Solano County Zoning Code § 28.43 Industrial - Agricultural Service (I-AS) District
Solano County Zoning Code · 2026-06 edition · updated 2026-09-24 · Solano County
Cite as: Solano County Zoning Code § 28.43 · Text as of 2026-09-24
This Section lists the uses of land that may be allowed within the Industrial - Agricultural Service (I-AS) zoning district. It also determines the type of land use approval required for each use, and provides general standards for site development.
(Ord. No. 1735, §3 (Exh. 1))
(Revised 3/26)
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28.43.10 Purpose of the Industrial - Agricultural Service (I-AS) District¶
The purpose of the Industrial - Agricultural Service (I-AS) District is to provide for the development of agricultural related industry in the agricultural regions of the County.
(Ord. No. 1735, §3 (Exh. 1))
28.43.20 Industrial - Agricultural Service District Uses and Permit Requirements¶
A. Allowed Uses and Permit Requirements
Table 28-43A identifies the land uses allowed by this Zoning Ordinance in the Industrial - Agricultural Service (I-AS) district and the land use permit required to establish each use. In addition to the land use permit required by Table 28-43A, special requirements may apply to certain uses.
B. Architectural Approval
Architectural Approval may be required for certain uses in compliance with Section 28.102 (Architectural Approval) and in conformance with the Design Guidelines for the Northeast Dixon Agricultural Service District.
C. Building Permits
A building permit may be required prior to any construction.
D. Land Use Regulations
All uses in the Industrial - Agricultural Service (I-AS) District are subject to the land use standards in Article III of this Chapter. Where the last column in Table 28-43A (Table of Allowed Uses) includes a section number, e.g. 28.71.10, the zoning regulations in the referenced section apply to the use. Where the last column includes a chapter number, e.g. Chapter 13.6, the regulations in the referenced Solano County Code apply to the use.
E. Site Development and Other Standards
All uses shall comply with the provisions of Section 28.43.30 and Article IV, Section 28-90 Site Development and Other Standards, which includes standards for parking, signs, and other project elements.
(Revised 12/25)
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F. Table 28.43A Table of Allowed Uses
TABLE 28.43A TABLE OF ALLOWED USES
| F. Table 28.43A Table of Allowed Uses TABLE 28.43A TABLE OF ALLOWED USES |
||
|---|---|---|
| A= Allowed by right, AP= Administrative Permit, MUP= Minor Use Permit, UP= Use Permit, E= Exempt, - - - = Prohibited |
||
| ALLOWED USES* See Definitions Section 28.01 |
Permit Required | Land Use Regulations** **See Section 28.70.10 |
| 28.71 AGRICULTURAL USES | ||
| A. CROP PRODUCTION AND GRAZING |
||
| Crop production | A | 28.71.10A |
| Grazing | A | 28.71.10A |
| B. AGRICULTURAL PROCESSING USES |
||
| Agricultural processing | A | 28.71.20(A) & (B)(1) |
| Aquaculture | A | 28.71.20(A) |
| Nurseries | A | 28.71.20(A) & (B)(2) |
| Winery | A | 28.71.20(A) & (B)(3); 28.73.30(A) |
| C. ANIMAL FACILITIES AND OPERATIONS |
||
| Confined animal facility | - - - | |
| Fowl and poultry ranch | - - - | |
| Pastured Poultry | - - - | |
| Hog Farm | - - - | |
| Slaughterhouse | A | 28.71.30(A) & (B)(5) |
| Livestock Auction Yard | A | 28.71.40(A) & (B)(6) |
| D. OTHER AGRICULTURAL OPERATIONS |
28.71.40 | |
| Agricultural employee housing | - - - | |
| 28.72 RESIDENTIAL USES | ||
| A. DWELLINGS |
||
| Primary Dwelling | - - - | |
| Secondary dwelling | - - - | |
| Second Kitchen | - - - | |
| B. TEMPORARY RESIDENTIAL USES |
||
| Security quarters for a construction site (commercial coach, manufactured home or recreational vehicle) |
AP | 28.72.20(A) & (B)(1) |
(Revised 12/25)
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TABLE 28.43A TABLE OF ALLOWED USES (Continued)
| TABLE 28.43A TABLE OF ALLOWED USES (Continued) | ||
|---|---|---|
| A= Allowed by right, AP= Administrative Permit, MUP= Minor Use Permit, UP= Use Permit, E= Exempt, - - - = Prohibited |
||
| ALLOWED USES* See Definitions Section 28.01 |
Permit Required | Land Use Regulations** **See Section 28.70.10 |
| Temporary Manufactured Home Storage | AP | 28.72.20(A) & (B)(4) |
