Meet James

Since stepping into the real estate scene in 2002, James Kastner has become synonymous with innovation and strategic thinking. Leading marketing strategies, a knack for genuine connection, and deep market knowledge have enabled James to orchestrate over $400 million in transactions. While James represents clients transacting across the City, he specializes in San Francisco’s Downtown districts. James artfully navigates the nuances of the area’s signature high-rise and boutique residential buildings. Find James leading tours throughout the Financial District, South of Market, the East Cut (formerly Rincon Hill), the Arts District in Yerba Buena, Mission Bay, South Park, and more.

Buyer Representation

Local, national, and international buyers searching for property appreciate James’ commitment to understanding their needs and his careful consideration of near- and long-term goals. During the offer and negotiation process, buyers benefit from James’ keen ability to analyze values and trends, to successfully present offers at fair market value

World-Class Representation for Sellers 

Sellers and developers alike respect James’ honest and direct approach to client representation. Analysis of data combined with years of experience of the market-share leader for the sale of condominiums enables James Kastner and the Gregg Lynn Team to achieve the highest possible price for sellers.

James stands at the intersection of tradition and innovation. James’ career in real estate is not just about transactions — it's about pioneering uncharted territories. With a commitment to redefining standards and a deep understanding of the market's nuances, James continues to lead and inspire in an industry characterized by constant change.

Beyond real estate, James’ story includes multiple companies built and sold, time as an ex-pat in both the Netherlands and Mexico, the stylish restoration of a historic Dutch building (check it out), and service to the U.S. Navy as a Yeoman Petty Officer Second Class.