Pasadena, Los Angeles County

ADUs and remodels in Pasadena, built right.

Design, permits with the City of Pasadena building department, and construction under one licensed general contractor, building in California since 2017.

Walk-in marble-look shower with skylight, dual brass shower sets, linear drain and corner bench

Building in Pasadena

  • ●Historic districts can add design review for exterior changes and new structures.
  • ●Hillside areas can carry extra grading and fire-zone requirements.

State ADU law that applies in Pasadena

60 days
Cities must approve or deny a complete ADU permit application within 60 days.
4 ft
Side and rear setbacks for ADUs can be no more than 4 feet under state law.
< 750 sq ft
ADUs under 750 square feet are exempt from impact fees.
No owner-occupancy
You do not have to live on the property to rent an ADU (Junior ADUs still require it).

ADUs in Pasadena: common questions

Can I build an ADU on my Pasadena lot?

Most single-family lots in California can add at least one ADU and one Junior ADU under state law. Pasadena applies its own zoning and design rules on top, and we check them for your specific property in a free feasibility review.

Who approves ADU permits in Pasadena?

ADU permits are issued by the City of Pasadena building department. State law requires the city to act on a complete ADU application within 60 days. We prepare the plans, respond to plan-check comments and coordinate utility connections.

What does an ADU cost in Pasadena?

It depends mostly on the type and size. Garage conversions and Junior ADUs can start around $100,000, while new detached ADUs often run $300,000 or more all-in. Our ADU cost estimator gives you a planning range in under a minute.

Free consultation

Planning a project in Pasadena? Let's talk.

Start with a free Zoom call or an in-home visit. We will look at your space, talk through options and budget, and give you a clear next step, with no pressure.

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