SEIGL Major Grading Permit; GRAD2023-00068

The SEIGL Major Grading Permit (GRAD2023-00068) authorizes the construction of a 949 square-foot manufactured accessory dwelling unit with a 600 square-foot deck and a new septic system. Located at 401 W. 17th Street in Paso Robles, California, the project is situated on a 6.57-acre parcel within the Residential Rural land use category of the Salinas River Sub-Area. The scope of work involves disturbing approximately 0.18 acres of land, requiring 105 cubic yards of cut and 425 cubic yards of fill. The project is administered by the County of San Luis Obispo and is categorically exempt from the California Environmental Quality Act (CEQA) under Class 3 and Section 15061(b)(3) as a second dwelling unit with minimal environmental impact. Compliance requirements include adherence to County Code Section 22.94.080 for sub-area standards, Section 22.10.040 for archaeological resources, and Title 19, Section 19.20.238 for utilities. Environmental mitigation includes specific replacement ratios for impacted or removed oak trees. The permit was approved on February 20, 2024, with the Notice of Exemption filed on July 29, 2026.