Solano County Zoning Code § 28.52 Marsh Preservation (mp) District
Solano County Zoning Code · 2026-06 edition · updated 2026-09-24 · Solano County
Cite as: Solano County Zoning Code § 28.52 · Text as of 2026-09-24
Subdivisions:
28.52.10 Marsh Preservation District 28.52.11 Purposes of Marsh Preservation District 28.52.20 Marsh Preservation District Land Uses and Permit Requirements 28.52.30 Marsh Preservation District Development Standards
28.52.10 Marsh Preservation District¶
This Section includes regulations for MP zoning district.
28.52.11 Purpose of Marsh Preservation District¶
This Section lists the uses of land that may be allowed within the Marsh Preservation (MP) zoning district, established by Section 28.13 (Districts Designated and Established). It also determines the type of land use approval required for each type of use and provides general standards for site development.
Marshes, wetlands, and certain adjacent grasslands within the County represent an area of significant aquatic and wildlife habitat and are an irreplaceable and unique resource to the people of the County, State, and the Nation. Therefore, the Board of Supervisors has determined it is in the interest of the County to preserve and enhance the quality and diversity of marsh habitats, within which marsh-oriented uses shall be encouraged to the exclusion of such other uses of land as may be in conflict with the long-term preservation and protection of marsh areas. The provisions of this Section shall be strictly interpreted to provide maximum protection to marsh areas.
28.52.20 Marsh Preservation District Land Uses and Permit Requirements¶
A. Allowed Uses and Permit Requirements
Table 28.52A identifies the land uses allowed by this Zoning Ordinance in the marsh preservation district and the land use permit required to establish each use. In addition to the land use permit required by Table 28.52A, special requirements may apply to certain uses.
B Marsh Development Permit Requirements
Any development within the Suisun Marsh, as defined by Section 29114 of the Public Resources Code, shall be subject to obtaining a marsh development permit pursuant to the Suisun Marsh Preservation Act of 1977 and as provided for in Section 28.104 of this Code. When a land use subject to a marsh development permit is proposed in both the Primary Management Area and Secondary Management Area, as defined in the Suisun Marsh Preservation Act of 1977, the land use shall be subject to a use permit covering the whole of the project.
(Revised 12/25)
930
Chapter 28
Zoning Regulations
C. Architectural Review
Architectural Approval may be required for certain uses, in compliance with Section 28.102 (Architectural Approval).
D. Building Permits
A building permit shall be required prior to any construction.
(Revised 7/23)
930.1
(Image not reproduced in this text.)
Chapter 28
Zoning Regulations
E. Land Use Regulations
Where the last column in Table 28.52A (Land Use Regulations) includes a section number, e.g. 28.70.10, 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. Provisions in other sections of this Zoning Ordinance may also apply.
F. Nonconforming Uses
Within the Suisun Marsh, as defined by Section 29101 of the Public Resources Code, uses established prior to 1977 that do not conform to the uses set forth in Table 28.52A shall be considered nonconforming uses under Section 28.114, except that nonsubstantial changes, alterations, and additions to nonconforming uses may be allowed within the existing established project footprint area subject to a marsh development permit pursuant to the Suisun Marsh Preservation Act of 1977 and as provided for in Section 28.104. The overall existing development area may not be expanded under these provisions. Development within the existing development area should minimize additional impervious surfaces. An adequate buffer should be established or maintained between the development areas and any water, wetlands, or other marsh habitat to protect the habitat from adverse environmental impacts. An erosion, sediment, and runoff control plan shall be prepared in accordance with Section 31.26, regulating grading, drainage, land leveling and erosion control. When the nonconforming use is located in both the primary management area and secondary management area, as defined by the Suisun Marsh Preservation Act of 1977, nonsubstantial changes, alterations, and additions to the nonconforming use shall be subject to a use permit covering the whole of the project.
