ADU Impact Fees: Carrollton vs Dallas
How do adu impact fees rules compare between Carrollton, TX and Dallas, TX?
Carrollton, TX
Dallas County
No data available yet for Carrollton.
Dallas, TX
Dallas County
Dallas charges standard impact and utility fees on ADUs without a state-mandated waiver. The Dallas Water Utilities (DWU) impact fee schedule applies based on meter size, with separate water connections triggering full impact fees. Oncor handles electric service. Roadway impact fees under Dallas City Code Ch. 49A may apply for new dwelling units. Texas has no statewide ADU fee waiver comparable to California's.
View full Dallas rules →Key Facts Comparison
| Fact | Carrollton | Dallas |
|---|---|---|
| Permit Fee Range | - | $400–$800 typical |
| DWU Water Impact | - | ~$2,000–$5,000 (new connection) |
| DWU Sewer Impact | - | ~$1,500–$4,000 |
| State Waiver | - | None — Texas has no ADU exemption |
| Roadway Impact | - | Dallas Code Ch. 49A may apply |
Highlighted rows indicate differences between cities.
Carrollton FAQ
No FAQs available.
Dallas FAQ
Are ADU impact fees waived in Dallas?
No. Texas has no statewide ADU impact-fee waiver. Dallas charges standard fees but allows ADUs to share the principal dwelling's water/sewer tap to avoid most DWU impact fees. Building, plan-check, and trade permit fees still apply.
What does an ADU cost in fees in Dallas?
Expect $1,000–$3,000 in building, plan-check, and trade permit fees for a small ADU sharing the main house's utilities. Separate water/sewer connections add $3,500–$9,000 in DWU impact fees.
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