ADU Builders & Contractors in Trenton, FL
Building an ADU in Trenton? You'll find 2 licensed contractors in the area, ready to help. Trenton's ADU market continues to grow as homeowners invest in additional living space, rental income, and multi-generational housing.
📊 ADU Quick Facts for Trenton
Avg. Cost/sqft
$144-$294
Permit Timeline
30-90 weeks
Max Size
1000 sqft
Setbacks
5ft sides
Top 2 ADU Contractors in Trenton
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💰 How Much Does an ADU Cost in Trenton?
Garage Conversion
$37,000 - $97,000
Converting existing garage to living space
Detached ADU
$94,000 - $244,000
New standalone unit (600-1,200 sqft)
Permit & Fees
$614 - $3,114
Plan check, permits, utility connections
* Costs vary based on size, finishes, site conditions, and contractor. Get quotes from multiple Trenton contractors to compare pricing.
❓ Frequently Asked Questions About ADUs in Trenton
How much does it cost to build an ADU in Trenton?▼
The average cost to build an ADU in Trenton ranges from $94,000 to $244,000, or approximately $144 to $294 per square foot. Garage conversions typically cost $37,000 to $97,000.
How long does it take to get an ADU permit in Trenton?▼
The ADU permit process in Trenton 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 Trenton?▼
In Trenton, 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 Trenton?▼
Trenton 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 Trenton?▼
No parking is required for ADUs in Trenton 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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