Refine Search
Sort by
$2,100,000

4 Beds

3 Baths

PTP2402398 MLS

Welcome to Del Sur! Your highly upgraded home awaits you. Includes travertine flooring, plantation shutters, arched doorways, 2 grand fireplaces, gourmet kitchen with granite counter tops, full bed down, 2 level AC, and OWNED SOLAR! Enjoy the yard with fruit trees and drip irrigation. This home is perfect for family gatherings and entertaining with a surround sound system. Del Sur awaits you with top rated schools, pools, playgrounds, shopping centers and restaurants all within walking distance. See sup Walk into this home feeling welcomed by a Del Sur room with a fireplace, a perfect space for connecting with your guests. This extra large spacious kitchen has plenty of preparing and serving space on the grand kitchen island. Kitchen has a double oven, five gas burner stove, and a built-in refrigerator. Kitchen opens to a grand fireplace in the family room with an additional kitchen breakfast nook. Courtyard has a tranquil fountain. Clean back with plenty of room for gardening. Master bedroom with large walk in closet and soaking tub. Spacious secondary bedrooms with Jack and Jill bathroom and their own sinks. Upstairs loft opens to a large balcony. Bedroom downstairs for guests with full bath. Extra large Garage has plenty of storage. 24 Solar Panels and Fully Paid Off. Full house surround Audio System. Close to shopping area including Target, Sprouts, Ralph's, Jimbos, Restaurants and easy access to plenty of Fast Food chains within 1 mile range

15636 Via Montecristo, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$3,249,000

5 Beds

6 Baths

240009429 MLS

Savenna BLDG.

Savenna at Santa Fe Valley’s finest estate home full of timeless charm and modern features! This stunning single-level home boasts 5 bedrooms, 5.5 bathrooms, an office, a billiard room, and a 4-car customized garage. This premier corner lot at 0.7 acres was recognized by San Diego Home and Garden Magazine for its pool and landscape design making it a true oasis filled with lush mature landscaping. The fully fenced terrestrial paradise features waterfalls, a gazebo for relaxing, tranquil gardens, a fire pit, and a covered outdoor kitchen. The marquee of this home is the kitchen that opens to your entertainment area, making it the perfect space for hosting guests and family. The kitchen features newer solid Cherry wood cabinets, adding to the timeless elegance of this property. No home is complete without smart amenities including a fully owned 72-panel solar system, Tesla power wall, Hydrawise irrigation system, audiophile-grade sound throughout, video surveillance system, newer wifi-controlled HVAC system, and more! This is the most prestigious estate home for anyone seeking a peaceful and serene lifestyle.

17208 Holly Leaf Ct, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$3,599,000

5 Beds

6 Baths

240009445SD MLS

Welcome to 17003 San Antonio Rose Court, nestled in the picturesque Crosby neighborhood of Rancho Santa Fe. This stunning property offers 4 bedrooms, 4.5 baths, and a fully detached casita featuring a living room, kitchenette, and a full bedroom and bath. Step inside this exquisite home and bask in the abundant natural light that fills the living spaces. One of the standout features is the oversized interior courtyard, creating a charming focal point. Experience the convenience of single-story living, with two guest bedrooms downstairs alongside the primary suite. Upstairs, a loft and additional bedroom provide versatility for a private office or guest accommodations. The chef-worthy kitchen is a culinary haven, boasting high-end appliances, granite countertops, and ample storage space. Whether you're hosting a gathering or preparing a quiet meal, this kitchen will impress even the most discerning buyers. Retreat to the luxurious primary suite for ultimate relaxation, featuring a spa-like ensuite bathroom and a spacious walk-in closet. Outside, you'll find your own private oasis. The expansive backyard is perfect for entertaining, with a covered patio, lush landscaping, and plenty of space for outdoor enjoyment. And there's more! This home also includes an estimated 600+ sqft guest casita, providing additional living space for visitors. Complete with a cozy living area, bedroom with ensuite bath, and convenient kitchenette, your guests will feel right at home. Don't miss out on the opportunity to make this dream home yours. Schedule your private tour today!

