One Wall Street Unveils Landmark Plaque at Entrance; Live in Art Deco Masterpiece from $1.15 million CityRealty highlighted the unveiling of One Wall Street’s landmark plaque. The iconic Art Deco structure, originally an office building, stands as NYC’s grandest office-to-residential transformation. Sarah Carroll, chair of the Landmarks Preservation Commission, extolled its emblematic value. Now open for occupancy, prices start from $1.15M for studios, going up to $9.75M for three-bedrooms. Architect Ralph Walker’s legendary exterior has been diligently restored, juxtaposing the building’s rich history with the modern luxury in its interiors.