Hollywood Sign Trust Creates 3D Model for Centennial

December 17, 2023
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Updated February 9, 2026
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4 min read

The Hollywood Sign Trust Continues Celebration Of The Sign’s Centennial Year With An Historic First

3D LiDAR model of the Hollywood Sign, showcasing detailed topography and structure for preservation efforts.
An overall view of Hollywood Sign laser scan data

The Hollywood Sign Trust Partners with Apex As-Builts to Establish A Precise Historic Record of the Signs Dimensions That Will Also Be Used to Support the New Visitor Center with Digital Experiences

LOS ANGELES, Sept. 26, 2023 /PRNewswire-PRWeb/ — In the Hollywood Sign’s historic 100th year, the Hollywood Sign Trust, whose mission is to protect and preserve the Sign, is celebrating the centennial with updates including a transformative painting makeover and plans for a Visitor Center. To make more history, the latest project is a partnership with Apex As-Builts, a firm that provides comprehensive building measurement and laser scan services.

The Hollywood Sign Trust maintains the original design blueprints from which the Hollywood Sign was constructed when it was rebuilt in 1978 but they are hand-drawn documents. Apex As-Builts, Inc. was tapped to establish a precise historic record of the Sign with a thorough laser scan and an “as-built” 3D model. This “digital twin” of the Sign documents every visible square inch to a level of detail that did not exist until recent years. The exact placement of the Sign’s letters, structural supports and their unique relationship to the underlying topography are all now recorded for the first time. In addition to establishing an historic record, the results of the scan will be used for creating virtual representations, models and digital experiences in the new Visitor Center.

The exact placement of the Sign’s letters, structural supports and their unique relationship to the underlying topography are all now recorded for the first time…the results of the scan will be used for creating virtual representations, models and digital experiences in the new Visitor Center.

“The position and billboard letters on Mount Lee give the Hollywood Sign its unique form and reading, and because the letters are staggered their true x, y and z coordinates have never been precisely documented…until now,” said Jeff Zarrinnam, chair of the Hollywood Sign Trust. “Another exciting aspect of this project is the new scan can be used for creating an array of virtual activities. We also now have the exact data to reproduce the Sign if it was damaged or destroyed. This is central to the Hollywood Sign Trust’s mission to preserve the Sign and we’re thrilled to partner with Apex As-Builts on this piece of history.”

To survey the Hollywood Sign and surrounding topography, Apex As-Builts utilized LiDAR (light detection and ranging) laser scanning equipment to measure every visible element of the Sign and the unique terrain it is placed on. The placement of every bolt, conduit, I-beam and even the corrugation pattern on the Sign’s surface was documented to within 1/8″ accuracy or better. To complete this task, a network of targets was set in place before 112 individual scans were carried out at precise locations surrounding the Sign. Each individual scan is comprised of millions of points of highly accurate 3D coordinates. These individual overlapping scans are then linked together, much like a massive 3D jigsaw puzzle, to create one comprehensive set of data called a point cloud. In this case, the resulting point cloud is approximately 1.98 billion points of X, Y, Z coordinates. The LiDAR scanning process supplements the 1978 blueprints and was used as the basis for a full 3D model of the Sign and hillside.

“It has been an honor for our team to contribute to the preservation of such an iconic structure and collaborate with the Hollywood Sign Trust,” said Ryan Stenberg principal of Apex As-Builts, Inc. “Of the thousands of buildings and historic structures we’ve documented via LiDAR, this has been a singular challenge that we were eager to take on. Everyone at Apex As-Builts, including our project coordinators, surveyor and drafting specialists took a personal interest in ensuring this project was done to the highest standards. We’re confident the results of this as-built survey will be invaluable in the next stage of the Sign’s history.”

About the Hollywood Sign Trust

The Hollywood Sign Trust is a 501(c)3 nonprofit trust formed on October 7, 1978, with the express purposes of repairing, maintaining, refurbishing and providing capital improvements to the Hollywood Sign or related thereto for the benefit of the public at large and so as to help preserve and maintain the image of Hollywood as the Worldwide Center of Motion Pictures and Cinema Arts; and shall be operated exclusively for religious, charitable, scientific, literary or educational purposes. The Trust is also the official source for news and information about the Hollywood Sign and maintains the Hollywood Sign website and its social media platforms.

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