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Connie Antoniou

Connie Antoniou
Real Estate Agent (Managing Broker)
Barrington IL

Managing Broker (IL: 471000677)

41 years experience

REALTOR® 5 Active Listings Serves Lake County, IL
View on Realtor.com

Contact Information

Brokerage
Jameson Sotheby's International Realty

Office Website
Office Address
109b E Station St
Barrington, IL  60010
(Lake County)
Office Phone
847-381-7100
Office Fax
Mobile
847-381-7100
Email
conn***********@**************.com
Show Email for $5

Service Areas

Lyons: WI Como: WI Lake Geneva: WI Springfield: WI Bloomfield: WI Green Oaks: IL Mettawa: IL Lincolnshire: IL Lake Forest: IL Lake Zurich: IL Deer Park: IL Long Grove: IL Kildeer: IL Hawthorn Wds: IL Hawthorn Woods: IL Forest Lake: IL St. Charles: IL Lily Lake: IL Elgin: IL Campton Hills: IL Hinsdale: IL Westmont: IL Oakbrook Terrace: IL Westchester: IL Oak Brook: IL Willowbrook: IL Burr Ridge: IL Darien: IL Indian Head Park: IL Inverness: IL Tower Lakes: IL North Barrington: IL South Barrington: IL Hoffman Estates: IL Fox River Grove: IL Dundee: IL Port Barrington: IL Barrington Hills: IL Barrington: IL Island Lake: IL Lake Barrington: IL

About Connie Antoniou

**Connie** is a dedicated real estate professional specializing in luxury properties for discerning homeowners. With a keen ability to capture the unique essence of high-end homes, Connie effectively connects sellers with qualified buyers, ensuring that each property is showcased to its fullest potential.

After acquiring her first Sotheby’s Real Estate office in Barrington, adjacent to the Wynstone Community, Connie transitioned from a successful 20-year career in the competitive Hinsdale market, where she consistently ranked among the top five agents. During her tenure, she developed lasting relationships with notable figures, including players and coaches from the Chicago Blackhawks, as well as prominent Chicago executives.

However, relocating to Barrington in 2007 presented unforeseen challenges, as the real estate landscape shifted dramatically amid an economic downturn. Undeterred, Connie adapted her strategies and quickly regained her standing, consistently ranking in the top 5% of Chicago agents. In 2012, she expanded her operations by opening a second office in Barrington, catering to the growing demand for luxury brokerage services in the area.

Recognizing the need for enhanced resources, Connie partnered with Jameson Sotheby’s, merging her boutique firm into a larger organization while maintaining a commitment to personalized service. This collaboration has elevated luxury lifestyle marketing for clients in Barrington and the surrounding Northwest suburbs.

Born in Dubuque to families with deep roots in the motion picture industry, Connie has had the privilege of meeting numerous Hollywood icons, including Sylvester Stallone and Kevin Costner. Her fond memories of working in the family business, particularly making popcorn, have instilled a strong work ethic that she applies to her real estate career.

Passionate about helping clients navigate the complexities of the market, Connie offers tailored guidance on pricing strategies based on individual motivations and timelines. She employs comprehensive marketing techniques, utilizing both online and print channels to attract qualified buyers.

Connie invites potential clients to explore her innovative marketing strategies and tools designed to maximize property visibility and engagement. She prides herself on maintaining confidentiality and building trust throughout the process, ensuring that each client feels supported and informed.

Outside of real estate, Connie enjoys golfing and spending time with her three poodles. A former college tennis player, she appreciates the balance of leisure and friendship, often sharing moments with past and current clients over a glass of wine.

For a personalized discussion about your real estate needs, Connie welcomes the opportunity to connect and explore how she can assist you in finding or selling your home.

Lake County, IL Real Estate Market Analysis (Single Family Homes)

$760,157
Avg. Listing Price
From Connie's portfolio
3.6 / 3.0
Avg. Beds/Baths
Typical property size
2,826 sf
Avg. Square Footage
Interior living space
1510
Active Listings
Current inventory

Lake County, Illinois represents one of the most dynamic and geographically diverse real estate markets in the Chicago metropolitan area, stretching from affluent lakefront communities to rapidly growing suburban developments. With 3,982 actively licensed real estate agents operating throughout the county, this market demonstrates remarkable depth and professional expertise that reflects the region's complex housing landscape and substantial transaction volumes.

