Top Realtors and Real Estate Agents in South Barrington, IL
Rankings based on verified MLS transaction data. Last updated May 2026. No pay-to-play.
Top Agent
Top 0.25%
in South Barrington, IL
$781M
All-Time Sales
$470K - $4.8M
Price Range
7%
Negotiated Off List
Top AgentTop 0.49%
in South Barrington, IL
$407.7M
All-Time Sales
$440K - $5.5M
Price Range
6%
Negotiated Off List
Top Agent
(1)
George Broustis
Jameson Sotheby's International Realty
46 Years of experience
0+ Sales in the last 12 months
Top 0.99%
in South Barrington, IL
$28.7M
All-Time Sales
$720K - $1.9M
Price Range
Top AgentTop 1.48%
in South Barrington, IL
$245.8M
All-Time Sales
$230K - $8.3M
Price Range
5%
Negotiated Off List
Top AgentTop 2.22%
in South Barrington, IL
$378.2M
All-Time Sales
$300K - $1.4M
Price Range
2%
Negotiated Off List
Top Agent(41)
Connie Antoniou
Jameson Sotheby's International Real Estate
41 Years of experience
52+ Sales in the last 12 months
Top 2.71%
in South Barrington, IL
$350.4M
All-Time Sales
$660K - $4.5M
Price Range
7%
Negotiated Off List
Top AgentTop 2.96%
in South Barrington, IL
$289.7M
All-Time Sales
$290K - $2.1M
Price Range
6%
Negotiated Off List
Top Agent(106)
Jen Ortman
Berkshire Hathaway HomeServices Starck Real Estate
24 Years of experience
58+ Sales in the last 12 months
Top 2.96%
in South Barrington, IL
$290.9M
All-Time Sales
$290K - $1.6M
Price Range
5%
Negotiated Off List
Top AgentTop 3.2%
in South Barrington, IL
$893.9M
All-Time Sales
$240K - $30M
Price Range
5%
Negotiated Off List
Top AgentTop 3.2%
in South Barrington, IL
$328.7M
All-Time Sales
$210K - $1000K
Price Range
5%
Negotiated Off List
Top AgentTop 3.2%
in South Barrington, IL
$308.1M
All-Time Sales
$260K - $1.8M
Price Range
Top Agent(16)
John and Pat LaDeur
Berkshire Hathaway Home Services
39 Years of experience
56+ Sales in the last 12 months
Top 3.2%
in South Barrington, IL
$270.9M
All-Time Sales
$240K - $2.5M
Price Range
4%
Negotiated Off List
Top AgentTop 3.2%
in South Barrington, IL
$230.8M
All-Time Sales
$210K - $3.3M
Price Range
4%
Negotiated Off List
Top AgentTop 3.2%
in South Barrington, IL
$127.7M
All-Time Sales
$170K - $1.1M
Price Range
4%
Negotiated Off List
Top Agent(467)
Jim Starwalt & The Star Home Team
Better Homes and Gardens Real Estate Star Homes
28 Years of experience
570+ Sales in the last 12 months
$953.2M
All-Time Sales
$200K - $2.2M
Price Range
5%
Negotiated Off List
Top Agent$967.6M
All-Time Sales
$360K - $52.4M
Price Range
5%
Negotiated Off List
Top Agent(346)
Danielle Dowell
Berkshire Hathaway Home Services
19 Years of experience
364+ Sales in the last 12 months
$1.12B
All-Time Sales
$440K - $6.5M
Price Range
6%
Negotiated Off List
Top Agent$372.7M
All-Time Sales
$160K - $1.4M
Price Range
5%
Negotiated Off List
Top Agent$330M
All-Time Sales
$190K - $2.6M
Price Range
5%
Negotiated Off List
Top Agent$310.1M
All-Time Sales
$230K - $2.9M
Price Range
5%
Negotiated Off List
Top Agent$551.6M
All-Time Sales
$400K - $3M
Price Range
4%
Negotiated Off List
Top Agent(138)
John and Beth Garry
Keller Williams Premiere Properties
29 Years of experience
44+ Sales in the last 12 months
$242.7M
All-Time Sales
$220K - $1.4M
Price Range
5%
Negotiated Off List
Top Agent$164.2M
All-Time Sales
$160K - $1.5M
Price Range
4%
Negotiated Off List
Top Agent$233.2M
All-Time Sales
$260K - $3.6M
Price Range
6%
Negotiated Off List
Top Agent(28)
Renee OBrien
Keller Williams Northshore West
18 Years of experience
32+ Sales in the last 12 months
$143.2M
All-Time Sales
$180K - $1.3M
Price Range
6%
Negotiated Off List
South barrington Housing Market Trends
Median Sale Price
$970,000
-17.73% year-over-yearMedian Days on Market
64
+36 days year-over-yearSale-to-List Price
98.46%
-2.46% year-over-yearHomes Sold Above List Price
37.5%
-22.5% year-over-yearOff the Market in 2 Weeks
87.5%
+37.5% year-over-yearMonths of Supply
2.1
Realtors in South barrington
357
Verified MLS market data through May 2026.
