Unlisted, a groundbreaking digital real estate community focused on the 98% of homes that aren’t for sale — yet, today announced that Holly Tennant Billy, real estate professional with TTR Sotheby’s International Realty, has joined the platform as a Local Expert for buyers and homeowners in ZIP codes 22101 and 22207. She joins fellow TTR Sotheby’s International Realty colleagues Daniel Heider, Melanie Hayes, Jaclyn Mason, and Thomas Kolker in Unlisted’s growing network.
Unlisted’s technology is designed to open up possibilities for everyone in the real estate ecosystem: buyers, homeowners, and agents alike. Buyers gain new ways to discover homes they love beyond what’s listed on the MLS. Homeowners gain tools to better understand interest in their property and connect with potential buyers. Real estate professionals gain a program that elevates their expertise and brings more possibilities into view for the clients they serve.
Unlisted uses publicly available data to create a digital property profile for every home in the country. These records can be quickly searched and organized into curated lists of homes that meet a buyer’s criteria. Though not for sale, buyers can join a Waitlist for the homes they love — creating new pathways for connection and giving homeowners opportunities they may not have considered.
Each vetted real estate professional partnering with Unlisted receives an agent profile linked to every home in their ZIP code. Only one agent is selected per ZIP, highlighting their credibility and deep understanding of the local market. As Unlisted expands nationwide, the mission remains the same: to provide buyers, homeowners, and agents with a platform built on connection, expertise, and meaningful insights.
A DC native and lifelong Northern Virginian, Holly brings more than 25 years of lived experience in Arlington and a track record as a five-star, award-winning agent recognized by Washingtonian and Arlington Magazines. Known for her authenticity, communication, and unwavering dedication, she has built a business rooted in trust and transparency — qualities that resonate deeply with the communities she serves.
Before entering real estate in 2015, Holly built a successful career in marketing and business development with several DC-area technology companies, including AOL. This background sharpened her negotiation skills, market acumen, and attention to detail — giving her clients a strategic advantage whether buying, selling, relocating, or navigating new construction and investment opportunities. Today, she couples that corporate experience with her passion for community and her commitment to staying on the leading edge of technology trends.
“My goal is always to be a trusted resource for homeowners and buyers across McLean and North Arlington,” said Tennant Billy. “Unlisted gives people a new way to explore possibilities — whether they want insight into interest in their home or simply want to understand what’s out there. I’m excited to bring innovative tools and clarity to my clients and community.”
“Holly brings deep local knowledge, authenticity, and a client-first perspective that strengthens the entire Unlisted network,” said Katie Hill, founder and CEO of Unlisted. “We’re thrilled to have her on board.”
To learn more about Unlisted, visit UnlistedHomes.com. For Unlisted for Agents, visit UnlistedHomes.com/Agents.
To learn more about Holly Tennant Billy, visit her Unlisted Profile or Sotheby’s International Realty.
About Unlisted
Unlisted unlocks the potential in homes that aren’t for sale — yet. The company empowers home buyers to join the Waitlist for homes they love that aren’t for sale — in other words, unlisted. At the same time, homeowners collect a Waitlist of interested buyers for whenever the time comes to sell, giving everyone a head start. Unlisted also allows homeowners to control how their home is presented online; they can create a stunning up-to-date property profile that shows off the home’s best features and attracts more interest. With more time and more connection, Unlisted is a more human way to explore real estate that drives better outcomes for all. Selected for TechCrunch’s 2025 Startup Battlefield 200 as one of the top tech startups globally, and backed by HearstLab, Hearst Newspapers, VC414, StageNext Fund, and prominent angel investors, Unlisted gives buyers a competitive edge in today’s challenging housing market. For more information, visit UnlistedHomes.com.
Media Contact
Sophia Jacomet
sophia@unlistedinc.com
