What Is a TR1 Inspection? NYC DOB Progress Inspections

Starting a construction project in New York City requires navigating a complex maze of permits, building codes, and safety regulations. One of the most critical hurdles to cross before, during, and after construction is the TR1 inspection process. Managed by the New York City Department of Buildings (DOB), this procedure ensures that structural, mechanical, and safety systems comply with local code. Navigating this requirement efficiently is essential to keeping your project on schedule and avoiding costly stop-work orders.

Need to schedule a TR1 progress inspection or special inspection for your NYC project? AKS Architectural & Engineering Services LLP provides fast online booking and transparent, flat-fee pricing at EZTR1.com. Order your inspection today and avoid quote delays!

What is a TR1 Form and How Does It Govern Compliance?

The TR1 form, officially titled the Technical Report Statement of Responsibility, is the foundational document that identifies the specific inspections and testing required for a project to comply with the NYC Construction Codes. When a registered design professional (an architect or engineer) submits plans for a building permit, they must specify which inspections are required based on the scope of work. These required inspections are detailed on the TR1 form.

This document serves several vital regulatory purposes:

• Assigning Responsibility:

  It formally designates which licensed professionals or registered agencies will conduct each required inspection.

• Project Gates:

  A project cannot receive its initial building permit until a TR1 form is filed identifying the inspectors of record.

• Final Sign-Off:

  Once construction is complete, the inspector of record must sign off on the TR1 to certify that the work matches the approved plans, which is a mandatory prerequisite for obtaining a Letter of Completion or a Certificate of Occupancy.

Are Progress Inspections the Same as Special Inspections?

A common point of confusion for building owners and contractors is the difference between progress inspections and special inspections. Although both are tracked on the TR1 form and are required to satisfy NYC DOB permitting conditions, they serve distinct roles and are governed by different sections of the New York City Building Code.

Here is how the two types of inspections differ in purpose, scope, and execution:

• Progress Inspections (BC Chapter 109):

  These inspections occur at key intervals during the construction process. They verify that the overall work is progressing in substantial compliance with approved plans and general building codes. Examples include frame inspections, footing and foundation inspections, and energy code compliance.

• Special Inspections (BC Chapter 17):

  These are highly detailed, technical evaluations of specific critical materials, components, and fabrication methods. They require specialized engineering knowledge and equipment. Examples include verifying structural steel welding, concrete strength testing, and seismic resistance systems.

• The Inspector's Role:

  Progress inspectors are responsible for confirming that the overall construction meets the building layout and dimensions, while special inspectors focus on material integrity and engineering standards. Under the building code, progress inspectors are also tasked with verifying that any required special inspections have been completed successfully.

Understanding these differences helps project managers schedule the correct inspector at the right time. For example, before closing up walls, a frame progress inspection must occur, but if structural steel welding was involved, a structural steel special inspection must be completed first.

How Do You Complete and File the NYC DOB TR1 Form?

With the transition of NYC Department of Buildings operations to the online DOB NOW portal, filing a TR1 form has become a completely digital workflow. Physical paper forms are no longer accepted for new applications. Successfully completing the filing process requires careful coordination between multiple project stakeholders.

The standard process for preparing and filing a TR1 inspection record involves the following steps:

• Step 1: Plan Submission and Requirement Identification.

  The registered design professional of record (the architect or engineer who drafted the plans) identifies all progress and special inspections required for the job based on the NYC Building Code and enters them into the digital application.

• Step 2: Owner Designation.

  The property owner or authorized representative logs into the DOB NOW system to review the application and formally designate the chosen Special Inspection Agency (SIA) or progress inspector for each required category.

• Step 3: Inspector Acceptance.

  The designated Special Inspection Agency logs in to electronically sign the statement of responsibility, confirming they are qualified, registered, and agree to perform the specified inspections.

• Step 4: Permit Issuance.

  Once all parties have signed, the DOB reviews the filing. This initial filing is called the TR1 Identification of Responsibilities. Once approved, the building permit can be issued and construction can begin.

• Step 5: Inspection and Sign-Off.

  As construction progresses, the inspectors perform their onsite evaluations. After an inspection is completed successfully, the inspector uploads the technical reports and signs the TR1 form online to certify compliance, which is known as the TR1 Completion of Inspections.

Ready to book your required NYC construction inspections? Book your preliminary, final, TPP, or concrete inspections instantly online at EZTR1.com. AKS Architectural & Engineering Services LLP is your trusted partner for small and mid-size NYC projects.