G. Site Development and Other Standards
All uses shall comply with the provisions of Article IV of this chapter, relating to site development and other standards and beginning with Section 28.90, which includes standards for parking, signs, and other project elements.
Table 28.52A TABLE OF ALLOWED USES
| Table 28.52A TABLE OF ALLOWED USES | ||
|---|---|---|
| A = Allowed by right, AP = Administrative Permit, MUP = Minor Use Permit, UP = Use Permit, - - - = Prohibited |
||
| ALLOWED USES See Definitions Section 28.01 |
Permit Requirements MP(1) Zoning District |
Land Use Regulations See Section 28.70.10 |
| 28.71 AGRICULTURAL USES | ||
| A. CROP PRODUCTION AND GRAZING | ||
| Nonirrigated and noncultivated farming | A(2) | |
| Grazing | A(2) | |
| B. AGRICULTURAL PROCESSING USES | ||
| None allowed |
(Revised 1/23)
931
Chapter 28
Zoning Regulations
Table 28.52A TABLE OF ALLOWED USES (Continued)
| Table 28.52A TABLE OF ALLOWED USES (Continued) | ||
|---|---|---|
| A = Allowed by right, AP = Administrative Permit, MUP = Minor Use Permit, UP = Use Permit, - - - = Prohibited |
||
| ALLOWED USES See Definitions Section 28.01 |
Permit Requirements MP(1) Zoning District |
Land Use Regulations See Section 28.70.10 |
| C. ANIMAL FACILITIES AND OPERATIONS | ||
| None allowed | ||
| D. OTHER AGRICULTURAL OPERATIONS | ||
| Agricultural employee housing | UP | 28.71.40(A) & (B)(1) |
| 28.72 RESIDENTIAL USES | ||
| A. DWELLINGS | ||
| Primary dwelling(3) | A | 28.72.10(A) |
| B. TEMPORARY DWELLINGS | ||
| None allowed | ||
| C. ANIMAL FACILITIES INCIDENTAL TO A RESIDENCE | ||
| None allowed | ||
| D. HOME OCCUPATIONS, COTTAGE INDUSTRIES AND OTHER COMMERCIAL USES | ||
| None allowed | ||
| 28.73 RECREATION, EDUCATION, AND PUBLIC ASSEMBLY USES | ||
| A. RECREATION USES | ||
| Complementary commercial facility | UP | 28.73.10(A) |
| Marsh oriented recreation | UP | 28.73.10(A) |
| Public open space area | A | 28.73.10(A) |
| B. EDUCATION USES | ||
| Marsh education | UP | 28.73.20(A) |
| C. PUBLIC ASSEMBLY USES | ||
| None allowed | ||
| 28.74 RETAIL AND OFFICE USES | ||
| A. RETAIL USES | ||
| None allowed | ||
| B. OFFICE USES | ||
| Marsh research facility | UP | 28.74.20(A) |
| 28.75 TOURIST USES | ||
| None allowed |
(Revised 1/23)
932
Chapter 28
Zoning Regulations
Table 28.52A TABLE OF ALLOWED USES (Continued)
| Table 28.52A TABLE OF ALLOWED USES (Continued) | ||
|---|---|---|
| A = Allowed by right, AP = Administrative Permit, MUP = Minor Use Permit, UP = Use Permit, - - - = Prohibited |
||
| ALLOWED USES See Definitions Section 28.01 |
Permit Requirements MP(1) Zoning District |
Land Use Regulations See Section 28.70.10 |
| 28.76 COMMERCIAL SERVICE USES | ||
| None allowed | ||
| 28.77 INDUSTRIAL, MANUFACTURING, PROCESSING AND WHOLESALE USES | ||
| None allowed | ||
| 28.78 COMMUNICATION, INFRASTRUCTURE AND SERVICE USES | ||
| A. COMMUNICATION USES | ||
| None allowed | ||
| B. INFRASTRUCTURE USES | ||
| Battery energy storage system | - - - | |
| Commercial wind turbine generator | - - - | |
| Dredging of minerals and natural resources | UP | 28.78.20(A) |
| Noncommercial wind turbine | ||
| 100 feet or less in height | A | 28.80 |
| Over 100 feet in height | - - - | |
| Gas well(4), natural gas storage | UP | 28.78.20(A) & (B)(7) |