| C. AGRICULTURAL AND ANIMAL FACILITIES INCIDENTAL TO A RESIDENCE |
28.72.30 | |
| None Allowed | - - - | |
| D. OTHER RESIDENTIAL USES |
28.72.40 | |
| Cottage Industries | ||
| Type I | - - - | |
| Type II | - - - | |
| Home occupations | ||
| Type I | - - - | |
| Type II | - - - | |
| 28.73 RECREATION, EDUCATION AND PUBLIC ASSEMBLY USES |
See Section 28.73 | |
| A. RECREATION USES |
28.73.10 | |
| None Allowed | - - - | |
| B. EDUCATION USES |
28.73.20 | |
| Agricultural education | ||
| Minor Facility | A | 28.73.20(A) & (B)(1) |
| Major Facility | AP | 28.73.20(A) &(B)(1) |
| See exemption for 4-H activities | ||
| C. PUBLIC ASSEMBLY USES |
28.73.30 | |
| None Allowed | - - - | |
| 28.74 RETAIL AND OFFICE USES | See Section 28.74 | |
| A. RETAIL USES |
28.74.10 | |
| Farm Equipment Sales | A | 28.74.10(A) & (B)(4) |
| Farm/ |
A | 28.74.10(A) & (B)(5) |
| Agricultural Commercial Kitchen | A | 28.76.10(A) & (B)(1) |
| Farm Stand |
(Revised 12/25)
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TABLE 28.43A TABLE OF ALLOWED USES (Continued)
| A= Allowed by right, AP= Administrative Permit, MUP= Minor Use Permit, UP= Use Permit, E= Exempt, - - - = Prohibited |
||
|---|---|---|
| ALLOWED USES* See Definitions Section 28.01 |
Permit Required | Land Use Regulations** **See Section 28.70.10 |
| 1,000 square feet or less in size | A | 28.74.10(A) & (B)(8) |
| Between 1,000 and 2,500 square feet in size |
AP | |
| Greater than 2,500 square feet in size | MUP | |
| Certified Farmers Market | ||
| Small Certified Farmers Market | A | 28.75.20(A) & (B)(2) |
| Medium Certified Farmers Market | AP | |
| Large Certified Farmers Market | MUP | |
| Commercial auctions and agricultural equipment sales |
A | 28.71.40(A) & (B)(2) |
| B. OFFICE USES |
||
| Agricultural Research Facilities | ||
| Small (less than 20,000 sq. ft.) | A | 28.74.20(A) & (B)(1) |
| Medium (between 20,000 and 40,000 sq. ft.) |
A | 28.74.20(A) & (B)(1) |
| Large (more than 40,000 sq. ft.) | MUP | 28.74.20(A) & (B)(1) |
| 28.75 TOURIST USES | See Section 28.75 | |
| A. AGRITOURISM |
28.75.10 | |
| Agricultural homestay | - - - | 28.75.10(A) & (B)(1) |
| Agritourism Facility | MUP | 28.75.10(A) & (B)(2) |
| B. TEMPORARY AGRITOURISM |
||
| Amusement and entertainment uses | - - - | |
| Certified Farmers Market | ||
| Small Certified Farmers Market | A | 28.75.20(A) & (B)(2) |
| Medium Certified Farmers Market | MUP | 28.75.20(A) & (B)(2) |
| Large Certified Farmers Market | UP | 28.75.20(A) & (B)(2) |
| Seasonal sales lot | AP | 28.75.20(A) & (B)(3) |
| Temporary Agritourism Event | AP | 28.75.20(A) & (B)(4) |
| 28.76 COMMERCIAL SERVICE USES | See Section 28.76 | |
| A. AGRICULTURAL SERVICES |
28.76.10 | |
| Commercial Farm Equipment fabrication and repair |
A | 28.76.10(A) |
(Revised 12/25)
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TABLE 28.43A TABLE OF ALLOWED USES (Continued)
| TABLE 28.43A TABLE OF ALLOWED USES (Continued) | ||
|---|---|---|
| A= Allowed by right, AP= Administrative Permit, MUP= Minor Use Permit, UP= Use Permit, E= Exempt, - - - = Prohibited |
||
| ALLOWED USES* See Definitions Section 28.01 |
Permit Required | Land Use Regulations** **See Section 28.70.10 |
| Agricultural Recycling and Composting | MUP | 28.76.10(A) & (B)(3) |
| Agricultural Trucking Services and Facilities |
A | 28.76.10(A) & (B)(2) |
| Agricultural Warehousing and Storage | A | 28.76.10(A) |
| Agricultural Equipment Storage Yard | UP | 28.76.10(A) |
| Custom Farm Services | A | 28.76.10(A) |
| B. COMMERCIAL SERVICES |
28.76.20 | |
| Large Animal Hospital or Veterinary Clinic | A | 28.76.20(A) & (B)(1) |
| 28.77 INDUSTRIAL, MANUFACTURING, PROCESSING AND WHOLESALE USES2 |
See Section 28.77 | |
| A. INDUSTRIAL, MANUFACTURING AND PROCESSING USES |
28.77.10 | |
| None Allowed | - - - | |
| B. WHOLESALE USES |
28.77.20 | |
| None Allowed | - - - | |
| 28.78 COMMUNICATION, INFRASTRUCTURE AND SERVICE USES |
See Section 28.78 | |
| A. COMMUNICATION USES |
28.78.10 | |
| Wireless communication facilities | ||
| Co-locations | MUP | 28.81 |
| New towers | UP | 28.81 |
| B. INFRASTRUCTURE USES |
28.78.20 | |
| Battery energy storage system | UP | 28.83 |
| Commercial solar energy facility | - - - | |
| Commercial wind turbine generators | UP | 28.80 |
| Non-commercial wind turbines | ||
