What is the maximum ADU size allowed in Sierra Madre?

Detached ADUs in Sierra Madre can be up to 1200 square feet.

ADU Builders & Contractors in Sierra Madre, CA

Q: How much does it cost to build an ADU in Sierra Madre?

The average cost ranges from $143,000 to $318,000, or $193-368 per square foot.

Q: How long does it take to get an ADU permit in Sierra Madre?

The permit process typically takes 60 to 120 weeks in Sierra Madre.

Sierra Madre, CA is home to 31 ADU contractors ready to help. From initial permits to final inspection, these local professionals know Sierra Madre's building codes and can guide your project from concept to completion.

📊 ADU Quick Facts for Sierra Madre

Avg. Cost/sqft

$193-$368

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 31 ADU Contractors in Sierra Madre

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#1FOSTER BRIAN CONSTRUCTION CO INC

Sierra Madre, CA

Foster Brian Construction CO Inc — licensed ADU contractor in Sierra Madre, CA. Detached ADU construction. 24+ years experience.

View Profile 📞 (818) 437 0824

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#2THE CONSTRUCTION WORKS INC

Sierra Madre, CA

The Construction Works Inc — licensed ADU contractor in Sierra Madre, CA. Detached ADU construction.

View Profile 📞 (747) 488 3030

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#3CYVELI CORP

Sierra Madre, CA

Cyveli Corp — licensed ADU contractor in Sierra Madre, CA. Detached ADU construction.

View Profile 📞 (626) 341 7000

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#4JIMMY'S PRO CONSTRUCTION SERVICES INC

Sierra Madre, CA

Jimmy'S Pro Construction Services Inc — licensed ADU contractor in Sierra Madre, CA. Detached ADU construction.

View Profile 📞 (818) 876 2524

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#5MORAN CONSTRUCTION

Sierra Madre, CA

Moran Construction — licensed ADU contractor in Sierra Madre, CA. Detached ADU construction.

View Profile 📞 (626) 644 4426

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#6NU-COAT PAINTING

Sierra Madre, CA

NU-Coat Painting — licensed ADU contractor in Sierra Madre, CA. Detached ADU construction. 43+ years experience.

View Profile 📞 (626) 351 5272

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#7ROSTKER STEVEN LENON

Sierra Madre, CA

Rostker Steven Lenon — licensed ADU contractor in Sierra Madre, CA. Detached ADU construction. 39+ years experience.

View Profile 📞 (626) 233 2447

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#8ANDREWS DAVID J

Sierra Madre, CA

Andrews David J — licensed ADU contractor in Sierra Madre, CA. Detached ADU construction. 37+ years experience.

View Profile 📞 (626) 355 0545

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#9SAKO DEVELOPMENT INC

Sierra Madre, CA

Sako Development Inc — licensed ADU contractor in Sierra Madre, CA. Detached ADU construction. 36+ years experience.

View Profile 📞 (626) 216 7833

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#10INTER-PLAN WEST CONSTRUCTION

Sierra Madre, CA

Inter-Plan West Construction — licensed ADU contractor in Sierra Madre, CA. Detached ADU construction. 32+ years experience.

View Profile 📞 (626) 355 8880

View All 31 Contractors →

💰 How Much Does an ADU Cost in Sierra Madre?

Garage Conversion

$66,500 - $126,500

Converting existing garage to living space

Detached ADU

$143,000 - $318,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$1,105 - $5,105

Plan check, permits, utility connections

* Costs vary based on size, finishes, site conditions, and contractor. Get quotes from multiple Sierra Madre contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Sierra Madre

How much does it cost to build an ADU in Sierra Madre?▼

The average cost to build an ADU in Sierra Madre ranges from $143,000 to $318,000, or approximately $193 to $368 per square foot. Garage conversions typically cost $66,500 to $126,500.

How long does it take to get an ADU permit in Sierra Madre?▼

The ADU permit process in Sierra Madre typically takes 60 to 120 weeks. California law requires cities to approve or deny ADU permits within 60 days of receiving a complete application.

What are the ADU size limits in Sierra Madre?▼

In Sierra Madre, detached ADUs can be up to 1200 square feet. Attached ADUs are limited to 50% of the primary dwelling or 1,200 sqft, whichever is less. Junior ADUs (JADUs) are limited to 500 sqft and must be within the existing home.

What is the setback requirement for ADUs in Sierra Madre?▼

Sierra Madre requires 4-foot setbacks from side property lines and 4-foot setbacks from rear property lines for new ADU construction. Converted structures (like existing garages) may maintain their current setbacks.

Do I need to provide parking for my ADU in Sierra Madre?▼

No parking is required for ADUs in Sierra Madre if your property is within half a mile of public transit, in a historic district, part of an existing multi-family building, or if the ADU is a garage conversion. Otherwise, one space may be required.

Also See ADU Contractors In

Los Angeles (3215)San Diego (2582)San Francisco (2170)Sacramento (1551)Riverside (925)Fresno (904)Anaheim (784)Irvine (760)

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