| Pipeline, transmission or distribution line in R.O.W. |
A | 28.78.20(A) & (B)(8) |
| Utility facilities or infrastructure, outside of R.O.W. |
UP | 28.78.20(A) & (B)(9) |
| C. PUBLIC SERVICE USES | ||
| Public service facility | UP | 28.78.30(A) & (B)(4) |
| D. TEMPORARY CONSTRUCTION AND INFRASTRUCTURE | ||
| Temporary facility for the transfer of material from shore to barge |
UP | 28.78.40(A) |
| 28.79 RESOURCE PROTECTION USES | ||
| Conservation or mitigation bank | UP | 28.79 |
| Growing of plants and natural feed important to wildlife habitat |
A | 28.79 |
| Restoration of tidal, managed, and seasonal wetlands using dredge sediments |
UP | 28.79 |
(Revised 12/25)
933
Chapter 28
Zoning Regulations
Notes:
Any development within the Suisun Marsh, as defined by Section 29114 of the Public Resources Code, shall be subject to obtaining a marsh development permit pursuant to the Suisun Marsh Preservation Act of 1977, and as provided for in Section 28.104.
Management of wetlands and agricultural operations, with emphasis on grain and hay crop production, pasture, grazing, and the growing of plants and natural feed important to wildlife habitat.
Buildings and uses clearly accessory or incidental to any permitted use located on the premises, including a one-family dwelling or a manufactured dwelling, barns, private stables, sheds, and other associated buildings.
Oil wells are not permitted in the Suisun Marsh Primary and Secondary Management Areas.
(Ord. No. 1764, §12 (Exh. J); Ord. No. 1788, §2 (Att. A); Ord. No. 1797, §§2, 3 (Exh. 3); Ord. No. 1840, §15; Ord. 1864, §12)
(Revised 12/25)
934
Chapter 28
Zoning Regulations
28.52.30 Marsh Preservation District Development Standards¶
Subdivisions, new land uses, main buildings including primary dwellings, 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 28.52B.
| TABLE 28.52B DEVELOPMENT STANDARDS FOR MAIN BUILDING, ACCESSORY STRUCTURES, AND USES |
|
|---|---|
| MAIN BUILDING | |
| Minimum Lot Area | 250 acres |
| Setbacks Front Sides (each) Rear Between structures |
Ten feet; unless otherwise indicated by building lines on the zoning maps. Ten feet; unless otherwise indicated by building lines on the zoning maps. Ten feet; unless otherwise indicated by building lines on the zoning maps. 10 feet |
| Height limit | Thirty-five feet; provided, that additional height may be permitted for non-dwelling structures, including windmills, silos, and private water tanks; and provided further, that no such structure shall exclude the heights allowed in Section 28-99 of this code, if located in an airport flight obstruction area. |
| ACCESSORY STRUCTURES AND USES | |
| Setbacks | Accessory buildings shall not be less than sixty feet from the front property line nor less than twenty feet from any side or rear property line, nor less than thirty feet from any dwelling unit on the property. |
| OTHER STANDARDS | |
| Parking Requirements | Parking shall be provided in conformance with the parking standards in Section 28.94 |
| Signs | All signs shall comply with the sign requirements in Section 28.96 |
(Ord. No. 1732, §4; Ord. No. 1817, §§24, 25)
(Revised 7/23)
935
Chapter 28
Zoning Regulations
Explained in plain English
Solano County guides that cite this page.
Get a plain-English answer with a citation back to this text.
Ask AI about this code