ADU Builders & Contractors in OBrien, FL
OBrien, FL is home to 1 ADU contractors ready to help. From initial permits to final inspection, these local professionals know OBrien's building codes and can guide your project from concept to completion.
📊 ADU Quick Facts for OBrien
Avg. Cost/sqft
$159-$309
Permit Timeline
30-90 weeks
Max Size
1000 sqft
Setbacks
5ft sides
Top 2 ADU Contractors in OBrien
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💰 How Much Does an ADU Cost in OBrien?
Garage Conversion
$44,500 - $104,500
Converting existing garage to living space
Detached ADU
$109,000 - $259,000
New standalone unit (600-1,200 sqft)
Permit & Fees
$598 - $3,098
Plan check, permits, utility connections
* Costs vary based on size, finishes, site conditions, and contractor. Get quotes from multiple OBrien contractors to compare pricing.
❓ Frequently Asked Questions About ADUs in OBrien
How much does it cost to build an ADU in OBrien?▼
The average cost to build an ADU in OBrien ranges from $109,000 to $259,000, or approximately $159 to $309 per square foot. Garage conversions typically cost $44,500 to $104,500.
How long does it take to get an ADU permit in OBrien?▼
The ADU permit process in OBrien typically takes 30 to 90 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 OBrien?▼
In OBrien, detached ADUs can be up to 1000 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 OBrien?▼
OBrien requires 5-foot setbacks from side property lines and 5-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 OBrien?▼
No parking is required for ADUs in OBrien 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.
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