Welcome to 1690 Castilleja Avenue, a rare offering in Palo Altos coveted Southgate neighborhood. Situated on an expansive 10,070 square foot lotone of the most premier parcels in the areathis property presents an incredible opportunity to remodel, expand, or build new. The existing 3-bedroom, 2-bath home spans 2,566 square feet across two levels, offering spacious living areas, abundant natural light, and exceptional flexibility for future customization. Whether youre an end-user seeking to personalize a classic residence or a developer looking for a prestigious project site, this property delivers unmatched potential. Enjoy the benefits of living in one of Palo Altos most desirable communities with access to top-rated schools: Walter Hays Elementary, Greene Middle, and Palo Alto High School (buyer to verify availability). Moments from Stanford University, vibrant California Avenue, and world-class tech campuses, this location blends convenience and lifestyle.

Total population of , which has changed by % since 1990.
The median age of the population is , while the median age of dwellings is .
Out of households, are families.