17003 San Antonio Rose Ct, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$3,249,000

5 Beds

6 Baths

240009429SD MLS

Savenna at Santa Fe Valley’s finest estate home full of timeless charm and modern features! This stunning single-level home boasts 5 bedrooms, 5.5 bathrooms, an office, a billiard room, and a 4-car customized garage. This premier corner lot at 0.7 acres was recognized by San Diego Home and Garden Magazine for its pool and landscape design making it a true oasis filled with lush mature landscaping. The fully fenced terrestrial paradise features waterfalls, a gazebo for relaxing, tranquil gardens, a fire pit, and a covered outdoor kitchen. The marquee of this home is the kitchen that opens to your entertainment area, making it the perfect space for hosting guests and family. The kitchen features newer solid Cherry wood cabinets, adding to the timeless elegance of this property. No home is complete without smart amenities including a fully owned 72-panel solar system, Tesla power wall, Hydrawise irrigation system, audiophile-grade sound throughout, video surveillance system, newer wifi-controlled HVAC system, and more! This is the most prestigious estate home for anyone seeking a peaceful and serene lifestyle.

17208 Holly Leaf Ct, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$2,995,000

5 Beds

5 Baths

NDP2403513 MLS

Enjoy resort style living in this one-of-a-kind property in the highly sought after Santa Monica community. Every day will feel like a vacation when you step into your immaculately remodeled backyard with top-of-the-line amenities including an absolutely stunning pool and spa, fire pit, fully equipped outdoor kitchen with built-in BBQ, brand new low maintenance landscaping, and La Cantina door that gives you a view that will take your breath away. This beautiful 5 bedroom (plus office) home is an entertainer's dream. The sellers have meticulously maintained this property and made close to $600,000 in upgrades and improvements throughout the interior and exterior of the home, including the full backyard remodel and pool (completed in 2023!), fully paid solar and pool heating solar system, upstairs master bedroom picture window with gorgeous sunrise views, $30K in lighting upgrades, and remodels of various rooms including the gourmet kitchen, office and bathrooms (more details available on request). The open and flowing floor plan and high ceilings welcome you into a world of elegance and spaciousness. The master suite provides complete serenity with a picture window framing incredible views of the poolside paradise. Additional features include an outdoor movie theater with surround sound, one bedroom downstairs for your guests, a wine cellar, a home gym inside the garage, two fireplaces, new exterior paint, and so much more. The garage is equipped with a 220v plug for electric vehicles which is connected to the fully paid solar. This is a completely turnkey property with no

14633 Rio Rancho, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$2,399,000

5 Beds

3 Baths

240009220 MLS

Welcome to your dream oasis at 16331 Pinto Ridge! Nestled in a private cul-de-sac, this luxurious home boasts one of the largest lots in the development, spanning over 10,000 sq. ft. Prepare to be captivated by paid-for solar system, promising both sustainability and savings. Step into an enchanting landscape, professionally manicured to perfection, complete with an awe-inspiring sustainable garden, serene patio cover, tranquil fountain, and mesmerizing lighting. The outdoor space beckons you to unwind and entertain in style. Positioned to perfection, this residence enjoys a rare and invigorating breeze that flows seamlessly throughout the house, creating an ambiance of serenity and comfort. Within arm's reach, discover amenities galore – from esteemed schools and parks to the Boys and Girls Club, all just a leisurely stroll away. The main floor welcomes you with a formal living room, bathed in natural light and adorned with insulated film to preserve the home's beauty. Revel in the seamless flow of the entryway, kitchen, hallway, and laundry room, all meticulously designed for modern living. Ascend the staircase to discover a haven of tranquility on the upper level, featuring four spacious bedrooms and a versatile loft space. Indulge in the lavish comforts of a remodeled master bathroom, thoughtfully appointed closets, and epoxied garage floors – a testament to the home's unparalleled quality and attention to detail. Embrace a life of luxury and convenience at 16331 Pinto Ridge.

