Transformational Real Estate


From residential real estate sales to investments, Donna understands what it takes to render quality representation in today’s competitive marketplace. With her over 25+ years of corporate marketing experience and real estate expertise, she has earned a stellar reputation for her full-service, innovative and dynamic approach to real estate, creating a recognized and proven brand in the Silicon Valley. Working with everyone from luxury home buyers and sellers, to investors, to first time homebuyers, Donna is committed to helping her clients fulfill their real estate goals.

Donna also believes in giving back to her community. She currently is:

Commissioner for the City of San Jose Seniors Commission.

The Senior Citizens Commission studies, reviews, evaluates and makes recommendations to the City Council on any matters affecting seniors in the City of San Jose, including health, education, employment, housing transportation, and recreation.

Executive Board Member, Vice President for NAHREP Silicon Valley 

 (National Association of Hispanic Real Estate Professionals) 

NAHREP's mission is to advance sustainable homeownership by....

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"Fantastic agent. We were first time home buyers and she was very patient with us as we took almost 6 months to find our ideal choice. We went back and forth on a lot of options and Donna was very cooperative to give us her honest opinions on the different homes we looked at. She is very well versed with the SF Bay area housing market and could give us good price estimates for the properties we expressed interest keeping aside her own interests always. She was there physically present during all the steps of home buying, was patient enough to explain us every step and in details, and made us feel the whole home buying experience very easy. As a buyer, we are always cautious if our agent is giving us the best price estimate and I felt the confidence working with Donna from Day 1. Will highly recommend Donna to all prospective clients."



Image by Noah Buscher
Willow Glen
Quiet community filled with trees and an active downtown to provide an entertaining experience.
Home of the Pruneyard Shopping Center, this city has quiet neighborhoods and an active nightlife downtown.
Blossom Valley
A suburban area, perfect for raising your children.
Los Gatos
Active town with many shopping areas contrasted by just as many biking trails in the mountains.
Residential neighborhood surrounded by vast hills including the Sierra Azul Preserve.
In the heart of Silicon Valley, home to several Fortune 500 companies, and includes many leisure opportunities.
Mountain View
Housing some of the finest recreational sights and several annual events for an active and sporty community
Santa Clara
Home to many high tech companies and attractions to provide an. entertaining experience. 


Modern Interior Design


Donna Castillo is devoted to assisting you with all of your real estate needs.