What is the maximum ADU size allowed in Philadelpia?

Detached ADUs in Philadelpia can be up to 1000 square feet.

ADU Builders & Contractors in Philadelpia, FL

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

The average cost ranges from $90,000 to $240,000, or $140-290 per square foot.

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

The permit process typically takes 30 to 90 weeks in Philadelpia.

With 1 verified ADU contractors serving Philadelpia, FL, homeowners have plenty of options for their accessory dwelling unit project. Local contractors ready to help specialize in everything from design-build to permit navigation.

📊 ADU Quick Facts for Philadelpia

Avg. Cost/sqft

$140-$290

Permit Timeline

30-90 weeks

Max Size

1000 sqft

Setbacks

5ft sides

Top 1 ADU Contractors in Philadelpia

🏗️

#1MLS Development Co., Inc.

Philadelpia, FL

MLS Development Co., Inc. — licensed ADU contractor in Philadelpia, FL.

View Profile 📞 (601) 504-7520

💰 How Much Does an ADU Cost in Philadelpia?

Garage Conversion

$35,000 - $95,000

Converting existing garage to living space

Detached ADU

$90,000 - $240,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$604 - $3,104

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Philadelpia

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

The average cost to build an ADU in Philadelpia ranges from $90,000 to $240,000, or approximately $140 to $290 per square foot. Garage conversions typically cost $35,000 to $95,000.

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

The ADU permit process in Philadelpia 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 Philadelpia?▼

In Philadelpia, 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 Philadelpia?▼

Philadelpia 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 Philadelpia?▼

No parking is required for ADUs in Philadelpia 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

Miami (224)Tampa (223)Jacksonville (121)Orlando (117)Naples (110)Sarasota (103)Fort Myers (91)Cape Coral (83)

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