Meet Kortney,

A woman standing and smiling at a group of three people seated at a table in a cozy, well-lit room with a blue and gold tree branch patterned wallpaper, plants, and a lamp in the background.
A woman with blonde curly hair, wearing a white blouse, is sitting on a couch and smiling. The Couch appears to be upholstered in light beige fabric. She is accessorized with a gold bracelet, a watch, and a ring. In the background, there are green pillows, shelves with decorative items, and a plant.

Kortney Maddock is a dedicated Realtor® proudly serving clients throughout Northern California, with a strong focus in East Contra Costa County. Known for her professionalism, integrity, and results-driven approach, Kortney has built her business on relationships, trust, and a genuine commitment to the people she serves.

Specializing in luxury real estate while also having a true passion for helping first-time homebuyers, Kortney believes that every client—no matter the price point—deserves exceptional service and guidance. She understands that buying or selling a home is one of the biggest financial and emotional investments people will make in their lifetime, and she finds it incredibly rewarding to help clients navigate that journey with confidence.

Kortney’s dedication to her clients and innovative marketing strategies have helped her make a significant mark in the Contra Costa County real estate market. Her success has been recognized by the industry, earning her the Rising Star Award from the California Association of Realtors®, followed by being named a Top Producer in 2025. Her marketing expertise has also gained national attention, with one of her luxury listings being featured in the Wall Street Journal.

Known for her strong negotiation skills, creative marketing, and unwavering follow-through, Kortney is committed to delivering an elevated real estate experience. Her clients appreciate not only her expertise but also the lasting relationships she builds long after the transaction closes.

Whether assisting a first-time buyer, marketing a luxury property, or guiding a client through their next chapter, Kortney’s mission remains the same: to provide exceptional service and help her clients achieve their real estate goals with confidence and success.


Seal with mountain graphic and text 'Certified Expert Listing Agent, CELA'
Seal with a house roof graphic, the word 'CREN' in the center, and text around the edge reading 'Certified Real Estate Negotiator.'
A circular badge with green and white colors reading 'Certified Buyers Agent' and 'CBA' in the center, with a key icon and a small house symbol.
Badge indicating new home certification with a house icon and stars.
Announcement for The Wall Street Journal, featured in the December 2024 edition.
Discovery Bay Lions Club emblem featuring a sunset over water and mountains with the Lions logo at the bottom.

Named 2025 California Association of REALTORS® Rising Star.

2025 Top Producer, Corcoran Icon Properties.

Proud supporter of The Gabriel Project.

Let’s Work Together