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Diane Martin

Diane Martin
Real Estate Agent (Managing Broker)
Coal City IL

Managing Broker (IL: 471011113)

14 years experience

REALTOR® 10 Active Listings Serves Grundy County, IL
View on Realtor.com

Contact Information

Brokerage
Hexagon Real Estate

Office Website
Office Address
2625 E Division St
Coal City, IL  60416
(Grundy County)
Office Phone
815-712-7786
Office Fax
Mobile
815-933-9700
Email
real**************@*****.com
Show Email for $5

Service Areas

Beecher: IL Crete: IL Crest Hill: IL Joliet: IL Shorewood: IL Braceville: IL Braidwood: IL Elwood: IL Frankfort Square: IL Frankfort: IL Matteson: IL Crystal Lawns: IL Fairmont: IL New Lenox: IL Preston Heights: IL Ingalls Park: IL Rockdale: IL Darien: IL Lemont: IL Homer Glen: IL Palos Park: IL Woodridge: IL Romeoville: IL Naperville: IL Bolingbrook: IL Peotone: IL South Chicago Heights: IL Steger: IL Lakewood Shores: IL Channahon: IL Wilmington: IL Symerton: IL Custer Park: IL Plainfield: IL Chicago: IL Irwin: IL Bradley: IL Sammons Point: IL Aroma Park: IL Kankakee: IL Limestone: IL Manteno: IL Bourbonnais: IL Grant Park: IL Herscher: IL Union Hill: IL Goodwine: IL Stockland: IL Milford: IL Pembroke Township: IL Momence: IL Sheldon: IL Watseka: IL Woodland: IL

About Diane Martin

Diane Brannock is committed to delivering exceptional service to her clients, making it a cornerstone of her professional ethos. Operating primarily in Northern and Central Illinois, she specializes in Cook, Will, Iroquois, Grundy, and Kankakee Counties. With the robust support of Coldwell Banker's marketing team, Diane ensures that every real estate transaction—whether buying or selling—is executed seamlessly. Her dedication, tenacity, and extensive real estate knowledge are invaluable assets for her clients.

Throughout the real estate process, Diane prioritizes confidentiality, diligence, and accountability. Her enthusiasm for her work is evident in her unwavering commitment to achieving the best outcomes for her clients.

Clients also benefit from Coldwell Banker’s comprehensive online resources. Diane utilizes advanced marketing strategies and multiple listing services (MLS) to provide timely updates and relevant information. Her website offers 24/7 access to essential resources, including tips for buying and selling, loan information, and local school data.

While Diane primarily serves the Northern and Central Illinois regions, she is eager to assist clients in any location. With her expertise and Coldwell Banker's support, clients can expect a professional and dedicated real estate experience. Diane Brannock looks forward to partnering with you on your real estate journey.

**Diane Brannock**
Realtor
501 N Kinzie Ave
Bradley, IL 60915-1224

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

$373,453
Avg. Listing Price
From Diane's portfolio
3.4 / 2.4
Avg. Beds/Baths
Typical property size
1,987 sf
Avg. Square Footage
Interior living space
126
Active Listings
Current inventory

Grundy County, Illinois represents a fascinating microcosm of rural and suburban real estate dynamics, where agricultural heritage meets modern residential development. Located southwest of Chicago, this county has experienced steady growth as families seek affordable housing options within commuting distance of major metropolitan areas. The market here reflects a unique blend of farmland conversions, established small-town neighborhoods, and newer subdivisions that cater to both first-time homebuyers and those looking to escape urban congestion.

With 181 total actively licensed agents serving the county, Grundy County maintains a surprisingly robust real estate professional network for its size. What's particularly noteworthy is that all 181 agents maintain email contact information, indicating a tech-savvy professional community that embraces digital communication tools. This complete digital connectivity suggests a market that's well-positioned to serve modern buyers and sellers who expect responsive, technology-enabled service throughout their real estate transactions.

Major Grundy County, Illinois Real Estate Markets

Morris serves as the county seat and primary real estate hub, featuring a historic downtown area alongside newer residential developments that attract young professionals working in nearby Joliet or even commuting to Chicago. The city's proximity to the Illinois River and its well-maintained infrastructure make it particularly appealing to families seeking small-town charm with urban amenities. Coal City has emerged as another significant market driver, experiencing notable residential growth as developers capitalize on available land and the community's reputation for excellent schools.

