17,000 square feet of luxury living space, this extraordinary property offers a truly exceptional lifestyle. Set against the picturesque backdrop of the Stone Canyon Reservoir, this home presents captivating views and unparalleled tranquility. Step through the grand entrance and immerse yourself in a world of opulence. Every detail has been meticulously crafted, showcasing the finest quality and craftsmanship throughout. From the soaring ceilings to the carefully curated finishes, this residence exudes elegance and sophistication at every turn. The expansive floor plan provides an abundance of space for both entertaining and everyday living. Discover multiple living areas, including a magnificent formal living room, a cozy family room, and a stately study, each offering its own unique ambiance. The gourmet kitchen is a chef's dream, featuring top-of-the-line appliances, custom cabinetry, and a generous island, all designed to inspire culinary excellence. Indulge in the ultimate relaxation within the private primary suite, which encompasses a serene bedroom, a luxurious spa-like bathroom, and a spacious walk-in closet. Additional ensuite bedrooms offer comfort and privacy for family and guests alike.As you venture outside, an oasis awaits. Breathtaking views of the Stone Canyon Reservoir create a sense of serenity and provide an idyllic backdrop for outdoor gatherings. Immerse yourself in the lush, landscaped grounds, featuring meticulously manicured gardens, a sparkling pool, and ample patio space for al fresco dining and entertaining. This prestigious Bel Air estate offers not only an exceptional living experience but also an unparalleled location. Situated in one of the most coveted neighborhoods in Los Angeles, residents enjoy the convenience of nearby amenities, world-class shopping on Rodeo Drive, and fine dining establishments.

South Venice pool home ‹” this updated home is beautiful and ready to go. The screened-in front porch invites you into this light and bright home. Fabulous color scheme throughout the home and newer flooring in many rooms. Relax on the screened rear porch or in your backyard pool. Solar heated as needed. Great family room with tiled flooring, dining room opens to the kitchen and access through the sliding glass doors to the lanai. Split bedroom plan, master bedroom has sliders to the lanai, bath with cool mirror and new vanity plus tub and shower. The second bath has also been redone and has a shower only. Enjoy working in the kitchen with plenty of countertops and cabinets, plus a small breakfast bar area. Gorgeous tiled backsplash to accent the color scheme. Want those stainless steel appliances? Frigidaire oven and microwave plus brand-new dishwasher. Samsung refrigerator and even brand-new disposal. Light fixtures and ceiling fans are all newer, and the home was repainted in 2020, along with a new septic tank in 2019. Transferable termite bond ready for you. Plenty of storage in the shed that even has electric service to it. Fabulous location within minutes of beaches (1.6 miles to Manasota Beach, 3.2 miles to Caspersen Beach, which is known as the shark tooth capital, 6.1 miles to Venice Beach and 7.7 miles to Englewood Beach) and even the voluntary membership into the South Venice Civic Association for $60 a year, which gives you access to beaches, ramps, launch for kayaks, the ferry that goes across, etc. Central location to many beaches, an immaculate and updated home means you need to hurry!

Lying on the westerly side of Harbor Island, Newport Harbor’s most revered and sought-after private island locale, this stately period home has been lovingly kept for nearly one hundred years. Held by generations of one family for nearly as long, this is the proverbial property ‘everyone has been waiting for’. Words cannot describe the relaxed feeling one experiences sitting here on the bayside terrace and watching sailboats glide across the harbor from this most scenic location. Towering eucalyptus trees frame the reserved, colonial-style residence that is an understated monument to its era. The home fronts on a large brick terrace that adjoins an expansive green lawn that spans two oversized lots and runs to the water’s edge. A private inner courtyard, and expansive mature gardens, lend to the coastal ambiance found here. The original house, built circa 1937, has been preserved and enjoyed, while its authenticity protected. There is also a private boat dock for several yachts up to one hundred feet in length that completes the property. With the filtered afternoon sun trickling in from above, and the massive trees swaying in the gentle ocean breezes, the setting is truly enchanting. Of the few original estate sized parcels on the Newport Harbor, only a handful remain today. This offering is comprised of two, independent lots (numbers 20 and 21); each fifty feet in width. Their combined one hundred feet of frontage, found on the most desirable island in Newport Harbor, represents the last opportunity of its kind. Surrounded by Southern California’s most impressive and expensive waterside residences, this property can be restored, expanded, or completely reimagined into something that will stand for the next one hundred years. In real estate parlance, ‘irreplaceable’ is a word that is overused. However, this single word best describes this unexpected and fortuitous opportunity.

