As per Chapter 17 of the Building Code, renovation work may require certain Special and Progress Inspections to be performed during and at the end of construction as outlined in the table below. Prior to Approval, the Applicant of Record is required to identify all required Special and Progress Inspections (BC 1704.1). Prior to DOB permit issuance, the Owner must typically engage a registered Special Inspection Agency (SIA) who will take responsibility for the Special and Progress Inspections if they are also an SIA. Per BC 1704.1.2, the Contractor cannot hire the special inspector.
Based on the scope of work, a renovation project may be required to comply with the following Special and Progress Inspection requirements:
Structural Steel |
May include steel welding, High Strength Bolting and Steel Details (BC 1704.3) |
Concrete – |
Required where the total concrete placement on a given project is more than 50 cubic yards or other conditions. Precast may be needed during façade renovation project. (BC 1704.4). |
Wood – Installation of Prefabricated I-Joists |
Are subject to Special Inspections in accordance with BC 1704.2 and the requirements of BC 2303.1.2, (BC 1704.6.3). |
Wall Panels, Curtain Walls and Veneers |
Required for exterior architectural wall panels and the anchoring of veneers designed for installation on buildings above a height of 40 feet. Special Inspection of masonry veneer on such structures shall be in accordance with Section 1704.5 (BC 1704.10). |
Sprayed fire-resistant materials |
Special Inspections for sprayed fire-resistant materials applied to roof and wall assemblies, and to structural members, shall be in accordance with Sections 1704.11.1 through 1704.11.7. |
Structural Stability – Existing Buildings |
Any modification of existing structural systems or elements, such as columns, girders, beams, bearing walls, etc. where the stability or integrity of the structural system is impacted, in accordance with Sections 1704.20.6 through 1704.20.10. |
Excavations – Sheeting, Shoring and Bracing |
Methods employed to protect the sides of excavations shall be subject to Special Inspections in accordance with Sections BC 1704.20.3, BC 1704.20.2 and BC 1814. |
Fire-resistant Penetration and Joists |
Special Inspections for penetrations of fire-resistant elements and assemblies, and related firestops in accordance with BC Sections 1704.27.1 and 1704.27.2. |
Flood Zone Compliance |
Special Inspection for flood zone compliance shall be as required by BC Appendix G and BC 1704.29 . Also progress inspection for lowest floor level per BC 110.3.2. |
Masonry |
Load bearing masonry, glass unit masonry and masonry veneer shall be inspected and verified in accordance with the requirements of sections 1704.5.1 through 1704.5.3, depending on the structural occupancy category of the building or structure. |
Footings, and Foundation |
Footing and foundation inspections shall be made after excavations for footings are complete and any required reinforcing steel and required forms are in place as per BC 110.3.1. |
Structural Wood Frame |
Inspections shall be performed for wood structural framing to determine compliance with the approved construction documents as per BC 110.3.3. |
Fire-Resistance Rated Construction |
Fire-resistance-rated partitions, walls, floors, ceilings, shafts, and shutters as per BC 110.3.4. |
Mastic and Intumescent Fire Resistant Coatings |
Fire resistant coating must be applied on structural elements as required by BC 1704.12. |
Smoke Control System and/or Smoke Purge System |
Mechanically operated smoke removal system, as required by BC 1704.15 and 1704.16, and BC 909 and/or BC 916. |
Raising and Moving a Building |
Raising and moving existing buildings, because all or part of it is located in flood zone, as required by BC 1704.20.5, and BB 2015-010. |
Chimneys |
Verify the chimney and its liner are sealed properly in accordance with BC 1704.26. |
Luminous Egress Path Markings |
Various egress path components marked with luminous signs and other markings per BC 1704.30, and BC 1024.8. |
Seismic Isolation |
Structure in compliance with seismic isolation requirements in BC 1707.8, BC Chapter 16 and/or 1968 RS 9-6 |
Energy Code Compliance Inspections |
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During the renovation work, DOB inspections may be required at various stages of completion, as well as for final completion of all permitted work. Based on the scope of work, the following inspections from different Department Inspection Units may be required:
Contractors and property Owners are responsible for scheduling and completing all required inspections. Prior to scheduling such an inspection, Contractors must:
*Note: Contractors must also prepare for progress and special inspections by SIA in a similar manner to what’s indicated above.*
During the course of completing mechanical system work, contractors should check the following to ensure regulatory and code compliance with NYC Energy Conservation Code: Commissioning is required on newly installed systems with a cumulative input heating capacity >600,000 BTU/h and/or cooling capacity > 480,000 Btu/h.
Commissioning preliminary report: Must be submitted to the Department prior to mechanical sign-off.
Commissioning final report: Must be submitted to the Department 18 months after certificate of completion, as required by NYCECC Section C408.
Contractors have the option to either require a DOB Inspection or submit a self-certification of the completed work, but only if applicable to a particular inspection. Contractors opting to self-certify must submit a notice of intent to self-certify, with the dates of these self-certified inspections to the Department, and follow-up with the submission of results for self-certified inspections.
DOB inspection unit conducts a random audit of all self-certified notices to ensure compliance of inspected work with Code and regulations.
An online tool for scheduling appointments for required DOB inspections must be used. This system, DOB NOW: Inspections, provides the ability to request and cancel appointments online, as well as view inspection results and documentation.