03 SP-2026-0221D - ESP - Great Wave - D Permit; District 7 - Staff Presentation — original pdf

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Great Wave 3900 West Howard Lane SP-2026-0221D Brad Jackson Environmental Compliance Specialist Sr. Austin Development Services | 08/18/2026 Property Data • Located within the City of Austin Zoning Jurisdiction (Zoned LI-PDA) • Walnut Creek Watershed, classified as Suburban; Desired Development Zone • Located over the Northern Edwards Aquifer Recharge Zone • 170.18 acre site with 36 acres of Critical Water Quality Zone along the eastern boundary of site adjacent to Mopac ROW. • Critical Environmental Features – Wetlands within tributary along eastern boundary of site (approximately 6 acres in total size) • Council District 7 2 Location Site Site Location Austin ETJ Austin City Limits Edwards Aquifer Recharge Zone Edwards Aquifer Contributing Zone 3 Location 4 Existing Conditions Existing Impervious Cover: 33.85 acres (20% of Gross Site Area) 5 Critical Water Quality Zone (CWQZ) 6 Existing Topography 7 Site photos 8 Site Constraints • The site has a grade change from 790 feet to 830 feet elevation over a distance of approximately 1,600 linear feet across the limits of construction. • Cut and fill over 4 feet are required to provide a level finished floor elevation for the approximately 425,000 square foot building and associated drive aisles and loading zones. 9 Proposed Site Plan Limits of Construction: • 39 acres New Building Coverage: • 425,000 square feet Total Impervious Cover: • 34% Gross Site Area 10 Variance Request The applicant has requested variances to: 1. LDC 25-8-341 to allow cut up to 20 feet; and 2. LDC 25-8-342 to allow fill up to 20 feet. 11 Cut/Fill Exhibit – Mass Grading (“D” site plan) 12 Cut Exhibit – Final Buildout (“C” site plan) 13 Variance Recommendation Staff recommends the variances, with conditions, having determined that the findings of fact per LDC 25-8-41 have been met. 14 Variance Conditions Staff recommends the following variance conditions: 1. Tree mitigation requirements will be fully met by planting trees on site instead of paying into the Urban Forest Replenishment Fund 2. 2.79 acres of riparian area will be enhanced with native, herbaceous plantings 3. Livestock and any other agricultural uses will no longer be permitted in the detention pond areas of the site 4. Grading with the proposed consolidated site plan associated with this project will not exceed the cut and fill limits shown on the exhibits provided with this variance request beyond necessary, incidental changes approved by City staff. 15 Thank you Next the applicant will provide their presentation 16 Variance Conditions from Env. Commission 1. Reduction of overall footprint of the manufacturing building by ten percent 2. Exceed tree mitigation requirements at 150 percent to increase the likelihood of a full 1:1 replenishment of lost trees, given local survival rates; with a minimum of 676 trees planted 3. Use of solar panels on buildings and parking structures to reduce noxious energy impact and to shade the parking area 4. All cut and fill limestone and soil products will remain on site 5. On-site water reclamation for manufacturing efforts, and a rain-barrel catchment system for landscaping maintenance 6. Ensure a “no-mow zone” within 200 ft of the Critical Environmental Feature (CEF) (along MoPac), to improve water quality and provide habitat for biodiverse species 17 Variance Conditions from Env. Commission 7. 100 percent native planting throughout the site, including trees; walnut trees, live oaks, Ashe juniper, and Maximilian sunflowers will be included in the species list; no ornamental trees will be included 8. Landscape management plan for the life of the project, in perpetuity, that is both bird friendly and wildfire preventive 9. Utilization of a “green” company for pest control management 10. No herbicide or pesticide use on the exterior of the site 11. Ensure bird-friendly building design best practices and warm tone lighting with bird safe reduced reflectivity glass while staying in compliance with International Society for Pharmaceutical Engineering (ISPE) code 18 Variance Conditions from Env. Commission 12. Ten percent of parking spots will include electric vehicle charging stations 13. Trees, bioswales, and rain gardens in the parking lot area and making sure that the trees will create shade along walking paths 14. Inclusion of green outdoor rest and recreational areas for employees 15. Use of terraces and retaining walls made of natural building materials that fit the area such as limestone 19