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Title 18 — ZONING

Chapter 18.01 — ADOPTION, PURPOSES, AND ENFORCEMENT

Palo Alto Municipal Code · 2026-09 edition · updated 2026-09-29 · Palo Alto

18.01.010 Adoption of Zoning Map and Zoning Regulations

This title establishes comprehensive zoning regulations for the city, which regulations shall consist of the following:

(a) A map, or set of maps, known as the zoning map, establishing and delineating various classes of districts within the incorporated territory of the city; and

(b) Regulations, known as the zoning regulations, governing the use of land and the placement of buildings and improvements within the various classes of districts.

The zoning map and zoning regulations shall govern the use of land, including the construction, alteration, movement, replacement, or maintenance of buildings; the conduct of residential, commercial, industrial, and public service activities; the height, bulk, and placement of buildings and uses on each site; the provision of open space, amenities, off-street parking and loading; the relationships between buildings and uses on adjoining sites or within adjoining classes of districts; and such further aspects of land use and development as are appropriate to attain the purposes of this title.

(Ord. 3048 (part), 1978)

18.01.020 Purposes

The purposes of this title shall be to promote and protect the public health, safety, peace, morals, comfort, convenience, and general welfare, including the following more particularly specified purposes:

(a) To further, promote, and accomplish the objectives, policies, and programs of the Palo Alto Comprehensive Plan;

(b) To lessen congestion and assure convenience of access; to secure safety from fire, flood, and other dangers; to provide for adequate public health, sanitation, and general welfare; to provide for adequate light, air, sunlight, and environmental amenities; to promote and encourage conservation of scarce resources; to prevent overcrowding of land and undue concentration of population, to facilitate the creation of a convenient, attractive and harmonious community; to attain a desirable balance of residential and employment opportunities; and to expedite the provision of adequate and essential public services to the community.

(Ord. 3048 (part), 1978)

18.01.025 Zoning Code Interpretation

Whenever in the opinion of the Planning and Community Environment Director (PCE Director) there is any question regarding the interpretation of the Comprehensive Plan or the planning and land use provisions of Titles 16, 18 or 21 to any specific case or situation, the PCE Director shall have the authority to interpret such planning codes. When in the opinion of the PCE Director a formal written decision is warranted, the Director shall make the written decision available to the public by posting on the City’s website. The interpretation shall become effective fourteen consecutive calendar days from the date of posting unless appealed under this section. The interpretation shall become the standard interpretation for future application of that provision of this Chapter unless changed by the Council on appeal. In accordance with the provisions of Section 18.77.070(f), any person may appeal the PCE Director’s written interpretation prior to its effective date. All final written interpretations made under this section shall be made publicly available on the City’s website. Staff shall prepare a quarterly Information Report to the Council summarizing all final interpretations made under this section.

(Ord. 5373 § 5, 2016)

18.01.030 Compliance with Regulations

No land shall be used, and no facility, structure, or building shall be erected, constructed, enlarged, altered, moved, or used in any district, as shown upon the zoning map, except in accord with the regulations established by this title.

(Ord. 3048 (part), 1978)

18.01.040 Regulations Minimal

In interpreting and applying the provisions of this title, unless otherwise stated, the provisions shall be held to be the minimum requirements for the promotion of the public safety, health, and the general welfare.

(Ord. 3048 (part), 1978)

18.01.050 Conflict with Other Regulations

Where conflict occurs between the regulations established by this title and the provisions of any other law, title, ordinance, code or other regulation effective within the city, including but not limited to Title 16, Building Regulations, and Chapter 20.08, Setback Lines, the more restrictive of any such provisions shall apply.

It is not intended that this title shall interfere with or abrogate or annul any easement, covenant, or other agreement now in effect; provided, however, that where this title imposes a greater restriction than imposed or required by any other law, title, ordinance, code, or other regulation, or by any easement, covenant, or agreement, the provisions of this title shall apply.

