Building near the coast or a creek in Morro Bay, California
Allowed with board review
Most development in Morro Bay's coastal zone needs a coastal development permit from the city, though many improvements to an existing house are exempt. On bluff-top lots, new development must be at least 20 feet from the bluff edge, or more if a geologic study requires. Wetlands need a 100-foot buffer and creeks and riparian areas 50 feet.
| Coastal development permit | Required for all development in the CRP overlay unless exempt or waived [1] |
| Coastal bluff setback | At least 20 ft from bluff edge (more per 100-year geologic study) [2] |
| Setback where no bluff (within 500 ft of mean high tide) | At least 20 ft from coastline or ocean/bay property line [3] |
| Wetland buffer | 100 ft minimum [4] |
| Stream/riparian buffer | 50 ft minimum [9] |
| Bluff face development | Prohibited (except public access stairs, certain pipelines) [5] |
| Shoreline protection (seawalls) | Deed restriction waiving future armoring for blufftop/shoreline lots [6] |
| Exemption limit in appealable areas | Lost if floor area grows 10% or more [8] |
| Other ESHA buffer | 50 ft minimum [10] |
The coastal zone and CDPs
Morro Bay's Coastal Resource Protection (CRP) overlay covers the city's coastal zone. Under the certified Local Coastal Program, all development there needs a coastal development permit (CDP) from the city unless it's exempt or waived as de minimis [1]. Improvements to an existing single-family home are generally exempt [7]. The exemption doesn't apply on a beach, in a wetland or sensitive habitat, in highly scenic areas, or within 50 feet of a bluff edge. In areas where decisions can be appealed to the Coastal Commission, an addition of 10% or more of floor area, or a height increase of more than 10%, also needs a CDP [8].
Bluffs and beaches
- Bluff setback: new development must be set back far enough to keep a 1.5 factor of safety for at least 100 years, based on a site-specific geologic study, and never less than 20 feet from the bluff edge [2]. A geologic report is required for development on or next to a beach or bluff.
- No-bluff shorelines: within 500 feet of mean high tide, structures must be set back to avoid erosion hazards for their lifetime or 50 years, whichever is greater, and at least 20 feet from the coastline or the ocean/bay property line, whichever gives the greater setback [3].
- Bluff face: no development except public access stairways and certain pipelines [5]. No permanent structures on dry sandy beach.
- Seawalls: new development must be safe without shoreline protection. Blufftop and shoreline lots without a legal device must record a deed restriction waiving future armoring [6].
Wetlands, creeks and habitat
Projects within 100 feet of mapped or suspected environmentally sensitive habitat (ESHA) need a site resource survey. Required buffers are 100 feet from wetlands [4], at least 50 feet from the outer edge of stream and riparian vegetation [9], and 50 feet from other ESHA [10]. Buffers must stay in native vegetation, and smaller buffers are allowed only with specific findings.
Hazards
The city screens every application for hazards over 100 years, including sea level rise. Sites in mapped hazard areas need a hazards report, and owners must acknowledge the risk by deed restriction. The Embarcadero waterfront has its own rules.
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Next steps
- Ask the Community Development Department (955 Shasta Avenue, 805-772-6267) whether your lot is in the CRP overlay, an appealable area, a hazard area or near mapped ESHA, and whether your project is exempt.
- For bluff-top or beachfront lots, hire a licensed engineering geologist or civil engineer for the required geologic report showing the bluff edge and 100-year setback.
- Near wetlands, creeks or habitat, commission a biological site resource survey to map buffers before you design.
- Apply for the coastal development permit with your planning application; appealable projects can be appealed to the Coastal Commission.
Common questions
- Do I need a coastal development permit in Morro Bay, California?
- Most development in Morro Bay's coastal zone needs one from the city, though many improvements to an existing single-family home are exempt. The exemption doesn't apply on a beach, in a wetland, in highly scenic areas or within 50 feet of a bluff edge.
- What is the bluff setback in Morro Bay, California?
- New development on bluff-top lots must be at least 20 feet from the bluff edge, or more if a site-specific geologic study requires it to stay safe for at least 100 years.
- What are the wetland and creek buffers in Morro Bay, California?
- Wetlands need a 100-foot buffer, and streams and riparian areas at least 50 feet from the outer edge of riparian vegetation. Other sensitive habitat needs 50 feet, and buffers must stay in native vegetation.
- Can I build a seawall in Morro Bay, California?
- New development must be safe without shoreline protection. Blufftop and shoreline lots without a legal device must record a deed restriction waiving future armoring.
California rules for building near the coast and creeks
California has no statewide shoreland setback. Near water, two state laws matter most.
The coastal zone (Coastal Act, Pub. Res. Code §30000 et seq.):
- Almost any development in the coastal zone needs a coastal development permit (CDP) (§30600). "Development" is broad: buildings, additions, grading, lot splits, removing major vegetation, and changes in intensity of use (§30106).
- The zone generally runs about 1,000 yards inland from mean high tide (up to 5 miles in some habitat areas, less in some cities). San Francisco Bay is excluded; BCDC regulates it (§30103).
- Where a city or county has a Local Coastal Program (LCP) certified by the Coastal Commission, it issues the CDP (§30519). Otherwise the Commission does.
