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HISTORIC LANDMARK COMMISSION APPLICATION FOR A CERTIFICATE OF APPROPRIATENESS JUNE 4, 2025 HR-2025-039309 HERITAGE GRANT RECIPIENT: SPRING 2025 HUSTON-TILLOTSON UNIVERSITY – OLD ADMINISTRATION BUILDING 900 CHICON STREET 4.0 – 1 PROPOSAL Replace the wall membrane present at the basement walls to prevent moisture infiltration and water damage. PROJECT SPECIFICATIONS 1. Remove existing membrane 2. Clean, inspect, and repair walls where needed 3. Seal cracks and install new membrane 4. Install drainage protection at building exterior ARCHITECTURE The Old Administration Building is a three-story structure with a partial basement located on the campus of Huston- Tillotson University. It is constructed of masonry units with extruded mortar joints, with the basement clad in plaster. The entire building is painted white and features a covered entry at one corner. There is a large amount of fenestration at all levels, including the basement walls where the surrounding grade slopes downward. DESIGN STANDARDS The City of Austin’s Historic Design Standards (March 2021) are based on the Secretary of the Interior’s Standards for Rehabilitation and are used to evaluate projects at historic landmarks. The following standards apply to the proposed project: Repair and alterations 1. General standards Historic material is prioritized to be retained, with only sacrificial materials, such as the existing moisture membrane, to be removed. 2. Foundations Basement wall foundation will be repaired to match the existing material. 4. Exterior walls and trim By introducing drainage that will prevent moisture from infiltrating the walls, the exterior material will be at a reduced risk for water-related damage. Summary The project meets the applicable standards. COMMITTEE FEEDBACK Consider a French drain or other drainage systems as part of a larger moisture mitigation plan, with an emphasis towards a system that can be cleaned of debris to ensure a long lifespan. STAFF RECOMMENDATION Approve this Spring 2025 Heritage Grant project in concurrence with Architectural Review Committee feedback. LOCATION MAP 4.0 – 2 PROPERTY INFORMATION Photos 4.0 – 3 Grant application, 2025