Distinctive homes.
Discerning service.
Let's make your next move your best one yet
For nearly two decades, Sonja Coffee has guided Southern California families and investors through the most meaningful real estate decisions of their lives — with discretion, precision, and an unwavering eye for excellence.
A refined approach to Southern California real estate.
Sonja built her practice on a simple belief: every transaction is personal. From first-time buyers to seasoned investors, her clients return — and refer — because of the calm expertise, candid counsel, and quiet confidence she brings to every conversation.
Headquartered in Upland and serving the Inland Empire, Sonja represents homes that range from cherished family residences to architectural showpieces — each marketed with editorial care.
Continue ReadingThoughtful representation, end to end.
Luxury Listings
Editorial-grade marketing, professional photography, and a curated buyer network that elevates every property.
Buyer Representation
Discreet, strategic guidance — from off-market opportunities to negotiation and close.
Relocation & Investment
Deep local intelligence across Upland, Claremont, Rancho Cucamonga, and the Inland Empire.
"Sonja made the entire process feel effortless. Her market knowledge, professionalism, and genuine care for our family set her apart from any agent we've worked with."
The Martinez Family · Upland
Ready to make your move?
Whether you're listing a home, searching for the right one, or simply exploring the market — start with a private, no-pressure consultation.