PLANS and PERMITTING in

VENTURA COUNTY

Serving Ventura County: Plans and Permits Done Right

Ventura County is one of Southern California's most varied permitting environments — stretching from the coastal cities of Ventura and Oxnard to the semi-rural hill communities of Ojai and Moorpark, and up into the Santa Monica Mountains where fire safety and habitat overlay zones add significant complexity. Pacific Sands has been active throughout Ventura County for years, working with homeowners, investors, and contractors on everything from coastal ADUs to mountain-area new construction.

What sets Ventura County apart is its mix of incorporated cities and unincorporated county areas — each with distinct requirements. Coastal projects often require coordination with the California Coastal Commission, while hillside and canyon properties fall under special grading and fire safety regulations. Knowing the jurisdiction-specific quirks here is essential to keeping your project on track.

Permitting Jurisdictions within Ventura County

How Permitting Works in Ventura County

City and County Jurisdictions

Ventura County includes a mix of incorporated cities and unincorporated areas, each with its own permitting authority. Cities such as Thousand Oaks, Oxnard, and Simi Valley operate their own building departments, while the County of Ventura handles permitting for unincorporated communities.



Each jurisdiction has its own submittal requirements, plan check timelines, and fee structures. A project in Camarillo may follow a different process than one in Ojai or in a rural unincorporated area, making local experience critical to avoiding delays.

Coastal and Environmental Considerations

Ventura County’s coastal location introduces additional layers of permitting for projects near the shoreline. Cities like Ventura and Oxnard, as well as certain unincorporated coastal areas, may require Coastal Development Permits (CDPs), which can extend approval timelines.

In addition, projects in hillside areas, agricultural zones, or environmentally sensitive regions may require review from agencies overseeing grading, drainage, fire safety, or habitat protection. Early identification of these requirements is essential for accurate project planning.

ADUs in Ventura County: What Pacific Sands Specializes In

Ventura County follows California’s state ADU regulations, making it easier for property owners to add secondary units. Most jurisdictions allow ADUs by right with minimal discretionary review when projects meet zoning and building standards.

Key ADU considerations:

• Detached and attached ADUs are widely permitted
• Garage conversions are a common and efficient option
• ADUs up to 800 sq ft are generally protected under state law from certain local restrictions
• Junior ADUs (JADUs) can be created within existing homes

Pacific Sands has experience navigating Ventura County’s permitting landscape, helping clients design ADUs that comply with local requirements while maximizing property value.

Ventura County Permitting Resources

Below are the primary building and permitting departments for the jurisdictions we work with most frequently in Ventura County. Each city operates its own department, fee structure, and submittal requirements — Pacific Sands manages coordination across all of them to keep projects moving efficiently.

County of Ventura – Planning Division & Building and Safety: For unincorporated areas throughout Ventura County, the County’s Planning Division and Building & Safety Department handle permitting through their online systems. These departments also oversee projects in hillside, rural, and fire-prone areas, which may require additional review for grading, drainage, and fire safety compliance.

City of Ventura (San Buenaventura): Ventura processes permits through its Community Development Department. Projects near the coastline may require Coastal Development Permits, which can add additional review steps depending on location.

City of Oxnard: Oxnard uses an online permitting system and reviews projects through its Community Development Department. Coastal proximity in certain areas may trigger additional planning considerations.

City of Thousand Oaks: Thousand Oaks operates its own building and planning departments, typically offering structured plan check timelines and clear submittal requirements for residential and commercial projects.

City of Simi Valley: Simi Valley processes permits through its Environmental Services Department. Turnaround times are generally efficient, though requirements vary based on project scope.

City of Camarillo: Camarillo handles permits through its Community Development Department, with a streamlined process for many residential project types including ADUs and additions.

Example of Permit Types by Department

Types of Projects Pacific Sands Has Done in Ventura County

Pacific Sands has worked across Ventura County jurisdictions, delivering permitted projects in both city and unincorporated areas.

• Garage Accessory Dwelling Unit (GADU) conversions — one of the most efficient ways to add a permitted rental unit to an existing property.
  
• Accessory Dwelling Unit (ADU) conversions and new construction — including detached units, attached units, and interior conversions.
  
• Home additions — ranging from small expansions to larger structural additions.
  
• Residence conversions — including garage conversions and multi-unit transformations.
  
• Remodels — kitchen, bathroom, and full-home renovations requiring plan approval.
  
• New custom home construction — ground-up residential projects across a variety of site conditions.