16331 Pinto Ridge Ct, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$2,399,000

5 Beds

3 Baths

240009220SD MLS

Welcome to your dream oasis at 16331 Pinto Ridge! Nestled in a private cul-de-sac, this luxurious home boasts one of the largest lots in the development, spanning over 10,000 sq. ft. Prepare to be captivated by paid-for solar system, promising both sustainability and savings. Step into an enchanting landscape, professionally manicured to perfection, complete with an awe-inspiring sustainable garden, serene patio cover, tranquil fountain, and mesmerizing lighting. The outdoor space beckons you to unwind and entertain in style. Positioned to perfection, this residence enjoys a rare and invigorating breeze that flows seamlessly throughout the house, creating an ambiance of serenity and comfort. Within arm's reach, discover amenities galore – from esteemed schools and parks to the Boys and Girls Club, all just a leisurely stroll away. The main floor welcomes you with a formal living room, bathed in natural light and adorned with insulated film to preserve the home's beauty. Revel in the seamless flow of the entryway, kitchen, hallway, and laundry room, all meticulously designed for modern living. Ascend the staircase to discover a haven of tranquility on the upper level, featuring four spacious bedrooms and a versatile loft space. Indulge in the lavish comforts of a remodeled master bathroom, thoughtfully appointed closets, and epoxied garage floors – a testament to the home's unparalleled quality and attention to detail. Embrace a life of luxury and convenience at 16331 Pinto Ridge.

16331 Pinto Ridge Ct, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$1,865,000

3 Beds

3 Baths

240009153 MLS

N/A BLDG.

Experience the epitome of everyday elegance with this remarkable home, where every detail has been thoughtfully curated. The living space boasts a cozy fireplace, certain to keep you warm during the cold months and provide ambiance year-round. The tasteful design is emphasized by a neutral color paint scheme, giving you the freedom to add your personality to the space. The heart of the home; the kitchen, is equipped with a centerpiece island, providing ample area for meal preparation or casual dining. Step into your tranquil haven in the primary bedroom, complete with a generously sized walk-in closet. The luxurious primary bathroom features double sinks, a separate tub, and a shower — it truly is an excellent space for self-pampering. Completing this wonderful property is a fenced-in backyard, perfecting the balance of privacy and outdoor enjoyment. Whether it's for entertaining or simply spending leisure afternoons basking in the outdoors, this slice of paradise is yours to relish. This home is not just a dwelling but a lifestyle of comfort and refinement that could be yours. Experience this treasure for yourself, it's time for you to make this house your home!

7581 Via Vivaldi, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$4,400,000

5 Beds

5 Baths

PTP2402390 MLS

Nestled amidst 5.01 acres of scenic beauty, this 2020 custom build features 5 bedrooms & 5 bathrooms. Boasting a brand new infinity pool with a swim-up bar, spa, gas fire pit, BBQ and spa lounge including a barrel sauna. This estate pairs modern luxury and rural tranquility with a beautiful unobstructed view. The main home is a 4 bed, 4 bath, 3387 SF. A dream come true for equestrian enthusiasts, this property provides an abundance of buildable land perfect for creating an equestrian haven or entertainers paradise. The ADU offers a cozy 336 SF with potential to expand and customize the space to a home office, media room or additional living quarters. This studio includes an attached half bath. The home has access to a private road that leads directly into the Rancho Santa Fe Covenant. The property currently has a STR permit. The owner has run a model on projected revenue of $550k.

