City of Lewisville
City of Lewisville Development Services
CityMS4 Phase IIVerified 2026-03
Local Permit / Authorization
- Permit Required
- Yes
- Permit Name
- Grading / Drainage Permit
- Submit To
- City of Lewisville Development Services
- Lead Time
- Plan review typically 2–4 weeks
- Application Method
- Submit via City of Lewisville Development Services at 151 W. Church St., Lewisville, TX 75057 or online portal
- Fee
- Contact agency for current fee schedule
Water Quality Standards
- Impervious Cover Limit
- No citywide impervious cover cap; drainage systems must accommodate design storm flows per Lewisville Drainage Design Criteria; Lewisville Lake watershed is a primary concern
- On-Site Treatment Required
- No
- Detention Required
- Yes
- Detention Standard
- Detention required to limit post-development peak flows to pre-development levels for 2-, 10-, and 100-year storms per City of Lewisville Drainage Design Criteria
- Turbidity Standard
- No numeric NTU limit; discharges must comply with TCEQ TXR150000 and not degrade Lewisville Lake, Elm Fork Trinity River, or downstream water quality
Local SWPPP / Drainage Plan
- Local Plan Required
- Yes
- Plan Name
- SWPPP per TCEQ TXR150000; drainage report required for local permit
- PE Stamp Required
- Yes
Drainage study prepared by a Texas PE required for grading permits. Lewisville sits immediately downstream of Lewisville Lake (USACE), one of the largest lakes in the DFW Metroplex and a major water supply and recreation reservoir. Projects in the contributing watershed should implement enhanced BMPs to protect lake water quality.
Local Inspection Requirements
- Requirements
- City of Lewisville Development Services inspects grading permits at rough grading and final stabilization.
- Inspector Qualification
- No city-specific certification required beyond TCEQ SWPPP requirements
Special Overlay Zones
Lewisville Lake USACE Project Boundary
Trigger: Construction within the USACE Lewisville Lake project boundary or potentially affecting lake shoreline or inflows
Restriction: USACE Section 404/10 permits required for work in or adjacent to Lewisville Lake; USACE Fort Worth District manages the lake; shoreline management plan governs development adjacent to the lake
Elm Fork Trinity River Floodplain
Trigger: Development within FEMA-mapped 100-year floodplain along the Elm Fork Trinity River
Restriction: Floodplain development permit required from City of Lewisville Floodplain Administrator; no net fill without compensatory storage
Design Manual
- Manual Name
- City of Lewisville Drainage Design Criteria
Official Resources
Jurisdiction Notes
Lewisville is a rapidly growing suburb in Denton County, located immediately south of Lewisville Lake — one of the DFW area's largest USACE reservoirs. The city has seen significant commercial and residential development pressure along the I-35E corridor. Denton County drainage regulations apply outside city limits. The proximity to Lewisville Lake means water quality protection is a key consideration for construction runoff.
Remember: These local requirements are in addition to the TCEQ state construction permit. Both must be satisfied before breaking ground.
Disclaimer: This information is provided for general reference only. Always verify requirements directly with City of Lewisville Development Services and the agency website before beginning construction.