Minooka, though partially extending into adjacent counties, represents a key growth corridor where Grundy County's agricultural character transitions into more suburban development patterns. The communities of Diamond, Gardner, and Braceville offer distinct market segments, from rural properties with acreage to modest suburban homes that appeal to budget-conscious buyers. These smaller municipalities often surprise newcomers with their strong local economies and active community engagement, factors that contribute to stable property values and consistent buyer interest.

Market Dynamics and Geographic Complexity

Grundy County's real estate market benefits from its strategic location within the Chicago metropolitan statistical area while maintaining significantly lower property values than inner-ring suburbs. The county experiences interesting seasonal patterns, with spring and summer months showing increased activity in both residential sales and agricultural land transactions. Many properties feature larger lots than typical suburban markets, reflecting the area's agricultural roots and appealing to buyers seeking space for gardens, workshops, or small-scale farming operations.

The market demonstrates remarkable stability, with inventory levels that typically favor neither buyers nor sellers exclusively. Agricultural zoning transitions create unique opportunities for development, though they also introduce complexity that requires agents with specialized knowledge of land use regulations. Properties near major transportation corridors, particularly those with access to Interstate 55 and Route 47, command premium prices due to their commuter-friendly locations and potential for future appreciation as suburban sprawl continues outward from Chicago.

Why Businesses Need Grundy County, Illinois Agent Contact Data

Mortgage lenders, insurance companies, and home service providers recognize Grundy County as an underserved market with significant growth potential, making direct access to all 181 licensed agents essential for business development strategies. The county's unique position as both a suburban extension and rural community creates diverse client needs that require partnerships with knowledgeable local professionals. Companies offering specialized services like agricultural property insurance, rural internet solutions, or custom home building find that establishing relationships with the entire agent network maximizes their market penetration opportunities.

Real estate technology companies and professional service providers particularly value Grundy County's digitally connected agent community, as evidenced by the 100% email availability rate among licensed professionals. This connectivity enables efficient communication for everything from continuing education opportunities to new service announcements. The concentrated yet comprehensive agent network makes Grundy County an ideal testing ground for new products or services before broader regional rollouts, while the community's growth trajectory ensures sustained business opportunities for companies that establish strong local partnerships early.

Current Property Listings

As of 2/17/2026, Diane Martin has 10 properties for sale in Coal City and surrounding areas.

$65,000

Listed 2025-10-08

113 Largemouth Ln
Wilmington, IL  60481

Beds: 1.0
Baths: 1.0
Sq Ft: 400
Single Family Map
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$88,900

Listed 2025-04-15

8 Bluegill Cir
Wilmington, IL  60481

Beds: 1.0
Baths: 1.0
Sq Ft: 400
Single Family Map
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$19,500

Listed 2025-09-09

S Hickory Ave Lot 9-13
Wilmington, IL  60481

Beds:
Baths:
Sq Ft:
Lot: 12,197 sf
Land Map
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$80,000

Listed 2025-11-29

13 Hole in the Wall Rd
Wilmington, IL  60481

Beds:
Baths:
Sq Ft:
Land Map
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$210,000

Listed 2025-12-29

194 Fossil Cove Ln
Wilmington, IL  60481

Beds: 2.0
Baths: 2.0
Sq Ft: 1,500
Lot: 4,792 sf
Single Family Map
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$50,000

Listed 2025-12-04

124 Tully Rd
Wilmington, IL  60481

Beds:
Baths:
Sq Ft:
Lot: 5,227 sf
Land Map
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$215,000

Listed 2026-01-02

1504 Woodbridge Rd Apt 1A
Joliet, IL  60436

Beds: 3.0
Baths: 2.0
Sq Ft: 1,494
Condos Map
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$35,000

Listed 2025-06-04

504 N Pine St
Gardner, IL  60424

Beds:
Baths:
Sq Ft:
Lot: 16,553 sf
Land Map
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$320,000

Listed 2025-11-24

225 Fossil Cove Ln
Wilmington, IL  60481

Beds: 4.0
Baths: 2.0
Sq Ft: 2,100
Lot: 8,712 sf
Single Family Map
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$255,000

Listed 2025-10-04

641 N Jackson Ave
Bradley, IL  60915

Beds: 3.0
Baths: 2.0
Sq Ft: 1,450
Lot: 8,712 sf
Single Family Map
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Current Property Rentals

Diane Martin currently has no rental properties available in Coal City and surrounding areas. Check back later.