The market's sophistication becomes evident when examining agent connectivity and professionalism—all 3,982 licensed agents maintain email addresses, indicating a tech-savvy professional community well-equipped to handle modern real estate transactions. This level of digital engagement reflects the county's proximity to Chicago's business districts and the increasingly complex needs of buyers relocating from urban centers to suburban communities like Highland Park, Vernon Hills, and Grayslake.

Major Lake County, Illinois Real Estate Markets

The county's real estate landscape divides into distinct regional markets, each with unique characteristics and price points. The eastern lakefront communities, including Lake Forest, Highland Park, and Winnetka, command premium prices due to their proximity to Lake Michigan and established wealth, while western communities like Round Lake Beach and Grayslake offer more affordable options for families seeking quality schools and suburban amenities. Waukegan, the county seat, provides urban-style living with ongoing revitalization efforts attracting both investors and first-time homebuyers.

Central Lake County communities such as Vernon Hills, Libertyville, and Mundelein represent the sweet spot for many buyers, offering excellent school districts, corporate headquarters proximity, and diverse housing stock ranging from starter homes to executive properties. These areas have experienced particularly strong growth as remote work arrangements allow professionals to prioritize space and community amenities over commute times to downtown Chicago.

Market Dynamics and Geographic Complexity

Lake County's real estate market operates with surprising independence from Chicago's urban core, driven by local employment hubs including Abbott Laboratories, Baxter International, and numerous corporate campuses along the I-94 corridor. This economic diversity creates multiple micro-markets within the county, where agents must understand everything from lakefront luxury properties exceeding $2 million to affordable condominiums and townhomes serving young professionals and retirees.

The market's complexity increases due to varying municipal regulations, school district boundaries, and transportation access points that significantly impact property values. Agents frequently navigate between communities where identical homes might vary by $100,000 based solely on school district assignments or proximity to Metra stations, requiring deep local knowledge and extensive professional networks to serve clients effectively.

Why Businesses Need Lake County, Illinois Agent Contact Data

Real estate service providers, from mortgage lenders to home improvement contractors, find Lake County's agent database invaluable due to the market's high transaction velocity and premium service expectations. With nearly 4,000 agents actively working in a geographically compact area, businesses can efficiently reach decision-makers who influence significant residential and commercial real estate investments throughout the region.

The universal email connectivity among Lake County agents enables targeted marketing campaigns for financial services, technology platforms, and professional development opportunities that align with the market's sophisticated clientele. Companies launching new real estate technologies or services often pilot programs in markets like Lake County, where agent professionalism and client expectations drive rapid adoption of tools that improve transaction efficiency and customer experience.

Current Property Listings

As of 2/17/2026, Connie Antoniou has 5 properties for sale in Barrington and surrounding areas.

$1,225,000

Listed 2025-09-15

15 S Wynstone Dr
North Barrington, IL  60010

Beds: 6.0
Baths: 4.5
Sq Ft: 5,586
Lot: 53,256 sf
Single Family Map
View Full Details

$2,725,000

Listed 2025-06-14

96 S Wynstone Dr
North Barrington, IL  60010

Beds: 5.0
Baths: 6.5
Sq Ft: 11,736
Lot: 91,476 sf
Single Family Map
View Full Details

$1,890,000

Listed 2025-11-15

3 Hillburn Ct
North Barrington, IL  60010

Beds: 6.0
Baths: 5.5
Sq Ft: 10,532
Lot: 65,379 sf
Single Family Map
View Full Details

$2,050,000

Listed 2025-11-13

79 S Wynstone Dr
North Barrington, IL  60010

Beds: 7.0
Baths: 5.5
Sq Ft: 8,995
Lot: 59,067 sf
Single Family Map
View Full Details

$1,400,000

Listed 2025-08-28

83 S Wynstone Dr
North Barrington, IL  60010

Beds: 5.0
Baths: 4.5
Sq Ft: 7,000
Lot: 50,965 sf
Single Family Map
View Full Details

Current Property Rentals

Connie Antoniou currently has no rental properties available in Barrington and surrounding areas. Check back later.