Charlotte allows ADUs in residential zones with reasonable regulations. The city's rapid growth and housing demand have made it increasingly supportive of accessory units as an infill strategy.
Zoning & Size Requirements
| Allowed Zones | Single-family residential zones |
| Max Size (Detached) | 850 sq ft |
| Max Size (Attached) | 700 sq ft |
| Max Size (JADU) | Not allowed |
| Max Height | 35 feet |
| Max Units | 1 ADU per lot |
Setback Requirements
| Rear Setback | 15 feet |
| Side Setback | 5 feet |
| Front Setback | 20 feet |
| Parking Required | 1 space per unit |
| Owner Occupancy | Not required |
| Min Lot Size | 5,000 sq ft |
Permit Process & Fees
| Approval Process | Building permit |
| Review Timeline | 50-75 days |
| Permit Fees | $2,200-$3,800 |
| Impact Fees | $800-$1,400 |
| Plan Check | 2-3 weeks |
| Pre-Approved Plans | Available for select types |
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Construction Costs
| Average Build Cost | $115,000-$230,000 |
| Cost per Sq Ft | $135-$270 |
| Garage Conversion | $55,000-$130,000 |
| Prefab ADU (Installed) | $80,000-$180,000 (installed) |
Finance Your ADU Project
Most ADU projects are funded through HELOCs, construction loans, or cash-out refinancing. Compare rates from top lenders in minutes.
Compare ADU Financing Options →Rental Income Potential
| Avg Rent (1 Bedroom) | $1,250-$1,700/mo |
| Avg Rent (2 Bedroom) | $1,600-$2,200/mo |
| Short-Term Rental | Varies by neighborhood |
| Est. Annual ROI | 7-10% annual return |
Explore Prefab ADU Options
Prefab ADUs can save 20-40% vs. traditional construction and cut build time in half. Compare top prefab manufacturers.
Compare Prefab ADUs →Recent Law Changes
What's Changed Recently
- 2024: Expanded ADU allowance in residential zones
- 2023: Streamlined permitting process
- 2024: Increased max detached ADU size from 750 to 850 sq ft
- 2023: Created pre-approved ADU plans
Tips for Building an ADU in Charlotte
- Charlotte's booming tech sector creates strong rental demand
- Rapid population growth supports property appreciation
- Reasonable property costs with strong cash flow potential
- Neighborhood HOAs can restrict ADU development; verify early
Frequently Asked Questions
Can I build an ADU in Charlotte?
Yes. ADUs are allowed in Single-family residential zones in Charlotte. The maximum size for a detached ADU is 850 sq ft. No owner-occupancy is required.
How much does an ADU cost in Charlotte?
ADU construction in Charlotte typically costs $115,000-$230,000. Garage conversions run $55,000-$130,000, and prefab ADUs cost $80,000-$180,000 (installed).
How much can I rent an ADU for in Charlotte?
Average ADU rents in Charlotte are $1,250-$1,700/mo for a 1-bedroom and $1,600-$2,200/mo for a 2-bedroom unit.
Do I need parking for an ADU in Charlotte?
1 space per unit. Check with Charlotte planning department for the latest North Carolina ADU parking rules, as many states have relaxed requirements in recent years.
How long does it take to get an ADU permit in Charlotte?
The permit review timeline in Charlotte is 50-75 days. Fees range from $2,200-$3,800.
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