| 1. New single-family buildings, multi-family buildings, detached Accessory Dwelling Units, or habitable accessory buildings. |
| 2. Commercial buildings, industrial buildings, or critical facilities. |
| 3. All two (or more) story buildings whether habitable or non-habitable, regardless of square footage. |
| 4. A habitable or non-habitable building which includes a mezzanine. |
| 5. Additions to any of the above which are: located on slopes greater than 20%; located on fill; located in an area of County GIS mapped expansive soils or potential liquefaction (mapped as moderate to very high); or located in a FEMA designated flood plain, floodway or a coastal high hazard zone. |
| 6. Additions to single-family buildings, multi-family buildings, or habitable accessory buildings greater than 500 square feet require a soils report. Single-story additions, two-story additions, and second story additions of 500 square feet or less do not require a soils report, and may also be exempted from addressing mapped expansive soils and/or potential liquefaction (mapped as moderate to very high). |
| 7. Non-habitable buildings over 1,000 square feet. |
| 8. Additions to a commercial buildings, industrial buildings, or critical facilities greater than 250 square feet. |
| 9. Modification, reconstruction or replacement of 65% the major structural components consisting of the foundation, floor framing, exterior wall framing, and roof framing of an existing habitable structure within any consecutive five-year period, or modification, reconstruction or replacement of 50% of the major structural components of an existing critical structure or facility, as defined by ASCE/SEI Standards, within any consecutive five-year period, whether the work is done at one time or as the sum of multiple projects. |
| 10. The addition of habitable space to any building, where the addition increases the habitable space by more than 50% over the existing habitable space, measured in square feet. |
| 11. Additions of any size to a building that is located on a coastal bluff, dune, or in the coastal hazard area, that extends the existing building in a seaward direction. |
| 12. Installation of a new foundation for a habitable building. |
| 13 The repair, replacement, or upgrade of an existing foundation of a habitable building that affects more than 50% of the foundation (measured in linear feet for perimeter foundations, square feet for slab foundations, or 50% of the total number of piers), or an addition to an existing foundation that adds more than 50% of the original foundation area, whether the work is performed at one time or as the sum of multiple projects during the life of the building. |
| 14. Any change of use from non-habitable to habitable use, according to the definition of “habitable” found in Section 16.10.040 of the Santa Cruz County Code, or a change of use from any noncritical facility to a critical facility. |
| 15. Any alteration of any building posted “Unsafe to Occupy” due to geologic hazards. |
| 16. Retaining walls greater than 4 feet in height, retaining walls that function as a part of a landslide repair, sea walls, or gravity walls. |
| 17. Bridges or water tanks greater than 10,000 gallons. |
| 18 Land divisions or coastal protection structures. |
| 19. Above ground commercial storage facilities for hazardous or flammable materials. |
| 20. Proposed building sites or access roadways located on property having undocumented or unpermitted grading (such as log landings, logging roads or prior unauthorized grading). |
| 21. Grading with cuts or fills over three feet in height located within five feet (horizontally) of a property line or grading that has the potential to cause instability or other grading related impacts to adjacent property. |
| 22. Access driveways or roadways that include fill greater than 2 feet. |
| 23. Grading on slopes greater than 20%. |
| 24. Creation of cut or fill slopes five feet or greater in height related to slope stabilization, landslide repairs, or streambank protection. |
| 25. Grading activities where there is evidence of high groundwater or spring activity. |
| 26. Any portion of development located within a FEMA floodplain or floodway. |
| 27. Any project or structure required by the current California Building Code to have a geotechnical report. |
| 28. Any other project deemed by Planning Division Civil Engineering staff or the County Geologist that a geotechnical report is required to ensure the integrity of the proposed work. |