16674 Liberty Ridge, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$1,865,000

3 Beds

3 Baths

240009153SD MLS

Experience the epitome of everyday elegance with this remarkable home, where every detail has been thoughtfully curated. The living space boasts a cozy fireplace, certain to keep you warm during the cold months and provide ambiance year-round. The tasteful design is emphasized by a neutral color paint scheme, giving you the freedom to add your personality to the space. The heart of the home; the kitchen, is equipped with a centerpiece island, providing ample area for meal preparation or casual dining. Step into your tranquil haven in the primary bedroom, complete with a generously sized walk-in closet. The luxurious primary bathroom features double sinks, a separate tub, and a shower — it truly is an excellent space for self-pampering. Completing this wonderful property is a fenced-in backyard, perfecting the balance of privacy and outdoor enjoyment. Whether it's for entertaining or simply spending leisure afternoons basking in the outdoors, this slice of paradise is yours to relish. This home is not just a dwelling but a lifestyle of comfort and refinement that could be yours. Experience this treasure for yourself, it's time for you to make this house your home!

7581 Via Vivaldi, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$1,649,500

4 Beds

3 Baths

NDP2403465 MLS

Located in the gated community of Garden Gate in 4S Ranch, this charming home has 4 bedrooms, 3 bathrooms and 2,317 square feet of living space. The main level welcomes you with an open floor plan, seamlessly integrating the kitchen, dining area, and living room, creating the perfect space for entertaining and everyday living. Natural light pours in through numerous windows throughout the home. The dining room has a cozy fireplace, while the spacious kitchen has a large island and walk in pantry. A versatile downstairs bedroom and full bathroom offers flexibility for various needs, whether it be a bedroom, private office or guest room for those out-of-town visitors. Upstairs, the expansive primary suite provides a serene retreat with an abundance of windows, the ensuite bathroom has dual sink vanities, a large soaking tub, separate shower, and spacious walk-in closet. Two additional, large bedrooms share a Jack and Jill style bathroom, complete with separate vanities and a shower tub combo. The first bedroom exudes charm with high vaulted ceilings and a private balcony. Built-in cabinets in the hallway provide extra storage options, while the separate laundry room includes a sink and plenty of space for storage. Step into the backyard, your own private getaway, perfect for entertaining with its cozy patio. Plus, enjoy the convenience of an attached two-car garage. 4S Ranch is the ultimate destination for family-friendly living within the award-winning Poway Unified School District. This is a convenient location is just a mile away from groceries, gyms, gas, and other busine

16428 Sunstone Drive, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$2,099,888

4 Beds

4 Baths

240009049 MLS

Welcome to the picturesque community of Del Sur, where this enchanting family home is nestled just moments away from the acclaimed Del Sur Elementary School. Offering an impressive layout of 4 bedrooms, 3.5 bathrooms, an airy upstairs loft, and sprawling across over 3,000 square feet of living space, this home provides ample space for harmonious family living. Additionally, enjoy the benefits of paid solar, ensuring energy efficiency and cost savings for years to come. Step into the backyard oasis, where relaxation awaits in the bubbling outdoor jacuzzi or beside the inviting glow of the built-in fire pit. Elevate your outdoor gatherings with ease, thanks to the convenient built-in BBQ area, while the surrounding fruit trees—boasting Blood Orange, tangerine, lemon, and lime—imbue your culinary endeavors with a delightful freshness. Positioned on a generous corner lot spanning just over 7,000 square feet, this home offers both space and serenity. Discover the delights of the Del Sur community, boasting an impressive array of 14 parks, 11 of which feature solar-heated pools, hiking trails, dog parks—a haven for outdoor enthusiasts and families alike.

15852 Monte Alto Ter, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$2,099,888

4 Beds

4 Baths

240009049SD MLS

Welcome to the picturesque community of Del Sur, where this enchanting family home is nestled just moments away from the acclaimed Del Sur Elementary School. Offering an impressive layout of 4 bedrooms, 3.5 bathrooms, an airy upstairs loft, and sprawling across over 3,000 square feet of living space, this home provides ample space for harmonious family living. Additionally, enjoy the benefits of paid solar, ensuring energy efficiency and cost savings for years to come. Step into the backyard oasis, where relaxation awaits in the bubbling outdoor jacuzzi or beside the inviting glow of the built-in fire pit. Elevate your outdoor gatherings with ease, thanks to the convenient built-in BBQ area, while the surrounding fruit trees—boasting Blood Orange, tangerine, lemon, and lime—imbue your culinary endeavors with a delightful freshness. Positioned on a generous corner lot spanning just over 7,000 square feet, this home offers both space and serenity. Discover the delights of the Del Sur community, boasting an impressive array of 14 parks, 11 of which feature solar-heated pools, hiking trails, dog parks—a haven for outdoor enthusiasts and families alike.