Do Top South Barrington Agents Sell Faster?
The 25 top-ranked agents on EffectiveAgents in South Barrington sell in a median of 30 days, compared with the South Barrington market median of 64 days on market.
About 34 days faster (53% quicker than the South Barrington market)
Median days to sale reported by the top-ranked South Barrington agents on EffectiveAgents, compared with the South Barrington market median days on market. Agent figures reflect each agent's reported sales history.
When Is the Best Time to Sell a House in South Barrington?
Based on the last 24 months of verified MLS market data, homes in South Barrington sell fastest and closest to asking when they go under contract in July. To hit that window, plan to list around May.
Median days on market by month (shorter is faster)
July
Best month to sell
62 days
Typical time on market
99.4%
Of asking price
Seasonal averages from the last 24 months of South Barrington, IL sales. Individual results vary with price, condition, and how the broader market moves. A local agent can pinpoint the right timing for your home.
How We Rank South Barrington Real Estate Agents
Our rankings are built from verified MLS transaction data, not advertising spend. For every agent we analyze more than fifteen performance signals, including sales volume in your city and zip code, recent and all-time transactions, days on market, negotiation results (how far above or below list price an agent's clients actually close), price-point fit, and verified reviews. The agents shown first are those whose verified results put them at the top of the South Barrington market today.
Agents cannot pay for placement in these rankings. The underlying data refreshes as new closed transactions are reported, so rankings shift with real market performance. Learn how we rank agents.
Rankings reviewed by Kevin Stuteville, Licensed Florida Real Estate Broker (License BK3068131), Founder of EffectiveAgents.
Data last updated: May 2026
South Barrington Real Estate Agent FAQs
How were these South Barrington real estate agents ranked?
Rankings are built from verified MLS transaction data. We analyze more than fifteen performance signals for every agent, including sales volume in your city and zip code, recent and all-time transactions, days on market, negotiation results, price-point fit, and verified reviews. Agents cannot pay for placement.
How many real estate agents are in South Barrington?
Our data covers 357 real estate agents serving the South Barrington area. The count represents agents with transaction activity recorded in our South Barrington market data, not simply everyone holding a license.
What does the median sale price in South Barrington mean for sellers?
South Barrington's median sale price is $970,000 as of May 2026. Half of recent sales closed above that figure and half below. It is a useful baseline for understanding the market, but an experienced local agent will price your home against comparable recent sales in your neighborhood, not the citywide median.
Does it cost anything to use EffectiveAgents?
No. EffectiveAgents is free for home buyers and sellers, with no obligation to work with any agent we match you with.
Do agents pay to be ranked or featured?
No. Agents cannot pay for placement anywhere in these rankings. Positions are earned from verified transaction performance only.
What commission do South Barrington realtors charge?
Commissions are negotiable and vary by agent, service level, and transaction. There is no set rate, and recent industry changes have made commission structures more flexible than ever. Discuss the structure directly with your agent before signing a listing or buyer agreement.
Should I use a local South Barrington agent or a national brand?
The individual agent matters more than the brand on the sign. Offices within the same national franchise vary widely in performance, and the agent you hire, not the logo, prices your home, negotiates your contract, and manages your closing. A strong local agent brings firsthand knowledge of South Barrington neighborhoods, pricing patterns, and buyer activity. Compare agents on verified local results such as recent sales, days on market, and negotiation outcomes rather than name recognition.
What questions should I ask a South Barrington realtor before hiring them?
Ask how many homes they have closed in South Barrington in the past year, what their average sale-to-list ratio is, and how much of their business is in your neighborhood and price range. Ask how they will market your home or find you listings, and how often they will communicate. Strong agents answer with specifics. Verified transaction data is the fastest way to confirm what you hear.
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