THIS HOME HAS MANY UPGRADED FEATURES T***HOME FEATURES 4 BED+LOFT+3 BATH+3 CAR GARAGE W/3,325 SF OF LIVING SPACE WHICH FEELS MUCH BIGGER***

Serene, sophisticated, and enviably set in the prestigious and guard gated community of Crystal Cove, this newer custom-build sits proudly perched on a coveted hilltop lot, commanding sweeping ocean and mountain views. Inside, impeccable craftsmanship and high-end finishes blend with state-of-the-art technology to offer luxurious modern living. With six bedrooms, eight baths, and multiple entertainment areas across its generous layout, you can comfortably host large-scale gatherings without compromising privacy. From the elegant grand foyer, graceful archways usher you into the open living room and dining area, surrounded by French doors and glass sliders that inspire idyllic indoor/outdoor living. Top-of-the-line stainless steel appliances, designer cabinetry, and an oversize waterfall island define the exceptional chef's kitchen. Steps away, the family room has a gorgeous linear fireplace and a convenient wet bar. Escape to your own slice of paradise in the lush backyard where you can take a rejuvenating dip in the pool and spa surrounded by breathtaking panoramas. Host alfresco celebrations around the pergola's Hibachi grill, pizza oven, and fire pit. Additionally, this incredible haven is available for short-term lease.

This opulent mansion stands as a veritable icon in Lower South Hillsborough, meticulously crafted as a homage to the White House by the esteemed architect Julia Morgan. Spanning over 24,000 square feet across four levels, it has been thoughtfully rejuvenated with the finest fixtures and state-of-the-art appliances. With its Neoclassical Georgian architecture, the home greets you with majestic columns and an impeccably laid driveway, the facade exuding grandeur. Inside, an abundance of windows and soaring ceilings invite the warmth of California's sun, bathing each room in natural light. Timeless accents such as intricate crown molding, resplendent wood floors, and dazzling chandeliers seamlessly marry with contemporary elements and sleek lines, epitomizing sophistication. Ascend to the primary bedroom, where a regal fireplace, a tranquil sitting area, and an opulent ensuite bathroom await, adorned with dual sinks, a sumptuous soaking tub, and a separate shower. A sanctuary for productivity, the home office boasts two-toned wood paneling and an imposing desk. Nestled upon nearly three acres of verdant grounds, the Bay Area's 'Western White House' is a testament to refined living and illustrious entertaining.

Your search for a beautifully polished, traditional home is now over. Surrounded by notable architectural and historic homes on one of the most desirable streets in Los Feliz, this 3 bed, 3 and 1/2 bath house can now be yours. Set high above the street, on almost a third of an acre, enter to find designer touches in every room. The spacious living room offers open truss ceilings, expansive city skyline views, and an inviting fireplace. The elegant dining room, with striking wallpaper and more views, makes for fantastic dinner parties. The gourmet kitchen is replete with marble countertops, luxury appliances and ample storage. Relax in the rose-hued sun room which opens out to a picturesque and private backyard. Work from home in a lovely, warm, wood-paneled office space with its own bathroom. All bedrooms are en suite and offer an abundance of natural light. Direct access from the garage includes a temperature-controlled wine cellar. A sophisticated home in a highly coveted location.

Designed by renowned Palo Alto architect Steve Borlik, this stylish home is situated at the end of a premier cul-de-sac just steps from downtown Los Altos and acclaimed Santa Rita Elementary. Perfectly turn-key from top to bottom, this single-level home offers an incredible great room, spacious formal dining room, inviting family room, private bedroom wing, and a large, well-designed backyard. Enjoy high-end construction and materials, custom built-ins, expansive picture windows, a built-in sound system, and solar powered energy. Having both a formal dining room and an open-concept kitchen and family room provides the perfect venue for entertaining and relaxing with family. And in the backyard, a gorgeous travertine patio surrounds the resort-style pool and spa, a fire pit patio sits within an area of level lawn, and a garden has two large raised beds and easy access to a storage shed or potential ADU site. Move-in ready, with a highly coveted location!