15852 Monte Alto Ter, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$1,895,000

5 Beds

3 Baths

240008911 MLS

Westwood Valley BLDG.

Exquisite 5 bedroom 3 bathroom home in the highly sought-after Rancho Bernardo neighborhood. Prepare to be wowed when you first walk through the door! Downstairs provides plenty of space for relaxation and entertainment with its spacious floor plan which includes the living room, dining room, kitchen with an oversized island and a family room. That's not all! There is also a bedroom and full bathroom, perfect for guests or a private home office. Upstairs, you'll find a bonus loft with a balcony overlooking breathtaking views of the surrounding area. The primary bedroom features a spacious bathroom with a double head shower and a standalone tub, offering you ultimate luxury and relaxation. In your private backyard you will find a BBQ island, firepit, and mature fruit trees with rolling hill views. Conveniently located close to hiking trails, parks, shopping, and other amenities.

18080 Chieftain Ct, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$1,895,000

5 Beds

3 Baths

240008911SD MLS

Exquisite 5 bedroom 3 bathroom home in the highly sought-after Rancho Bernardo neighborhood. Prepare to be wowed when you first walk through the door! Downstairs provides plenty of space for relaxation and entertainment with its spacious floor plan which includes the living room, dining room, kitchen with an oversized island and a family room. That's not all! There is also a bedroom and full bathroom, perfect for guests or a private home office. Upstairs, you'll find a bonus loft with a balcony overlooking breathtaking views of the surrounding area. The primary bedroom features a spacious bathroom with a double head shower and a standalone tub, offering you ultimate luxury and relaxation. In your private backyard you will find a BBQ island, firepit, and mature fruit trees with rolling hill views. Conveniently located close to hiking trails, parks, shopping, and other amenities.

18080 Chieftain Ct, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$1,798,888

4 Beds

3 Baths

240008855SD MLS

Beautiful home in south 4S Ranch has been meticulously cared for by the original owners. With 4bds & 2.5ba + a large bonus room off the family room that offers great versatility as a home office or gym! Spacious primary suite has large walk-in closet, a juliet balcony to enjoy the night breeze & to take in the spectacular views of Black Mtn. Other features incl OWNED SOLAR, EV charger, large walk-in pantry, upstairs laundry room & storage in the garage. Backyard is perfect for entertaining due to the private and pool sized lot! Located in the "sweet spot" of 4S Ranch, this prime location not only offers a comfortable and welcoming home but also provides a vibrant and well-connected community environment. Buyers will appreciate the nearby Poway Unified schools and parks as well as the Target and grocery stores that will simplify the day to day errands. The 4S Ranch rec center and Boys and Girls Club is a short distance from home which makes after school activities a breeze! Additionally, the freeway is less than 2 miles away and beautiful beaches are a short 25 min drive.

16184 Cayenne Creek Pl, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$1,999,999

4 Beds

3 Baths

240008679 MLS

Beautifully upgraded home with SOLAR in Del Sur boasting a spacious backyard perfect for entertaining! As you enter, you'll be greeted by a tranquil front courtyard featuring a charming water feature and a private porch. Inside, discover an inviting open floor plan with hardwood floors and an impressive iron-rod staircase. The expansive Great Room is highlighted by a contemporary fireplace, abundant natural light from multiple windows and seamless access to the gourmet kitchen. The kitchen features a large center island/breakfast bar with a sink, granite countertops, ample cabinet storage, stainless steel appliances, a double oven, and a custom stained-glass window. A spa like primary suite with a bath and shower that flows seamlessly into a walk in closet. Located in the best school district and close to parks, pool and shopping.

