620 Park Avenue

The data relating to real estate for sale on this website comes in part from the Internet Data Exchange (IDX) program of the New Jersey Multiple Listing Service, Inc. Real estate listings held by brokerage firms other than Keller Williams Realty are marked with the NJMLS IDX logo, and detailed information about them includes the name of the listing brokerage. Some properties listed with participating brokers do not appear on this website at the request of the seller. Listings of brokers that do not participate in Internet Data Exchange do not appear on this website. All information is deemed reliable but not guaranteed. Copyright © 2026 New Jersey Multiple Listing Service, Inc. All rights reserved. This information is provided for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Listing data last updated July 23, 2026 at 11:27 AM ET.