20260304-003 C814-2018-0122.03 Circuit of the Americas PUD Amendment #3 Presentation — original pdf

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ITEM FOR ENVIRONMENTAL COMMISSION AGENDA COMMISSION MEETING DATE: March 4, 2026 NAME & NUMBER OF PROJECT: Circuit of the Americas PUD Amendment #3, C814-2018-0122.03 NAME OF APPLICANT OR ORGANIZATION: Armbrust & Brown, PLLC (Michael Whellan) LOCATION: 9201 Circuit of the Americas Boulevard COUNCIL DISTRICT: 2 ENVIRONMENTAL REVIEW STAFF: WATERSHED: REQUEST: STAFF RECOMMENDATION: Leslie Lilly, Environmental Conservation Program Manager, 512-535-8914, Leslie.Lilly@austintexas.com Suburban Watershed, Dry Creek East Watershed, Desired Development Zone The applicant proposes to amend a previously approved Planned Unit Development (PUD). This is amendment #3. Recommended with conditions. Circuit of the Americas (COTA) Planned Unit Development (PUD) Amendment #3 C814-2018-0122.03 Austin Watershed Protection | March 4, 2026 COTA PUD C814-2018-0122 2 History of the Site 1940’s Lady Bird Lake ▪ Clearing and grading activities documented from 1940s on. ▪ Dam built in 1970s ▪ Site development permit for racetrack approved in 2011 ▪ Planned Unit Development (PUD) approved in 2020 1970’s 3 Existing Conditions Lady Bird Lake ▪ 1,153 acres ▪ Suburban Watershed, Dry Creek East ▪ Desired Development Zone ▪ Major Critical Water Quality Zones (CWQZ) ▪ 100-yr Floodplain ▪ Critical Environmental Features (CEF) ▪ Slopes in excess of 15% COTA PUD Wetlands Wetland Buffer CWQZ 100-yr Floodplain 4 5 Proposed Amendment ▪ 3rd Amendment ▪ Hotel / Convention Center in Planning Area 4 ▪ Golf Course in Planning Area 4, 5, & 6 ▪ Practice racetrack in Planning Area 8 ▪ Wetland Mitigation and Riparian Restoration 6 The COTA PUD Existing vs Proposed Lady Bird Lake Requirement Existing Proposed Green Building 2-star 2-star Water Quality Impervious Cover IPM 100% GSI + additional WQ treatment for asphalt trail 100% GSI + additional WQ treatment for asphalt trail 68% Required 68% Required 7 Green Building Basic Requirements Lady Bird Lake ▪ EV Charging Stations requirements ▪ Potable Water Use Reduction (for water features - 100% non-potable water supply) ▪ Bike Parking ▪ Energy Performance ▪ Additional requirements Link to Austin Energy Green Building Guides: Rating Documents 8 The COTA PUD Existing vs Proposed Lady Bird Lake Requirement Existing Proposed Drainage Current code Modification to 25-7-93 & 96 to allow structures associated with golf course Floodplain Modification Current code Current code CWQZ Defined Current code current code CWQZ Development specifies and limits trail crossings Development allowed in the CWQZ associated with golf course and CWQZ crossing of racetrack (1:1 mitigation for crossing required) Critical Environmental Features (CEF) Current code and as defined by wetland mitigation plan Current code and as defined by wetland mitigation plan 9 10 The COTA PUD Existing vs Proposed Lady Bird Lake Requirement Existing Proposed Restoration 14.36 acres of Blackland Prairie Restoration 14.38 acres of Blackland Prairie Restoration native restoration along asphalt trail as shown in Exhibit H native restoration along asphalt trail as shown in Exhibit H Open Space 298 acres of public open space Riparian restoration plan for areas shown in Exhibit H Surplus wetland restoration 0.87 CEF / 0.56 CEF Buffer 100 acres of open space (off site open space provided) 11 ~4.5 acre Riparian Restoration Plan Area Wetland Mitigation Area 12 The COTA PUD Existing vs Proposed Lady Bird Lake Requirement Existing Proposed Cut/Fill up to 20' in Planning Area 4 up to 20' for Planning areas 4,5,6 For golf course - cut allowed within CWQZ outside EHZ up to 10’ Admin variance for over 20ft to match grade in Planning area 4 Admin variance for up to 15 ft outside of Planning areas 4, 5, 6 w/ commensurate mitigation 13 10 ft 20 ft Practice Track Cut/Fill to match grade for Hotel Golf Course 14 The COTA PUD Existing vs Proposed Lady Bird Lake Requirement Existing Proposed Construction on Slopes Current Code Allowed in Planning Area 8 with commensurate mitigation Admin variance for construction on slopes over 15% 15 The COTA PUD Existing vs Proposed Lady Bird Lake Requirement Existing Proposed Landscape Requirements Additional 400 native trees planted Additional 400 native trees planted Additional 1000 caliper inches of native trees planted Native tree species from Appendix F Native tree species from Appendix F Native and adapted plants per Grow Green Native and adapted plants per Grow Green Central Texas Native seed stock Central Texas Native seed stock Beneficial reuse of condensate water for irrigation Pending confirmation with Austin Water staff 16 Staff Recommendations Staff recommend approval of the PUD amendment as proposed with the following conditions: ▪ An additional 0.87 acres of wetland CEF and 0.56 wetland CEF buffer will be restored above what it minimally required for mitigation. ▪ 4.59 acres of riparian restoration will be completed. ▪ An additional 1000 caliper inches of trees planted in addition to the 400 trees required. ▪ AC condensate and Rainwater will be used for irrigation. 17 Thank you Leslie Lilly Environmental Conservation Program Manager Leslie.Lilly@austintexas.gov Austin Watershed Protection