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Sandra Grassmuck

Sandra Grassmuck
Real Estate Agent
Lake Saint Louis MO

(MO: 2005016577)

24 years experience

REALTOR® 4 Active Listings Serves Saint Charles County, MO
View on Realtor.com

Contact Information

Brokerage
Grassmuck Realty Llc

Office Website
Office Address
15 Lakeside Dr
Lake Saint Louis, MO  63367
(Saint Charles County)
Office Phone
636-634-2828
Office Fax
636-634-2828
Mobile
314-486-8333
Email
sand*@***************.com
Show Email for $5

Service Areas

Imperial: MO Arnold: MO Cedar Hill Lakes: MO LaBarque Creek: MO Cedar Hill: MO Valley Park: MO Fenton: MO Murphy: MO Byrnes Mill: MO High Ridge: MO Peaceful Village: MO Parkdale: MO House Springs: MO Scotsdale: MO Hazelwood: MO St. Charles: MO St. Peters: MO Harvester: MO Dardenne: MO Weldon Spring Heights: MO Weldon Spring: MO O'Fallon: MO Cottleville: MO St. Paul: MO Dardenne Prairie: MO Josephville: MO Wentzville: MO Lake St. Louis: MO Flint Hill: MO New Melle: MO

About Sandra Grassmuck

Sandy Grassmuck brings over 18 years of experience to the real estate sector as the Owner and Managing Broker of Grassmuck Realty LLC, an independent brokerage with offices in Lake St. Louis and Fenton.

Her achievements include the Readers Choice Top Agent Award in 2014, the Five Star Agent Award from St. Louis Magazine in 2011, and recognition as one of the top 50 businesses in St. Charles County by Streetscape Magazine in 2011.

Sandy holds multiple designations from the National Association of Realtors, including the Council of Residential Specialists (CRS), Graduate Realtor Institute (GRI), ePRO Technology certification, Short Sales and Foreclosure Resource (SFR) certification, Broker Price Opinion Resource (BPOR) certification, and Senior Real Estate Specialist (SRES) designation. She is also a graduate of the prestigious Missouri Realtors® Leadership Academy and is certified in Feng Shui.

Dedicated to giving back to the real estate community, Sandy actively participates in various state and local committees. In 2018, she served as Treasurer for the St. Charles Realtors, Secretary for the Women's Council of Realtors Missouri Network, and Secretary for the Council of Independent Real Estate Brokers. Additionally, she has spent six years as a Director for the St. Charles County Association of Realtors and seven years as a Director for Missouri Realtors®.

Sandy is also a significant investor in the Realtor® Political Action Committee, advocating for homeowner rights. She believes that staying engaged and informed about the evolving real estate landscape is crucial for providing her clients with exceptional service and representation.

With two locations and a team of licensed professionals serving St. Louis, St. Charles, Franklin, Lincoln, and Warren Counties, Grassmuck Realty is always ready to welcome new clients and referrals.

The firm’s diverse team specializes in various real estate areas, including assisting first-time homebuyers, supporting seniors transitioning to assisted living, and providing resources for investors. Grassmuck Realty is committed to guiding clients through the successful sale or purchase of their dream home.

Saint Charles County, MO Real Estate Market Analysis (Single Family Homes)

$481,646
Avg. Listing Price
From Sandra's portfolio
3.4 / 2.8
Avg. Beds/Baths
Typical property size
2,366 sf
Avg. Square Footage
Interior living space
1585
Active Listings
Current inventory

Saint Charles County, Missouri represents one of the most dynamic suburban real estate markets in the greater St. Louis metropolitan area, characterized by steady population growth and diverse housing options spanning from historic riverfront communities to modern master-planned developments. With 2,168 total actively licensed agents serving the county, the market maintains a robust professional network that reflects the area's continued expansion and economic vitality.

The county's real estate landscape benefits from its strategic position along the Missouri River and its proximity to major employment centers, creating a unique blend of small-town charm and metropolitan accessibility. All 2,168 agents maintain email contact information, indicating a highly connected and technology-forward professional community that serves buyers and sellers across price points from starter homes in Wentzville to luxury properties in Weldon Spring.

Major Saint Charles County, Missouri Real Estate Markets

The county's real estate activity centers around several key municipalities, with St. Charles serving as the historic anchor city featuring restored Main Street properties and established neighborhoods along the riverfront. O'Fallon has emerged as a major growth engine, particularly attracting young families with its excellent schools and newer subdivisions, while Wentzville continues expanding rapidly with affordable housing options and strong commercial development along Interstate 70.

Lake Saint Louis offers a distinctive resort-style living experience with its private lakes and golf courses, creating a premium market segment, while communities like St. Peters and Cottleville provide diverse housing stock ranging from townhomes to executive properties. The western portions of the county, including Dardenne Prairie and Weldon Spring, represent some of the area's most upscale markets with custom homes and estate properties.

Market Dynamics and Geographic Complexity

Saint Charles County's real estate market operates across multiple school districts and municipal boundaries, creating distinct micro-markets with varying price points and buyer preferences. The Francis Howell and Fort Zumwalt school districts significantly influence property values and market activity, while newer developments often feature homeowner associations with amenities that appeal to relocating professionals from the broader St. Louis region.

Seasonal patterns show increased activity during spring and summer months, coinciding with corporate relocations and family moves timed around school calendars. The market benefits from diverse economic drivers including healthcare, technology, and manufacturing employers, which helps maintain stability even during broader economic fluctuations affecting other regional markets.

Why Businesses Need Saint Charles County, Missouri Agent Contact Data

Mortgage lenders, title companies, and insurance providers require comprehensive agent contact information to effectively serve this fragmented market where referral relationships drive significant business volume. The county's 2,168 agents represent various brokerages and specialties, making targeted communication essential for vendors seeking to establish market presence or expand existing relationships with real estate professionals.

Home service companies, from inspectors to contractors, depend on agent networks for referrals and repeat business opportunities across the county's diverse communities. Marketing services, real estate technology providers, and continuing education companies also benefit from direct access to agent contact data to effectively reach this substantial professional market with relevant products and services.

Current Property Listings

As of 2/17/2026, Sandra Grassmuck has 4 properties for sale in Lake Saint Louis and surrounding areas.

$305,000

Listed 2025-09-03

24 Village Trail Dr Unit 7
Branson, MO  65615

Beds: 2.0
Baths: 2.0
Sq Ft: 970
Condos Map
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$845,000

Listed 2025-11-14

315 Oak Creek Farm Ct
Wentzville, MO  63385

Beds: 4.0
Baths: 3.5
Sq Ft: 5,926
Lot: 130,680 sf
Single Family Map
View Full Details

$129,900

Listed 2025-12-20

1832 Gascony Parc Dr Unit 1832
Lake Saint Louis, MO  63367

Beds: 2.0
Baths: 1.0
Sq Ft: 915
Condos Map
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$179,900

Listed 2025-10-02

950 E Rue De La Banque Unit 202
Creve Coeur, MO  63141

Beds: 2.0
Baths: 2.0
Sq Ft: 1,072
Lot: 1,481 sf
Condos Map
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Current Property Rentals

Sandra Grassmuck currently has no rental properties available in Lake Saint Louis and surrounding areas. Check back later.