(Ord. 4642 § 31, 2000: Ord. 3064 § 1 (part), 1978: Ord. 3048 (part), 1978)

18.01.060 Noncompliance a Public Nuisance

Any building constructed, altered, moved, replaced, or otherwise maintained, or any use of property in a manner contrary to the provisions of this title, is unlawful and a public nuisance, and the city attorney shall commence such action or actions, proceeding or proceedings as may be deemed appropriate by the city attorney for the abatement, removal, and enjoinment thereof in the manner provided by law, and shall take such other steps and shall apply to such court or courts as may have jurisdiction to grant such relief as will abate and remove such building or use and restrain and enjoin any person, firm, or corporation from constructing, altering, moving, replacing, or otherwise maintaining any building, or using any property in a manner contrary to the provisions of this title.

(Ord. 3048 (part), 1978)

18.01.070 Remedies Cumulative

All remedies provided for in this title shall be cumulative and not exclusive.

(Ord. 3048 (part), 1978)

18.01.080 Violations - Penalties

It is unlawful for any person to violate any provision or to fail to comply with any of the requirements of this chapter or any permits, conditions, or variances granted under this chapter, and shall be subject to any penalty or penalties authorized by law, including but not limited to: administrative enforcement pursuant to Chapters 1.12 and 1.16 of this code; and criminal enforcement pursuant toChapter 1.08 of this code. Each separate day or any portion thereof during which any violation of this chapter occurs or continues shall be deemed to constitute a separate offense.

When the code enforcement officer determines that a violation of this chapter has occurred, he/she may record a notice of pendency of code violation with the Office of the County Recorder stating the address and owner of the property involved. When the violation has been corrected, the code enforcement officer shall issue and record a release of the notice of pendency of code violation.

(Ord. 5493 § 1, 2020: Ord. 3881 § 10, 1989: Ord. 3048 (part), 1978)

18.01.085 Enforcement - Criminal Enforcement Authority

The employee positions designated in this section are authorized to exercise the authority provided in California Penal Code section 836.5 for violations of this chapter. The designated employee positions are: (1) chief building official; and (2) code enforcement officer.

(Ord. 5493 § 2, 2020: Ord. 3184 § 9, 1980)