- Local approvals can be appealed to the Coastal Commission for projects between the sea and the first public road, within 300 ft of a beach or the mean high tide line, within 100 ft of a wetland, estuary or stream, or within 300 ft of a coastal bluff (§30603).
- Some improvements to existing homes and repairs are exempt (§30610), with exceptions set by regulation.
Creeks, streams and lakes statewide: you must notify the Department of Fish and Wildlife before work that diverts or blocks a stream, changes its bed, channel or bank, or puts material into it (Fish & Game Code §1602), even for streams that are dry part of the year. CDFW may require a Lake or Streambed Alteration Agreement.
Cities and counties often add their own creek setbacks or riparian buffers.
What the ordinance says
- Sec. 17.14.030, Municipal Code Title 17 Division II District Regulations (Ch. 17.07 residential districts; 17.11 waterfront and harbor area districts; 17.14 Coastal Resource Protection overlay), p. 1
In addition to any other required permits or approvals, all development, as defined in Coastal Act Section 30106, within the coastal resource protection (CRP) overlay district requires a coastal development permit (CDP) pursuant to Chapter 17.39, Coastal Development Permits (IP), except as specified in Section 17.39.020, CDP Exemptions, and Section 17.39.030, Waivers for Deminimis Development.
- Sec. 17.14.100(C)(6)(a), Municipal Code Title 17 Division II District Regulations (Ch. 17.07 residential districts; 17.11 waterfront and harbor area districts; 17.14 Coastal Resource Protection overlay), p. 1
New development must be set back equal to a sufficient setback to maintain a minimum factor of safety of at least one and one-half for a minimum of one hundred years based on a site-specific geological or geotechnical engineering study. In no case shall the minimum setback be less than twenty feet from the coastal bluff edge.
- Sec. 17.14.100(C)(6)(b), Municipal Code Title 17 Division II District Regulations (Ch. 17.07 residential districts; 17.11 waterfront and harbor area districts; 17.14 Coastal Resource Protection overlay), p. 1
In no case shall the minimum setback be less than twenty feet from the coastline or property line adjacent to the ocean or bay, whichever results in a greater setback.
- Sec. 17.14.080, ESHA Buffers (Size), Municipal Code Title 17 Division II District Regulations (Ch. 17.07 residential districts; 17.11 waterfront and harbor area districts; 17.14 Coastal Resource Protection overlay), p. 1
Wetlands shall have a minimum buffer width of one hundred feet, measured from the outer edge of the wetland.
- Sec. 17.14.100(C)(4), Municipal Code Title 17 Division II District Regulations (Ch. 17.07 residential districts; 17.11 waterfront and harbor area districts; 17.14 Coastal Resource Protection overlay), p. 1
No development shall be permitted on a coastal bluff face, except for engineered staircases or accessways to provide public beach access and pipelines for scientific research or coastal-dependent industry.
- Sec. 17.14.100(C)(8)(a), Municipal Code Title 17 Division II District Regulations (Ch. 17.07 residential districts; 17.11 waterfront and harbor area districts; 17.14 Coastal Resource Protection overlay), p. 1
All permits for development on coastal blufftop or shoreline lots that do not have a legally established shoreline protection structure shall have conditions of approval requiring that prior to issuance of any grading or construction permits, the property owner record a deed restriction against the property to ensure that no shoreline protection structure will be proposed or constructed to protect the development, and expressly waiving any future right to construct such devices.
- Sec. 17.39.020(A), Municipal Code Title 17 Ch. 17.39 Coastal Development Permits (IP), p. 1
Improvements to an existing single-family residence, including fixtures and structures directly attached to a residence, landscaping, and structures normally associated with a single-family residence, such as garages, swimming pools, fences and storage sheds.
- Sec. 17.39.020(A)(3)(a), Municipal Code Title 17 Ch. 17.39 Coastal Development Permits (IP), p. 1
Improvement that would result in an increase of ten percent or more of internal floor area of an existing structure; or
- Sec. 17.14.080, ESHA Buffers (Size), Municipal Code Title 17 Division II District Regulations (Ch. 17.07 residential districts; 17.11 waterfront and harbor area districts; 17.14 Coastal Resource Protection overlay), p. 1
For rivers, streams, and riparian areas, the required buffer shall extend at least fifty feet from the outer edge of the riparian vegetation on both sides of the river, stream, and/or riparian area
- Sec. 17.14.080, ESHA Buffers (Size), Municipal Code Title 17 Division II District Regulations (Ch. 17.07 residential districts; 17.11 waterfront and harbor area districts; 17.14 Coastal Resource Protection overlay), p. 1
All other ESHA shall have a minimum buffer width of fifty feet, measured from the outer edge of the ESHA.
This page summarizes Morro Bay's posted ordinances as of 2026-10-05. Ordinances are amended, and individual lots can have overlays, subdivision covenants, or HOA rules that are stricter. Confirm with City of Morro Bay Community Development Department - Building Division (Building Inspector/Code Enforcement Officer 805-772-6213), 955 Shasta Avenue; Harbor Department handles waterfront enforcement (805-772-6267) before you build. Spot an error?