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Title 17

Chapter 17.04 — ZONING DISTRICTS ESTABLISHED

Rio Vista Zoning Code · 2026-06 edition · updated 2026-07-06 · Rio Vista

§ 17.04.010. Districts.

The several districts established and into which the city is divided, are designated as follows:

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Housing Units Per Gross
Symbol District Acre
R-1 Residential low density 4—7
R-2 Residential medium density 8—14
R-3 Residential high density 15—28
R-4 Residential high density 15—28
C-1 Neighborhood commercial
C-2 Community commercial
C-3-I General and service commercial and/or
industrial
C-H Highway commercial
I-P-I Industrial park and/or industrial
B-P Business park
M-G General manufacturing industry
I-R Industrial reserve
O-A-R Open area resort
F-W Floodway
P-L Park lands
D-R Drill reservation
R-E-1 Residential estate one acre
C-2-A Airport commercial
A-B Army base
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(Prior code Appendix B § 301(A); Ord. 664 § 2, 2012)

§ 17.04.020. District boundaries and zoning map.

The aforesaid districts are established insofar as the designations, locations, and boundaries thereof are set forth and indicated in this title and are shown on that certain map "City of Rio Vista Zoning Map," which is on file in the offices of the city administrator.

Wherever any uncertainty exists as to the boundary of a district as shown on the zoning map, the following regulations shall control:

  • A. Where a boundary line is indicated as following a street or alley, it shall be construed as following the right-of-way line thereof.

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City of Rio Vista, CA

ZONING

§ 17.04.020

§ 17.04.050

  • B. Where a boundary line follows or coincides approximately with a lot line or a property ownership line, it shall be construed as following the lot line or property ownership line.

  • C. Where a boundary line is not dimensioned and is not indicated as following a street or alley and does not follow or coincide approximately with a lot line or property ownership line, the boundary line shall be determined by the use of the scale designated on the zoning map.

  • D. Where further uncertainty exists, the city planning commission, upon written application or on its own motion, shall determine the location of the boundary in question, giving due consideration to the location indicated on the zoning map, and the objectives of the zoning ordinance and the purposes set forth in the district regulations.

Areas on the zoning map being located outside of the legal boundaries of the city are shown for illustrative purposes only.

(Prior code Appendix B § 301(B))

§ 17.04.030. Zoning of newly annexed territory.

All territory hereafter annexed to the city shall be zoned and classified as a part of that zoning district of the city specified by the city's general plan at the time of annexation thereof. (Prior code Appendix B § 301(C))

§ 17.04.040. Conformity required.

  • A. No site or structure shall be used or designated for use for any purpose or in any manner other than in conformity with the regulations for the district in which the site or structure is located.

  • B. No structure shall be erected and no existing structure or use shall be moved, altered, or enlarged except in conformity with the regulations for the district in which the structure or use is located.

  • C. No yard space provided in compliance with the regulations for the district in which it is located shall be deemed to provide a yard space for any other structure, and no yard or usable open space on one site shall be deemed to provide a yard space or usable open space for a structure on any other site.

  • D. No yard, court, or usable open space shall be used, encroached upon, or reduced in any manner except in conformity with the regulations for the district in which the yard, court, or open space is located.

  • E. No site held in one ownership at the time of the adoption of the ordinance codified in this title or at any time thereafter shall be reduced in any manner below the minimum area, frontage, width, or depth prescribed for the district in which the site is located.

  • F. This section is subject to the exemptions of Section 17.66.040. (Prior code Appendix B § 301(D))

§ 17.04.050. Uses not authorized are prohibited.

Any land use not specifically authorized or identified in the zoning code is prohibited. Any land use or business specifically prohibited by any other provision of the Rio Vista Municipal Code

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City of Rio Vista, CA

RIO VISTA CODE

§ 17.04.050

§ 17.04.050

is a prohibited use under the zoning code. (Ord. 659 § 2, 2011)

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City of Rio Vista, CA

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Contents — Rio Vista Zoning Code
Rio Vista Zoning Code
  1. Title 17
    Overview
    1. Chapter 17.27 — A-B ARMY BASE DISTRICT
    2. Chapter 17.58 — OVERLAY DISTRICTS AND PLANNED UNIT DEVELOPMENTS
    3. Chapter 17.02 — INTRODUCTORY PROVISIONS AND DEFINITIONS
    4. Chapter 17.04 — ZONING DISTRICTS ESTABLISHED
    5. Chapter 17.06 — SCHEDULE OF DESIGN AND USE REQUIREMENTS
    6. Chapter 17.08 — R-1 RESIDENTIAL LOW DENSITY DISTRICT
    7. Chapter 17.10 — R-E-1 RESIDENTIAL ESTATE ONE ACRE DISTRICT
    8. Chapter 17.12
    9. Chapter 17.14 — R-3 RESIDENTIAL HIGH DENSITY DISTRICT
    10. Chapter 17.16 — R-4 RESIDENTIAL HIGH DENSITY DISTRICT
    11. Chapter 17.18 — C-1 NEIGHBORHOOD COMMERCIAL DISTRICT
    12. Chapter 17.20 — C-2 COMMUNITY COMMERCIAL DISTRICT
    13. Chapter 17.22 — C-2A AIRPORT COMMERCIAL DISTRICT
    14. Chapter 17.24
    15. Chapter 17.26 — C-H HIGHWAY COMMERCIAL DISTRICT
    16. Chapter 17.27 — A-B ARMY BASE DISTRICT
    17. Chapter 17.28 — I-P-I INDUSTRIAL PARK AND/OR INDUSTRIAL DISTRICT
    18. Chapter 17.29 — B-P BUSINESS PARK
    19. Chapter 17.30 — M-G GENERAL MANUFACTURING INDUSTRY DISTRICT
    20. Chapter 17.32 — I-R INDUSTRIAL RESERVE DISTRICT
    21. Chapter 17.34 — F-W FLOODWAY DISTRICT
    22. Chapter 17.36 — O-A-R OPEN AREA RESORT DISTRICT
    23. Chapter 17.38 — P-L PARK LAND DISTRICT:
    24. Chapter 17.40 — D-R DRILL RESERVATION DISTRICT
    25. Chapter 17.42 — D-W DOWNTOWN WATERFRONT DISTRICT
    26. Chapter 17.44 — GENERAL DESIGN AND USE REQUIREMENTS
    27. Chapter 17.46 — MOBILEHOME PARKS
    28. Chapter 17.48 — OFF-STREET PARKING AND LOADING
    29. Chapter 17.52 — NOISE STANDARDS
    30. Chapter 17.56 — SIGNS
    31. Chapter 17.58 — OVERLAY DISTRICTS AND PLANNED UNIT DEVELOPMENTS
    32. Chapter 17.60 — SITE AND ARCHITECTURAL REVIEW
    33. Chapter 17.62 — PLAN LINES AND SETBACK LINES
    34. Chapter 17.64 — NATURAL GAS OPERATIONS
    35. Chapter 17.66 — ADMINISTRATION AND ENFORCEMENT
    36. Chapter 17.68 — WATER CONSERVATION AND LANDSCAPING
    37. Chapter 17.70 — CANNABIS AND HEMP REGULATIONS
    38. Chapter 17.72 — PUBLIC ARTS
    39. Chapter 17.74 — EMERGENCY SHELTERS/TRANSITIONAL HOUSING FOR TH…
    40. Chapter 17.78 — DENSITY BONUS
    41. Chapter 17.80 — OUTDOOR DINING
    42. Chapter 17.84 — PORTABLE STORAGE CONTAINERS AND SHIPPING CONTA…

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