Doing business in Washington and the surrounding area for over 45 years.

PH: (636) 239-2731

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Our Service Area

Proudly serving all of: Franklin, Gasconade, Warren, St Charles, Montgomery, and Crawford counties.

Parts of: St Louis, Jefferson, Lincoln, Maries, and Phelps county.


Landmark Appraisal Company is a family-owned company which has been serving the Franklin County and surrounding areas since 1976. Our company has grown in the past few years, as we have expanded our staff and our services, and moved our office to Labadie. Karen J. Koopman, the owner of the company, is joined by daughter-in-law, Mallory Koopman. We continue to look for ways to better serve our customers. We look forward to serving our community, in both the residential and commercial aspects of the business.

We only cover the areas where we feel comfortable and are knowledgeable.  It is best to hire an appraiser in the area where they know land values, trends and local realtors for the best appraisal possible.