| 100 feet or less in height | A | 28.80 |
| Over 100 feet in height | MUP | 28.80 |
| Pipelines, transmission and distribution lines in R.O.W. |
A | 28.78.20(A) and (B)(8) |
| Utility facilities or infrastructure, outside of R.O.W. |
UP | 28.78.20(A) and (B)(9) |
(Revised 12/25)
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TABLE 28.43A TABLE OF ALLOWED USES (Continued)
| TABLE 28.43A TABLE OF ALLOWED USES (Continued) | ||
|---|---|---|
| A= Allowed by right, AP= Administrative Permit, MUP= Minor Use Permit, UP= Use Permit, E= Exempt, - - - = Prohibited |
||
| ALLOWED USES* See Definitions Section 28.01 |
Permit Required | Land Use Regulations** **See Section 28.70.10 |
| C. SERVICE USES |
28.78.30 | |
| Public Service Facility | UP | 28.78.30(A) and (B)(4) |
| D. TEMPORARY CONSTRUCTION AND INFRASTRUCTURE |
28.78.40 | |
| Meteorological Towers, 100 feet or less in height |
AP | 28.78.20(A) and (B)(6) |
| Meteorological Towers, greater than 100 feet in height |
MUP | 28.78.20(A) and (B)(6) |
| 28.79 RESOURCE CONSERVATION USES | See Section 28.79 | |
| Mitigation Banks | - - - |
(Ord. No. 1735, §3 (Exh. 1); Ord. No. 1764, §10 (Exh. H); Ord. No. 1860, §5; Ord. No. 1864, §10)
28.43.30 Industrial - Agricultural Service District (I-AS) General Development Standards¶
- A. General site and building standards. Subdivisions, new land uses, main buildings, and alterations to existing land uses and buildings, shall be designed, constructed, and/or established in compliance with the applicable development standards delineated or referenced in Table 28.43B.
TABLE 28.43B
| Development Standards for Main Building, Accessory Dwelling | |
|---|---|
| I-AS District | |
| PRIMARY BUILDING | |
| Minimum Lot Size | 5 acres4 |
| Setbacks | |
| Front | 30 feet, but at least 50 feet from the street centerline and unless otherwise indicated by building lines on the zoning maps |
| Sides (each) | 20 feet |
| Rear | 25 feet |
| Between structures | 10 feet |
| Height limit | 35 feet, and as allowed by Section 28-93, special regulations |
| Height limit for agricultural processing uses |
50 feet, and as allowed by Section 28-93, special regulations |
(Revised 12/25)
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(1) Other setbacks may be required for specific uses listed in Table 28-43A, as provided elsewhere in this chapter.
(2) Other separation between structures may be required by County Building Code.
(3) The actual number of parcels allowed is determined through the applicable subdivision process, based on specific site characteristics and potential environmental impacts, and there is no guarantee that the maximum possible number may be achieved.
(4) The minimum parcel size may be reduced provided a community or public sewer system is established to serve the parcel. Parcels larger than five acres may be required, depending on service capacity of the parcel for water, drainage and sewers. A use permit is required to reduce the minimum parcel size to less than five acres, but a parcel may not be less than one acre.
- B. Accessory buildings and structures. New accessory buildings and other structures, including alterations to existing accessory buildings and other structures, shall be designed, constructed, and/or established in compliance with the applicable development standards in Section 28.71.10(B)(1) and in Table 28.43C below.
| Table 28.43C Development Standards for Accessory Buildings |
|
|---|---|
| AS District | |
| AGRICULTURAL ACCESSORY BUILDINGS(1) | |
| Setbacks | |
| Attached | An accessory building attached to the main building shall comply with the setback requirements for the main building |
| Detached | |
| Front | 60 feet or on the rear 50% of the lot |
| Sides (each) | 20 feet |
| Rear | 20 feet |
| Between structures | 10 feet from any main building on the same lot |
| Height limit | 35 feet, and as allowed by 28-93, General Height Regulations and Exceptions |
| Parking | As required by 28-94, Parking Requirements |
| Signs | See Section 28.96, Signs |
Notes:
(1) Other setbacks may be required for specific uses listed in Table 28.43A, as referenced.
(2) Other separation between structures may be required by County Building Code.
(Ord. No. 1735, §3 (Exh. 1); Ord. No. 1749, §3 (Exh. 3))
(Revised 8/15)
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