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1870 Highway K, 
St Clair, MO 63077

$800,000


5

Beds


4

Baths


2,744

Sq Ft


Single Family

Active

Listed by

Lauren M Risley

Adam Bundren

Keller Williams Realty St. Louis

Last updated:

May 13, 2026, 02:52 PM

MLS#

26019166

Source:

MO MARIS

About This Home

1870 Highway K

Set on an impressive 10-acre estate along the Meramec River, this exquisite residence offers over 4,400 square feet of thoughtfully designed living space and a rare blend of refined elegance, breathtaking views, and serene countryside living. From its striking curb appeal to the inviting front porch, every detail welcomes you into a home designed for both comfort and sophistication. Surrounded by natural beauty, the property features its own private nature trails winding through the landscape—perfect for morning walks, peaceful escapes, or exploring your own slice of riverfront paradise. Whether you’re enjoying coffee overlooking the water or unwinding with sunset views across the tree-lined grounds, this setting delivers a truly unmatched sense of tranquility. Inside, rich hardwood floors and soaring vaulted ceilings define the main level, where an expansive open-concept design creates a seamless flow between the living, dining, and kitchen spaces. The gourmet kitchen is a true showpiece, appointed with quartz countertops, a generous center island with a breakfast bar, premium stainless steel appliances, and abundant custom cabinetry. A spacious walk-in pantry and adjacent laundry room add both convenience and functionality. The grand living room is anchored by a stunning fireplace with an elegant mantel, flanked by dual sets of sliding glass doors that flood the space with natural light and open to a private balcony—perfectly positioned to capture the stunning views of the surrounding landscape and river below. The primary suite is a luxurious retreat, featuring a walk-in closet with custom built-ins and a spa-inspired en-suite bath complete with dual vanities, a soaking tub, and a separate shower. A secondary bedroom with a full bath and an additional powder room provide thoughtful accommodations for guests. The walkout lower level is designed for elevated living and entertaining, offering three additional bedrooms, a full bath, and a spacious family room highlighted by a second fireplace and expansive sliding doors leading to a covered patio that spans the length of the home—seamlessly blending indoor comfort with outdoor beauty. Additional flexible spaces include a bonus room, storage area, and utility room. A two-car attached garage and ample additional parking complete this exceptional offering—an unparalleled opportunity to enjoy privacy, space, private trails, riverfront access and timeless luxury in one of the area’s most picturesque settings.

Home Facts

Single Family

4 Baths

5 Bedrooms

Built in 2023

Price Summary

800,000

$291 per Sq. Ft.

MLS #:

26019166

Last Updated:

May 13, 2026, 02:52 PM

Added:

23 day(s) ago


Rooms & Interior

Bedrooms

Total Bedrooms:

5

Bathrooms

Total Bathrooms:

4

Full Bathrooms:

3

Interior

Living Area:

2,744 Sq. Ft.


Structure

Structure

Architectural Style:

Traditional

Year Built:

2023


Lot

Lot Size (Sq. Ft):

435,600


Finances & Disclosures

Finances

Price:

$800,000

Price per Sq. Ft:

$291 per Sq. Ft.

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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.