The surrounding woodland remains largely untouched, an “experimental topological landscape” in Holl’s words. But the foundation has also taken active conservation steps. A 2023 ecological survey by Hudsonia documented more than 200 plant species on the property — about 80% native to New York — along with sensitive habitats and forest-interior bird species.

“The Hudsonia work is helping us shift from an intuitive relationship to the land to a much more informed, long-term approach: protecting seed trees, supporting native species, and thinking carefully about climate resilience,” ‘T’ Space Curator and Director Susan Wides said.

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Inside, the archive holds more than 1,200 models, 4,400 books and 20,000 watercolors. There’s also furniture, correspondence and material samples documenting Holl’s process, from early concepts to finished works like a major expansion of the John F. Kennedy Center for the Performing Arts or the complex of towers interlinked around a public park in Beijing.

“His design approach is highly iterative rather than linear, and this makes it fascinating to see the evolution of a project from its initial concepts,” Ambrose said. “I’ve seen projects go through as many as 15 different schemes before arriving at the final direction.” Link to full article