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▸Contents — Palo Alto Municipal Code
Palo Alto Municipal Code
  1. Article VIII — A. Board of Education
  2. Title 1 — GENERAL PROVISIONS
  3. Title 2 — ADMINISTRATIVE CODE
  4. Title 4 — BUSINESS LICENSES AND REGULATIONS
  5. Title 5 — HEALTH AND SANITATION
  6. Title 6 — ANIMALS
  7. Title 8 — TREES AND VEGETATION
  8. Title 9 — PUBLIC PEACE, MORALS AND SAFETY
  9. Title 10 — VEHICLES AND TRAFFIC
  10. Title 11 — ENVIRONMENTAL IMPACT PROCEDURE
  11. Title 12 — PUBLIC WORKS AND UTILITIES
  12. Title 13 — IMPROVEMENT PROCEDURE
  13. Title 15 — FIRE PREVENTION
  14. Title 16 — BUILDING REGULATIONS
  15. Title 17 — HAZARDOUS MATERIALS STORAGE
  16. ▸Title 18 — ZONING
    Overview
    1. 18.01 Adoption, Purposes, and Enforcement
    2. 18.04 Definitions
    3. 18.08 Designation and Establishment of Districts
    4. 18.09 Accessory Dwelling Units and Junior Accessory Dwelling U…
    5. 18.10 Low Density Residential (R-E, R-2 and RMD) Districts
    6. 18.13 Multiple Family Residential (RM-20, RM-30 and RM-40) Dis…
    7. 18.14 Housing Incentives
    8. 18.15 Density Bonus
    9. 18.16 Neighborhood, Community, and Service Commercial (CN, CC …
    10. 18.18 Downtown Commercial (CD) District
    11. 18.20 Office, Research and Manufacturing (MOR, ROLM, RP and GM…
    12. 18.24 Contextual Design Criteria and Objective Design Standards
    13. 18.28 Special Purpose Districts
    14. 18.29 North Ventura (NV) District Regulations
    15. 18.30 Combining Districts
    16. 18.31 CEQA Review
    17. 18.34 Pedestrian and Transit Oriented Development (PTOD) Combi…
    18. 18.36 Hospital (HD) District
    19. 18.38 PC Planned Community District Regulations
    20. 18.42 Standards for Special Uses
    21. 18.44 Green Development Regulations
    22. 18.46 Requests for Reasonable Accommodation for Accessibility
    23. 18.52 Parking and Loading Requirements
    24. 18.60 Alternative Development Standards for Stanford Lands
    25. 18.62 Special Regulations for Hazardous Waste Facilities
    26. 18.66 Creation of Easements Through the Execution and Recordat…
    27. 18.70 Nonconforming Uses and Noncomplying Facilities
    28. 18.76 Permits and Approvals
    29. 18.77 Processing of Permits and Approvals
    30. 18.78 Appeals
    31. 18.79 Development Project Preliminary Review Procedures
    32. 18.80 Amendments to Zoning Map and Zoning Regulations
    33. Chapter 18.01 — ADOPTION, PURPOSES, AND ENFORCEMENT
    34. Chapter 18.04 — DEFINITIONS
    35. Chapter 18.08 — DESIGNATION AND ESTABLISHMENT OF DISTRICTS
    36. Chapter 18.10 — LOW-DENSITY RESIDENTIAL (RE, R-2 and RMD) DIST…
    37. Chapter 18.13 — MULTIPLE FAMILY RESIDENTIAL
    38. Chapter 18.14 — HOUSING INCENTIVES
    39. Chapter 18.15 — DENSITY BONUS
    40. Chapter 18.16 — NEIGHBORHOOD, COMMUNITY, AND SERVICE COMMERCIA…
    41. Chapter 18.18 — DOWNTOWN COMMERCIAL (CD) DISTRICT
    42. Chapter 18.20 — OFFICE, RESEARCH, AND MANUFACTURING
    43. Chapter 18.28 — SPECIAL PURPOSE (PF, OS and AC) DISTRICTS
    44. Chapter 18.29 — NORTH VENTURA (NV) DISTRICT REGULATIONS
    45. Chapter 18.30 — COMBINING DISTRICTS
    46. Chapter 18.31 — CEQA REVIEW
    47. Chapter 18.34 — PEDESTRIAN AND TRANSIT ORIENTED DEVELOPMENT (P…
    48. Chapter 18.36 — HOSPITAL (HD) DISTRICT
    49. Chapter 18.38 — PC PLANNED COMMUNITY DISTRICT REGULATIONS
    50. Chapter 18.40 — GENERAL STANDARDS AND EXCEPTIONS
    51. Chapter 18.42 — STANDARDS FOR SPECIAL USES
    52. Chapter 18.44 — GREEN DEVELOPMENT REGULATIONS
    53. Chapter 18.46 — REQUESTS FOR REASONABLE ACCOMMODATION FOR
    54. Chapter 18.52 — PARKING AND LOADING REQUIREMENTS
    55. Chapter 18.54 — PARKING FACILITY DESIGN STANDARDS
    56. Chapter 18.60 — ALTERNATIVE DEVELOPMENT STANDARDS FOR STANFORD
    57. Chapter 18.62 — SPECIAL REGULATIONS FOR HAZARDOUS WASTE FACILI…
    58. Chapter 18.66 — CREATION OF EASEMENTS THROUGH THE EXECUTION AND
    59. Chapter 18.70 — NONCONFORMING USES AND NONCOMPLYING FACILITIES
    60. Chapter 18.76 — PERMITS AND APPROVALS
    61. Chapter 18.77 — PROCESSING OF PERMITS AND APPROVALS
    62. Chapter 18.78 — APPEALS
    63. Chapter 18.79 — DEVELOPMENT PROJECT PRELIMINARY REVIEW PROCEDU…
    64. Chapter 18.80 — AMENDMENTS TO ZONING MAP AND ZONING REGULATIONS
  17. Title 19 — MASTER PLAN
  18. Article 7 — AUTHORITY FOR AND SCOPE OF MASTER OR GENERAL PLANS.
  19. Article 8 — PROCEDURE FOR ADOPTION OF MASTER OR GENERAL PLAN.
  20. Chapter 19.06 — SPECIFIC PLANS
  21. Chapter 19.10 — COORDINATED AREA PLANS
  22. Title 20 — PRECISE PLANS
  23. Title 21 — SUBDIVISIONS AND OTHER DIVISIONS OF LAND
  24. Title 22 — PARKS

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