Northrop Realty, A Long & Foster Company Real Estate Sales Agencies & Agents Northrop Realty, A Long & Foster Company Visit Website Request Info 209 5th Street Bethany Beach, DE 19930 (302) 539-0800 About Map About Full service real estate brokerage. Our brokerage is comprised of passionate real estate, marketing, and administrative professionals committed to proactively promoting and selling your home. What's Nearby? Distance: 5 10 15 20 25 50 mi.