Diana Calderon
REALTOR®
About us...
Founded by John Shamshoian in 1991, Realty Concepts is a real estate brokerage with offices in Fresno, Clovis, and Oakhurst. Over the years, Realty Concepts has expanded to serve the Central Valley successfully, while maintaining our integrity and close-knit family atmosphere. Our agents are local experts, with deep ties in their communities and a dedication to meeting each of their clients’ needs.
At our core, Realty Concepts is a family first, and a company second. By placing people before profits, we have created a culture wherein our agents are empowered, our communities are served and our clients are cherished. “We’re obsessed with our culture. We don’t run our business like a business. We see Realty Concepts as a mission: to serve our Realtors so they can serve their clients,” explains J.P. Shamshoian, President of Realty Concepts.
At Realty Concepts, our values are simple: quality before quantity, service before sales, people before profits, you before us. Every day, we work to deliver on that promise.
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Based on information from California Regional Multiple Listing Service, Inc. as of September 24, 2026 10:12 AM UTC This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.
Last updated: September 24, 2026 10:18 AM UTC Property Information © 2026 
© 2026 Fresno Association of REALTORS ®. All rights reserved. The data relating to real estate for sale on this web site comes in part from the Internet Data eXchange (IDX) of the Multiple Listing Service. Real estate listings held by brokerage firms other than Realty Concepts Fresno are marked with the IDX logo and detailed information about them includes the name of the listing broker and the name of the listing agent.
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MetroList CA data last updated: September 24, 2026 9:40 AM UTC 
Tulare County Association of REALTORS® All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be
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