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ADUs & Conversions

Irvine ADU Construction: City Rules, HOAs & Costs

Your HOA and the City each review an Irvine ADU, and the design has to satisfy both.

7 min read
Modern ADU in Irvine master-planned community

Irvine's master-planned communities have specific architectural standards that affect ADU design. Here's what you need to know.

Irvine HOA Considerations

State law limits HOA authority over ADUs, but architectural standards still apply. Exterior materials, colors, and roof styles must typically match the main home. Some HOAs require architectural committee review.

Irvine ADU Regulations

Irvine follows State ADU law with some local requirements. Maximum 1,200 sq ft for detached ADUs. Setback and height requirements vary by zone. Parking requirements have been reduced under State law.

Irvine ADU Costs

Garage conversions: $80,000-$180,000. New detached ADUs: $300,000-$500,000. Premium materials to match HOA standards add 10-15%.

Final Thoughts

Irvine ADUs require coordination with both City planning and HOA architectural review. Plan for longer approval timelines in master-planned communities.

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Frequently Asked Questions

Can my HOA stop me from building an ADU?

No, State law prevents HOAs from prohibiting ADUs, but they can enforce reasonable architectural standards.

Topics

  • irvine
  • adu
  • hoa
  • orange county
  • local

About the author

Remodel Your Vibe Design Team

Written by the design team at Remodel Your Vibe, a licensed (CSLB #1119054 (opens the CSLB license record in a new tab)), bonded and insured, veteran-owned and family-operated design-build company based in Los Angeles. Our own crews design, permit and build pools, backyards, ADUs and interiors across Greater Los Angeles and Orange County.

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