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Historic Preservation: The Latest Architecture and News

Visualizing an Art Deco Icon: The Reimagined Waldorf Astoria

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The quintessential symbol of Manhattan, Waldorf Astoria New York officially reopened for the public this year after an extensive renovation. Over its long history, the property has undergone numerous transformations, from its 19th-century beginnings to the modern landmark that stands between Park Avenue and Lexington Avenue.

Reimagining a building that pioneered modern hospitality—a jewel in New York's skyline—posed a challenge that required close collaboration between preservationists, 3D visualizers, architects, and designers. Together, they worked to preserve its protected architectural heritage while meeting contemporary expectations for craftsmanship and comfort.

Architectural Rebuilding as Cultural Memory: The Paradox of Ever-Fresh Heritage

Architecture—one of the few cultural artifacts made to be publicly lived with, preserved, and often capable of standing for centuries—contributes significantly to the cultural identity of places and people. Historically, buildings have expressed institutional attitudes, influence, and power; they are clear demonstrations of culture. Yet longevity complicates preservation: when a structure is rebuilt, repaired, or entirely reassembled, in what sense is it still the same building?

There's the classic Ship of Theseus puzzle from Plutarch. if a ship's planks are replaced one by one over time, is it still the same ship? Thomas Hobbes adds a twist—if the original planks are reassembled elsewhere, which ship is "the original"? The paradox tests what grounds identity: material fabric, continuous use and history, or shared recognition. In architecture and conservation, it reframes preservation as a choice among keeping matter, maintaining form and function, or sustaining the stories and practices that give a place meaning.

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RIBA Announces the Shortlist for the 2025 Stirling Prize

The Royal Institute of British Architects (RIBA) has revealed the six shortlisted projects for the 2025 RIBA Stirling Prize. Since its establishment in 1996, the prize has recognized works that respond to contemporary challenges while shaping more inclusive futures. This year's shortlist spans a diverse range of scales and programs, including the restoration of one of the nation's most iconic landmarks, a pioneering medical research facility, a contemporary almshouse designed to reduce isolation among older residents, a university's "factory for fashion," a fully accessible home, and a creative house extension. The winner of the award will be announced live at the Stirling Prize ceremony on 16 October in the Roundhouse, London.

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Sweden Transports Century-Old Church Across Town to Escape Mine Expansion

Between August 19 and 20, 2025, thousands of spectators watched as one of Sweden's largest wooden buildings was lifted onto beams and wheeled across town. The Kiruna Church, constructed between 1909 and 1912, was designed to echo the form of a Sámi hut in Sweden's far northern region, within the Arctic Circle. The building was designed by architect Gustaf Wickman, who served as the church's architect at the time, and combines elements of Gothic Revival with an Art Nouveau altar. The building, one of the city's main tourist attractions, was moved to a new location between the cemetery and the new city center to prevent damage caused by the expansion of the local mine.

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UNESCO Adds 26 New World Heritage Sites Highlighting African Heritage and Shared Prehistory

During the 47th session of the World Heritage Committee, held from July 6 to 16, 2025, at UNESCO Headquarters in Paris, France, 26 new properties were inscribed on the World Heritage List. In addition to examining new nominations, the Committee reviewed the conservation and management of existing sites, addressed the impact of climate change on heritage, and approved the extension of two existing sites to create new transboundary natural parks. According to UNESCO, the session placed the work of local communities at the center of safeguarding policies, reinforced efforts to preserve African heritage, and acknowledged the growing recognition of remembrance sites and the protection of humanity's shared prehistory. These 26 properties, located across 26 countries, now benefit from the highest level of international heritage protection.

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Grand Palais in Paris Reopens Following the Restoration by Chatillon Architectes

The Grand Palais in Paris has reopened to the public after the most comprehensive renovation in its 120-year history, led by Paris-based Chatillon Architectes. Originally built for the 1900 Universal Exhibition, the Grand Palais has long stood as a symbol of French cultural excellence, technical ingenuity, and architectural ambition. Following the reveal of the restored Nave for the 2024 Paris Olympics, the entire 77,000-square-meter building has now been renewed to enhance spatial clarity, restore original volumes, and transform the visitor experience. The project introduces expanded public access, new exhibition spaces, restaurants, and improved circulation, while remaining rooted in the building's architectural legacy.

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Historic Materials in the Digital Age: How Digitally Assisted Stone Carving Adds a New Dimension to Heritage Restoration

Heritage restoration has always been an intricate process that requires delicate balancing between preserving the integrity of historic materials while integrating contemporary techniques that can enhance accuracy, efficiency, and resilience. With the restoration process of Parliament Hill in Ottawa, Canada's capital city, this intersection of tradition and technology is now on full display. The East Block, built in 1865, offers a compelling example of how digital tools can support the efforts of heritage restoration and contribute to a centuries-old craft such as stone carving.

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Los Angeles Approves Adaptive Reuse Ordinance 2.0 to Tackle Housing Shortage

The Los Angeles City Council has approved the revised Citywide Adaptive Reuse Ordinance (Citywide ARO), which is planned to take effect in 2025. Building on the success of the 1999 ordinance, which facilitated the creation of over 12,000 housing units in Downtown LA, the updated policy aims to address the city's ongoing housing crisis and repurpose underutilized buildings.

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