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Mark Gaetjen

REALTOR®Licensed in VA & MD

Mark is a member of KC Real Estate Group

Rockville Office

1801 Rockville Pike, Suite 103
Rockville, Maryland 20852

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About me
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Contact

Mark Gaetjen

REALTOR® Licensed in VA & MD

About Mark

In addition to more than 20 years of real estate experience, Mark Gaetjen has more than 40 years of construction and renovation experience. Mark is a Class A Home Renovator as well as a Licensed Real Estate Agent. This complimentary experience enables Mark to point out key aspects of properties you are considering that may have gone unnoticed otherwise. He draws from his real estate and construction knowledge and insight to advise on which home improvements will be most financially beneficial for you. Dedicated to helping you achieve your dream of ideal home ownership, Mark is known for his extensive knowledge of Northern Virginia real estate, strong communication skills, and exceptional client service.

My Website

Mark is a member of KC Real Estate Group

Rockville Office

1801 Rockville Pike, Suite 103
Rockville, Maryland 20852

Quick Links

Home Search with Mark

Rapid Listing Alerts
Property Comparison
Collaborative Mobile App

List with CENTURY 21 New Millennium

Buy with CENTURY 21 New Millennium

Designations

Name Association
REALTOR® NAR

A REALTOR® holds a real estate license from the state and is a member of the NATIONAL ASSOCIATION OF REALTORS®, N.A.R., a local board or association, and has pledged to abide by NAR's Code of Ethics.
Accredited Buyer’s Representative NAR

The Accredited Buyer’s Representative (ABR®) designation is designed for real estate buyer agents who focus on working directly with buyer-clients at every stage of the home-buying process.
Seniors Real Estate Specialist NAR

The SRES® Designation program educates REALTORS® on how to profitably and ethically serve the real estate needs of the fastest growing market in real estate, clients age 50+.
CIH | Leads Network Relocation Specialist Compass

Through CENTURY 21 New Millennium's relationship with CIH | Leads Network, the number-one relocation company in the world, we proudly serve military, government and corporate buyers and sellers, including members of affinity groups such as Navy Federal Credit Union, AARP and Anywhere Military Rewards.

Awards

Northern Virginia Magazine | Top Producing Real Estate Agents 2024, 2025
RealTrends Verified Top Real Estate Professionals 2020, 2021, 2022, 2024, 2025, 2026
Washingtonian Top Residential Real Estate Producers 2019-2022, 2024, 2025
Grand CENTURION Team 2020, 2021, 2022, 2024, 2025
Double CENTURION Team 2019, 2023
CENTURION Team 2018
CENTURION Honor Society Team 2022
#1 CENTURY 21 Team in Virginia (Units) 2022
#2 CENTURY 21 Team in Maryland 2023, 2024
Top 5 CENTURY 21 Team in Virginia 2019, 2020, 2021
Top 25 CENTURY 21 Team in the U.S. 2019-2023
Top 100 CENTURY 21 Team in the U.S. 2018
President’s Team 2019, 2020
Quality Service Pinnacle Team 2019, 2022
Quality Service Team 2018, 2024
#17 CENTURY 21 Team in the U.S. 2024
Bethesda Magazine | Top Producing Real Estate Agents 2025
Arlington Magazine | Top Producing Real Estate Agents 2025
#1 CENTURY 21 Team in Maryland 2025
#9 CENTURY 21 Team in the U.S. 2025