15682 Via Montecristo, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$1,999,999

4 Beds

3 Baths

240008679SD MLS

Beautifully upgraded home with SOLAR in Del Sur boasting a spacious backyard perfect for entertaining! As you enter, you'll be greeted by a tranquil front courtyard featuring a charming water feature and a private porch. Inside, discover an inviting open floor plan with hardwood floors and an impressive iron-rod staircase. The expansive Great Room is highlighted by a contemporary fireplace, abundant natural light from multiple windows and seamless access to the gourmet kitchen. The kitchen features a large center island/breakfast bar with a sink, granite countertops, ample cabinet storage, stainless steel appliances, a double oven, and a custom stained-glass window. A spa like primary suite with a bath and shower that flows seamlessly into a walk in closet. Located in the best school district and close to parks, pool and shopping.

15682 Via Montecristo, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$1,188,888

3 Beds

3 Baths

240008430SD MLS

This lovely, detached Tanglewood home is one you won't want to miss! Freshly painted top to bottom and new epoxy on the garage floor have this place move in ready! Downstairs has bright, white kitchen w/SS appliances and spacious family room plus dining area. Sliding door leads to the private outdoor patio area. Upstairs has primary bd/ba, 2 secondary bedrooms and a hall bath. Fabulous location allows you to enjoy all the community amenities including playground, pool, and spa. Schools & parks are within walking distance! Located in a great community of 4S Ranch, this prime location not only offers a comfortable and welcoming home but also provides a vibrant and well-connected community environment. Buyers will appreciate the nearby schools and parks as well as the Target and grocery stores that will simplify the day to day errands. The 4S Ranch rec center and Boys and Girls Club is a short distance from home, which makes after school activities a breeze! Additionally, the freeway is less than 2 miles away and beautiful beaches are a short 25 min drive. And to top it off, this community has its own private pool/spa which is wonderful for families in the summer months.

9856 Fieldthorn St, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

$3,088,888

5 Beds

5 Baths

240007918SD MLS

Indulge in luxury living with meticulous attention to detail in this magnificent 5-bedroom, 4.5-bathroom residence boasting awe-inspiring canyon views. Every aspect of this home has been thoughtfully upgraded including a completely remodeled dream kitchen with pullout shelving & soft close cabinetry & newly built pool/spa (2023). All this and a 1st floor casita w/separate entrance & dedicated AC unit! Other features incl custom shelving in family rm, built-in bar in dining rm & updated staircase brings a modern flair. Must see! Located in the Award Winning Poway School District. Del Sur is a vibrant San Diego master-planned community where the homes and parks were inspired by historic San Diego neighborhoods. Del Sur boasts 18 miles of shared trails, 11 solar heated pools within the community's 14 parks, and is close to shopping, restaurants, & professional services in Del Sur Town Center. Tucked between Rancho Santa Fe and Black Mountain Open Space Park, Del Sur offers distinctive neighborhoods nestled among 1,000 pristine acres.

15711 Kristen Gln, Rancho Bernardo/4S Ranch/Santaluz/Crosby Estates

board logo

This information is deemed reliable but not guaranteed. You should rely on this information only to decide whether or not to further investigate a particular property. BEFORE MAKING ANY OTHER DECISION, YOU SHOULD PERSONALLY INVESTIGATE THE FACTS (e.g. square footage and lot size) with the assistance of an appropriate professional. You may use this information only to identify properties you may be interested in investigating further. All uses except for personal, non-commercial use in accordance with the foregoing purpose are prohibited. Redistribution or copying of this information, any photographs or video tours is strictly prohibited. This information is derived from the Internet Data Exchange (IDX) service provided by San Diego MLS®. Displayed property listings may be held by a brokerage firm other than the broker and/or agent responsible for this display. The information and any photographs and video tours and the compilation from which they are derived is protected by copyright. Compilation © 2024 San Diego MLS®,

Based on information from California Regional Multiple Listing Service, Inc. as of . This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.