20240306-003: 311-315 South Congress PUD Staff Presentation — original pdf

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311-315 South Congress PUD 311 S. Congress Avenue C814- 2023- 0027 Leslie Lilly Environmental Conservation Program Manager Watershed Protection C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T C814-2023-0027 SITE Site Location Austin ETJ Austin City Limits Edwards Aquifer Recharge Zone Edwards Aquifer Contributing Zone C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T Site Background • Proposed new PUD • Existing commercial development • Current site – 0.81 acres • Full Purpose Jurisdiction • Council District 9 • Greater South River City Combined NPA SITE C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 3 • Mae Crockett Estate Subdivision • Platted 1976 • Existing development occurred prior to current environmental requirements C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T • Imagine Austin Corridor • South Central Waterfront Imagine Austin Town Center C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 5 Environmental Features • No Critical Water Quality Zone • No Critical Environmental Features • No naturally occurring slopes greater than 15% • Lady Bird Lake Watershed (Urban) • Outside of Edward Aquifer Recharge and Contributing Zone • No 100-year fully developed floodplain • 96.7% impervious cover C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T Land Use Plan C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 7 Proposed Environmental Code Modifications • None C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T Proposed Environmental Superiority • The PUD will comply with the City of Austin’s Green Building Program at a 3-star level. • The project will be compliant with the LEED pilot Bird Collision Deterrence credit in regard to the Bird Collision Threat Rating for reflective glass within the Façade Zone 1 area as defined by LEED. Façade Zone 1 shall not have greater than 15% reflective glass • The project does not request any exceptions or modifications to environmental regulations and will develop under the current code as of the date of the approval of the PUD. • 100% of water quality controls required for this site will be treated on-site as opposed to payment of the fee-in- lieu of on-site treatment. • 1,000 cubic feet of water quality volume will be provided for an off-site area, including a portion of Congress Ave. • The project will incorporate approximately 250 linear feet of off-site storm improvement in Congress Ave. • All required tree plantings shall utilize native tree species selected from Appendix F of the Environmental Criteria Manual (Descriptive Categories of Tree Species) and utilize Central Texas Native seed stock. • All new street trees within the PUD will be a minimum of 5.5 caliper inches and a minimum of 14 feet in height and will contribute to the biodiversity of tree species of the site and this area of South Congress in addition to being of a species that will thrive in the proposed rain gardens. • The PUD shall comply with the dark skies regulations in conformance with the Austin Energy Green buildings Standards identified in ST7 “Light Pollution Reduction”. • All irrigation on site will be “off grid” of potential water utilizing either purple pipe, rainwater captured on the site and/or condensate capture. C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T Proposed Environmental Superiority • Include several landscape solutions that meet the intent of the pending Functional Green requirements. This will be achieved with the installation of 50% or 455 square feet of raised terrace garden planters to be planted with xeriscape plantings with a focus on pollinator friendly species. • Utilize methods to support local Austin biodiversity through innovative native plant landscaping and/or rooftop installations. • Solar power generation will be incorporated into the building design and will include a minimum of 2,000 gross square feet of area dedicated to a roof-top mounted solar panel array. • The project will contribute to biodiversity through an urban beekeeping initiative. • Meet or exceed the landscape requirements in Subchapter E by providing a diverse mixture of landscaping and utilize drought-resistant non-toxic plants. • 100% of all non-turf plant materials shall be selected from the Environmental Criteria Manual Appendix N (City of Austin Preferred Plant List) of the “Grow Green Native and Adaptive Landscape Plants Guide.” • An integrated pest-management plan will be provided. • As part of the PUD, the project will prohibit uses that may contribute to air or water quality pollutants. C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T Recommendation S t a f f r e c o m m e n d s a p p r o v a l o f t h e P U D w i t h t h e p r e v i o u s l y l i s t e d s u p e r i o r i t y e l e m e n t s a s c o n d i t i o n s . C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T Questions? C o n t a c t I n f o r m a t i o n : L e s l i e L i l l y l e s l i e. l i l l y @ a u s t i n t e x a s . g o v C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T