Rare infill development opportunity on the last remaining 0.70-acre parcel of historic El Nido Farm at 19251 San Ramon Valley Blvd, San Ramon. Zoned RM (Medium Density Residential) within the Westside Specific Plan area, with a General Plan Medium Density land use designation allowing 6 to 15 dwelling units per acre. Per San Ramon Municipal Code, the RM zone permits duplexes, townhomes, cluster housing with landscaped open space, or single-family dwellings at 6 to 14 units per net acre. Minimum new lot size: 3,500 sq ft. No existing home building entitlements in place — this is a raw land opportunity for a builder to pursue their own approvals. Site is flat, approximately 0.70 acres, with frontage on San Ramon Valley Blvd. Within 5 miles: population 80,384, average household income $190,412. Less than one hour from Oakland and San Francisco. Strong demand in this affluent, family-oriented community surrounded by golf, hiking trails, parks, and top-rated schools.