Curated with timeless design elements and unsurpassed grandeur, Gunbarrel Lodge is a 15-acre alpine estate that delivers one of the most spectacular settings in all of Lake Tahoe. A private gated entrance and scenic driveway lead to the hillside perch for this exclusive compound that begins under a grand Porte-cochere entry. The main residence and separate guest house combine for nearly 17,000sf of living with 17 bedrooms and 18 baths, mostly ensuite, offering a rare assemblage of ski-in/ski-out locale, overwhelming lake views and exceptional design. A beckoning of every modern convenience and comfort, the sheer scale and list of attributes and amenities are in a class by itself. Rustically elegant, the builder artfully melded timbers and rugged reclaimed materials with a wealth of stonework and stylish decor. while providing a seamless transition to the outdoors. An unprecedented opportunity for the most discerning of buyers to own a true legacy property.

Tennis court included. North Arcadia. Santa Anita Oak.

Welcome to your fabulous newly remodeled Torrance home, nestled on a quiet street in the award-winning Torrance school district. With beautiful curb appeal, you’ll feel welcomed as you pass by water saving landscaping and enter through the charming Dutch door into an inviting bright and open floor plan. A generous living area anchored by a fireplace provides the perfect space to unwind or entertain. Inhaus waterproof flooring, recessed lighting, custom sky lights and beamed ceilings are a few details that make this home special. The well-appointed kitchen features new soft-close cabinetry, Quartz countertops, stainless steel appliances, oversized sink, subway tile backsplash, pot filler and gold-tone hardware. The formal dining area has room for a large table and remains open to the living area. One step down is the casual family room with vaulted ceilings and dual-paned sliding doors that open to a huge, private backyard with a covered seating area. The patio area is large enough for a firepit, a dining table, grill and an outdoor television. In the evenings the soft overhead lighting creates a cozy atmosphere to enjoy the sunsets and entertain al fresco. A lush, grassy area leads to the free-standing luxury shed which is wired for home office use or workout area. With steel French doors, Mohawk waterproof LVT flooring and recessed interior/ exterior lighting, this flex space has many possibilities. Back inside, the primary suite has large windows, recessed lights and a newly remodeled bathroom with rich cabinetry, white stone-clad shower and designer tile backsplash and shower detail. Two additional bedrooms feature plenty of windows for natural light and nice molding details. These rooms share a sharp bathroom with a shower/tub combo, luxury stone and tile and a seamless white countertop. The insulated, finished garage has Behr epoxy flooring, recessed lighting, smart storage, utility sink and washer dryer area. The finishes and nice cross breeze make it an attractive bonus living or workspace, a place for guests or a hang out space for kids. A few more features in this home are keyless door entry, smart LED exterior lighting, automatic sprinkler system and Polk outdoor speaker system. This 2021 remodeled home is ideally located in the South Bay; close to the shops and restaurants of Del Amo, a short drive to the beach and an easy access to the freeways.

321 El Granada Blvd, El Granada, Ca 94018 5 Bedrooms/4 Bathrooms, 4135 Sqft, 7150 Sqft Lot Stunning ocean views from almost every room of this spacious El Granada Highlands home. Main home four bedroom/three bathroom with open floor plan, European Oak hardwood floors and Italian tile throughout. High vaulted ceilings and exposed beams for the natural coastal appeal and lots of natural sunlight. the modern kitchen boasts an expansive island, quartz countertops, stainless steel appliances including a Viking refrigerator, five-burner gas Thermador cooktop, GE microwave and oven, Bosch dishwasher, Miele espresso machine and ample soft close cabinetry. Main floor has two bedrooms/one bathroom, upper level primary suite with a private balcony, oversized walk-in closet, spa like bathroom with double sinks and rain shower. lower level suite has access to back patio, hot tub and backyard. Attached one bedroom/one bathroom secondary unit with separate entry. Other features include Trex decking, solar panels and battery system, water filtration system, mostly flat lot and attached detached garage with lots of storage space. Located off the Scenic Highway 1 with easy access to Surfer’s Beach, the Coastal Trail, Pillar Point Harbor and Historic Downtown Half Moon Bay and a short commute to the Peninsula, San Francisco, Silicon Valley and SFO.