Fire alarm as-built drawings are an important piece of acquiring your Letter of Approval from the FDNY.

Why are as-builts important?

FDNY requires an as-built riser diagram to be submitted as part of your request for inspection.  The FDNY inspect will verify the accuracy of the as-built drawings during their inspection.  Additionally, it is a requirement to keep your up to date as-built drawings at the fire command center. As-built drawings keep a record of what is installed allowing the fire alarm company to reference when making repairs. 

What should be included in the as-built drawings?

As-built drawings need to comply with several codes, rules, and bulletins, as follows: BC 907.18, FC 907.19, 3RCNY S105-01 and FDNY Technology Management Bulletin 2012-03-17.  

The as-built drawings should include the following:

  • As-built drawings must be formatted and printed on 11×17
  • Must include a title block with the following information 
    • Name, address owner and occupant information 
    • PW1 number with affixed barcode or tm-1 number 
    • Statement noting as built
    • Date and any previous revision dates 
  • Riser diagram   
  • Input/output programming matrix 
  • Functionality statement executed by the engineer, architect, electrician, or licensed fire alarm vendor 

How can Banksia help?

At Banksia, we assist our clients by reviewing the as-builts to verify all information complies before the final FDNY inspection. For more information on as-builts and other fire alarm questions, please contact Peter Linden at

About Banksia:

Banksia is a fire protection and life safety consulting firm located in New York City. We work with clients in commercial real estate, energy, industrial, residential, science, and more to create spaces that meet their goals — and meet all compliance requirements.

Peter Linden

About Peter Linden

Peter brings over 20 years of experience in fire alarm design, installation, service, and consulting. He has many years of operations and construction management. Peter has managed installation projects in all sectors including institutional facilities, high rise commercial, and residential buildings. Peter is certified NICET Level 4 in fire alarm systems, project management professional (PMP), and licensed in the State of New York to service and install fire alarm systems.