- Home
- Service Areas
- Agoura Hills
Agoura Hills, Los Angeles County
ADUs & home additions in Agoura Hills, CA.
Agoura Hills offers free pre-approved ADU plans in cottage, ranch and Spanish styles, for hillside and canyon lots across the city.
Building in Agoura Hills
Free plans, real site work.
Agoura Hills' pre-approved ADU program removes much of the design cost. What remains is the site: slopes, drainage, access, septic systems in some areas and fire requirements in the hills.
Those factors usually decide the budget more than the plan itself. A site visit should look at grading and the route to utilities or septic, and tell you what the pre-approved plan will really cost to build on your property, or whether a conversion or addition makes more sense.
Agoura Hills is in Los Angeles County, just over the line from Westlake Village and Thousand Oaks, and part of the Conejo Valley area we serve.
What to know in Agoura Hills
- The city's Building and Safety Division runs a Pre-Approved Standard ADU Plan Program with free studio, one-bedroom and two-bedroom plans in cottage, ranch and Spanish styles.
- Plan check fees are generally waived for the pre-approved plans, though grading and drainage, septic, utility and fire sprinkler requirements may still apply.
- Hillside lots often need grading and drainage plans and, in some cases, geotechnical input before an ADU can be placed.
Project types in Agoura Hills
ADUs and additions in Agoura Hills.
ADUs
Accessory dwelling units of every type, from feasibility and permits through final inspection.
Learn more →
Garage-to-ADU Conversions
Reuse an existing garage for the fastest, most economical path to a complete ADU.
Learn more →
Detached ADUs
Freestanding backyard homes with full foundations, framing, utilities and finishes.
Learn more →
Attached ADUs
Units that share a wall with the main house, including attached-garage conversions.
Learn more →
Junior ADUs (JADUs)
Up to 500 square feet created within your existing home, with an efficiency kitchen.
Learn more →
Home Additions
Room additions, kitchen expansions and roof decks built to blend with your home.
Learn more →
Second-Story Additions
Build up instead of out, with structural evaluation, engineering and framing done right.
Learn more →
Primary Suite Additions
Master bedroom and bathroom additions with closets, showers and soaking tubs.
Learn more →Questions
Agoura Hills ADU & addition questions
Are Agoura Hills' pre-approved ADU plans really free?
The plans are free, and plan check fees are generally waived. Site-specific work such as grading, drainage, septic, utilities and fire sprinklers may still be required and is where most of the cost lies.
What styles do the Agoura Hills ADU plans come in?
Studio, one-bedroom and two-bedroom plans in cottage, ranch and Spanish styles.
Can I build an ADU on a septic system in Agoura Hills?
Possibly. The septic system must be evaluated for the added unit and may need upgrades. That review is part of the feasibility stage.
Nearby areas
Also serving areas near Agoura Hills.
Free consultation
Planning an ADU or addition in Agoura Hills?
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