The Petroleum Building Office to Residential Conversion | DOD 2026 Insider Tour

About the tour: Join the Denver Architecture Foundation and Gensler for a walking tour of the Historic Petroleum Building ahead of its upcoming conversion from office to residential. The project’s Design Director will showcase the building as it stands currently and provide an overview of the conversion, including design concept and current state of the project. The tour will showcase one of the vacant floors where units are planned.

About the building: The Historic Petroleum Building is a 14-story tower located in the heart of Upper Downtown. Originally built in 1959, the Petroleum Building has seen many changes in its lifespan starting as an office primarily serving Oil & Gas companies then Public Defenders and now is finding a new use as residential with an upcoming conversion. The facades will be preserved and painted to return the building back to its original historic character while the inside is transformed into an apartment building.

About the tour guide: Alex Garrison is the Design Director at Gensler’s Denver office and is leading the conversion of the Petroleum Building. Alex works across mixed-use, adaptive reuse, hospitality, office, and airport projects.

Accessibility: This tour is fully accessible with elevator access to the vacant floor in the building.

Refund policy: The Denver Architecture Foundation is a nonprofit educational organization. Ticket sales support the Foundation in continuing to provide quality events to the public. We are unable to provide refunds or credits for any reason less than 14 days prior to the event.

Please note that DAF tours take place rain, snow or shine. If your tour includes an outdoor portion, please dress for the weather. DAF staff will contact all attendees directly should a tour be cancelled for any reason.