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Camarillo, Ventura County
ADUs & home additions in Camarillo, CA.
Camarillo homeowners are adding ADUs and additions to everything from Spanish Hills hillside homes to single-story ranch houses near Old Town and Mission Oaks.
Building in Camarillo
Room to grow in Camarillo.
Camarillo's large stock of single-story homes on generous lots suits both detached ADUs and ground-floor additions.
Many Camarillo homes from the 1960s through the 1990s have attached garages, stucco exteriors and concrete tile or composition roofs. That makes them good candidates for garage conversions and for additions where matching the roof and stucco is the difference between looking original and looking added on. Ask any contractor how they will match the roof and stucco on your home.
Camarillo has updated its ADU rules several times as state law changed. Because HCD has flagged parts of the current ordinance, it is worth checking which local standards still apply to your lot before design, so you are not designing around a rule that state law has already overridden.
What to know in Camarillo
- In 2022, Camarillo revised its rules to allow ADUs on all single-family and multifamily zoned lots, rather than a handful of listed zones (Ventura County Star).
- HCD's March 2025 review of Camarillo's 2024 ADU ordinance identified areas out of compliance with state law, including deed restrictions and limits on combining ADU types. Where they conflict, state law controls.
- State law allows a converted ADU, a JADU and a new detached ADU to be combined on a single-family lot.
Project types in Camarillo
ADUs and additions in Camarillo.
ADUs
Accessory dwelling units of every type, from feasibility and permits through final inspection.
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Garage-to-ADU Conversions
Reuse an existing garage for the fastest, most economical path to a complete ADU.
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Detached ADUs
Freestanding backyard homes with full foundations, framing, utilities and finishes.
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Attached ADUs
Units that share a wall with the main house, including attached-garage conversions.
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Junior ADUs (JADUs)
Up to 500 square feet created within your existing home, with an efficiency kitchen.
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Home Additions
Room additions, kitchen expansions and roof decks built to blend with your home.
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Second-Story Additions
Build up instead of out, with structural evaluation, engineering and framing done right.
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Primary Suite Additions
Master bedroom and bathroom additions with closets, showers and soaking tubs.
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Camarillo ADU & addition questions
Can I build an ADU anywhere in Camarillo?
Since 2022, Camarillo has allowed ADUs on all single-family and multifamily zoned lots. Site conditions, setbacks and utilities still decide what fits.
Can I combine a JADU and a detached ADU in Camarillo?
State law allows a converted ADU, a JADU and a new detached ADU on a single-family lot. HCD has told Camarillo that some of its local limits on combining ADU types do not comply, so state law is the reference.
Can I get a consultation for a home addition in Camarillo?
Yes, including primary suites, room additions and second stories. See home additions.
Nearby areas
Also serving areas near Camarillo.
Free consultation
Planning an ADU or addition in Camarillo?
Share a few details about your property and the space you want to add. We will pass your request to a licensed local general contractor who specializes in ADUs and additions, and they will follow up directly.
- Free consultation and site visit
- A realistic budget conversation before you pay for plans
- A licensed general contractor from permit to final