Pasadena's historic neighborhoods and specific design guidelines make ADU construction unique. Here's what you need to know.
Pasadena ADU Regulations
Pasadena has its own ADU ordinance separate from State law. Maximum size is 1,200 sq ft for detached ADUs. Historic districts have additional design review requirements. Setbacks and height limits vary by zone.
Pasadena ADU Costs
New construction ADUs: $350-$500 per sq ft. Garage conversions: $150,000-$250,000. Detached new builds: $250,000-$450,000+. Add 10-15% for historic district compliance.
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Pasadena ADU Timeline
Permits: 2-4 months (longer in historic districts). Construction: 4-8 months depending on size. Total project: 6-12 months.
Final Thoughts
Pasadena ADUs require navigating both State law and local regulations. Historic district properties need extra planning time and design consideration.
Frequently Asked Questions
Costs vary based on scope and location. Consult with professionals for accurate estimates.
