318 S Grant St 1a – Bathroom 1 (A) (more pictures) 318 S Grant St 1a, San Mateo 94401 Bedrooms: 2 Bathrooms: 2 Living space: 2,055 sq.ft. Lot size: 18,719 sq.ft. Year built: 2003 Schools: Sunnybrae Elementary, Borel Middle, San Mateo High 318 S Grant St 1a Virtual Tour San Mateo Homes For Sale San Mateo Real Estate San Mateo Real Estate Market Trends