August 23, 2016

Visiting our History

Today we raise a glass in honor of the 50-year anniversary of The National History Preservation Act (NHPA), which created the National Register of Historic Places, the list of National Historic Landmarks, and the State Historic Preservation Offices.

We are proud to provide BIM consulting, training, and support to firms that advance the goals of the NHPA, including Page & Turnbull. This California-based firm was founded shortly after the NHPA. It brings together architects, conservators, architectural historians, and planners to help our communities realize the aesthetic, cultural, economic, environmental, and historical benefits of preservation.

Page & Turnbull is headquartered in San Francisco, with branch offices in Los Angeles and Sacramento. Those familiar with San Francisco will know some of the buildings Page & Turnbull has worked on: The Exploratorium at Pier 15, the Ferry Building, and the Walt Disney Family Museum. Here are a few details of some of its other preservation projects that they work on around the country:

Royal Presidio Chapel, Monterey, CA

Page & Turnbull was part of a team that rehabilitated this chapel, which was designed in 1792 and completed in 1795. It is the oldest existing stone building in California and one of the country’s earliest national landmarks.


Meyer-Buck Estate, Stanford, CA

Built in 1920, this Stanford University building stood in ruins after the 1989 Loma Prieta earthquake. It underwent full rehabilitation in 1999, and nearly every surface of each structure received restoration treatment. 

Desert View Watchtower, Grand Canyon

The original design of this 1932 watchtower allowed for deterioration, resulting in cracking and water intrusion. A 3D laser scan identified crack locations, crack monitors analyzed movement, and hidden expansion joints were introduced to support subsequent repairs. 

Without the NHPA, Page & Turnbull, and other historic preservation firms and conservation organizations, we may not have these and thousands of other structures to enjoy. As we celebrate NHPA’s 50-year anniversary, we toast the work that has been done to save these beautiful, interesting, and important historic structures.