Preservation Planning

Preservation Planning is vital to preserving our islands’ historic heritage, and MASON is proud to offer this rewarding consulting service by our architectural historians and historical architects.

Our expertise encompasses the development of diverse planning documents; design guidelines for historic buildings, districts or zones; maintenance manuals and guidelines for historically appropriate repairs; and custom treatment recommendations for unique resources.

With decades of experience assessing properties’ historic qualities under our belt, we’re attuned to the delicate balance that preservation planning requires. In close collaboration with our clients, we craft these nuanced documents to ensure preservation objectives and future development goals are met.

Recognizing the meticulous care and maintenance individual historic buildings and their materials require, we also develop maintenance manuals for clients with vast inventories. When clients begin planning major renovations to historic buildings, MASON is often enlisted to develop Historic Structure Reports (HSR), which identify specific, character-defining features and offer recommendations for appropriate treatment per the Secretary of the Interior’s Standards (SOIS).

Blaisdell Arena under construction. Research in preparation for a Historic Structure Report


Historic Hawaii Foundation

  • Preservation Honor Award for Joint Base Pearl Harbor-Hickam Concrete, Masonry, and Metal Structures Repair and Maintenance Manual for Historic Facilities, 2018
  • Historic Preservation Honor Award for Treatment Guidelines for Historic Facilities at Joint Base Pearl Harbor-Hickam for Commander, Navy Region Hawaii, 2017
  • Historic Preservation Commendation for Wooden Structures Repair Manual, 2012
  • Historic Preservation Honor Award for Historic Asset Management Plan (HAMP), 2012
  • Historic Preservation Honor Award for Historic Context Study and Repair & Maintenance Manual for Historic Military Housing, 2005


  • Design Guidelines, such as the Kokee Design Guidelines and Punahou School Design Guidelines (with PBR Hawaii).
  • Maintenance manuals and guidelines, such as the Wooden Structures Repair Manual for Historic Facilities for Commander, Navy Region Hawaii (2011), and the Illustrated Manual for Repair and Maintenance of Historic Military Family Housing in Hawaii (2002)
  • Building treatment recommendations, such as those developed for the Commander, Navy Region Hawaii Integrated Cultural Resource Management Plan (ICRMP), 2002
  • Evaluation Assessment and Treatment Recommendations – Hickam Field, Joint Base Pearl Harbor-Hickam (JBPHH), Hawaii. 2014.
  • Neal S. Blaisdell Center Historic Structure Report, 2018

Research for Guam International Airport planning project
Design Guidelines for Historic Kokee, Halemanu and Puu ka Pele Camp Lots

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