The Role of a Class 2 Special Inspection Agency

Under NYC DOB regulations (1 RCNY 101-06), Special Inspection Agencies are classified into tiers based on their size, qualification, and the scale of projects they are permitted to inspect. AKS Architectural & Engineering Services LLP is registered with the Department of Buildings as an active Class 2 Special Inspection Agency, operating under the assumed name EZTR1.com.

Understanding the capabilities and restrictions of a Class 2 agency is key for project planning:

• Operational Boundaries:

  Class 2 agencies are permitted to perform inspections on small and medium-sized construction projects, typically focusing on projects under 4,000 square feet. Under the building code, Class 2 agencies are restricted from inspecting major building work, such as the construction or alteration of high-rise structures, full building demolitions, or massive expansions exceeding 10,000 square feet.

• Target Focus Areas:

  We focus our expertise on the types of projects that drive NYC's neighborhoods forward, such as commercial retail fit-outs, restaurant renovations, office modernizations, brownstone restorations, curb cuts, lobby renovations, interior apartment alterations, and residential additions.

• Pricing Transparency:

  Traditional inspection agencies often require a lengthy back-and-forth quoting process that can delay a project by days or weeks. At EZTR1.com, we have revolutionized this model by offering direct online access, flat-fee menu pricing, and instant add-to-cart checkout, allowing you to secure your inspector in seconds.

• Regulatory Expertise:

  Operating with 40 years of local construction-industry experience through AKS, our inspectors possess deep familiarity with NYC administrative codes, helping you resolve violations and secure approvals without unnecessary delays.

By tailoring our services specifically to small and mid-size projects, we provide an efficient, cost-effective alternative to larger enterprise agencies, bringing professional engineering oversight directly to your job site.

Core Types of TR1 Progress and Special Inspections

Depending on the scope of your renovation or construction project, the DOB may mandate a variety of specific inspections. AKS Architectural & Engineering Services LLP, through EZTR1.com, offers comprehensive coverage for these required inspections, allowing you to manage your entire compliance list in one place.

Some of the most common TR1 inspections required for small to mid-size NYC projects include:

• Preliminary and Final Inspections:

  A preliminary inspection under BC 109.2 is conducted before work begins to verify existing site conditions. Once construction is complete, a final inspection under BC 109.5 is required to confirm the entire project complies with approved plans.

• Tenant Protection Plan (TPP) Inspections:

  Under the 2022 NYC Building Code Section 1705.26.1, occupied residential buildings undergoing construction must have a Tenant Protection Plan in place. The DOB requires weekly inspections to verify that dust control, noise mitigation, egress pathways, and general safety protocols are maintained. You can easily schedule these mandatory weekly compliance visits through our

  Tenant Protection Plan Inspection Page

  .

• Soil and Foundation Testing:

  Before pouring concrete foundations, a footing foundation progress inspection (BC 109.3.1) and structural soil inspections are necessary. For projects requiring subgrade evaluation, we offer straightforward online booking on our

  Soil Boring and Test Pits Page

  .

• Concrete and Material Quality:

  Verifying concrete strength is one of the most critical structural safety requirements. Our certified team performs onsite sampling and concrete test cylinder testing in accordance with code standards, which you can purchase directly via our

  Concrete Test Cylinders Page

  .

• Structural Framing and Mechanical Systems:

  Once structural framing is complete, a frame progress inspection (BC 109.3.3) must be performed to verify wood or steel framing compliance before drywall or finishes are applied.

Simplify your NYC building compliance today. Browse over 100 inspection types with transparent pricing at EZTR1.com and checkout in seconds. AKS Architectural & Engineering Services LLP brings 40 years of local expertise to keep your project moving.

Commonly Asked Questions About NYC TR1 Inspections

When did special inspections replace controlled inspections?

Special inspections officially replaced the older controlled inspections system for all NYC construction projects where the permit application was submitted on or after July 1, 2008. This change aligned New York City with the International Building Code (IBC) standard, establishing stricter qualification and reporting requirements for inspectors.

Can a registered design professional perform Special Inspections?

Yes, a registered design professional, such as a Licensed Professional Engineer (PE) or Registered Architect (RA), can perform special inspections, but they must meet the specific qualification requirements outlined in Appendix A of 1 RCNY 101-06. Furthermore, they must be registered as or employed by an approved Special Inspection Agency with the NYC DOB.

Can the design professional of record perform Special Inspections for a project they designed?

Yes, the registered design professional of record is allowed to perform special inspections for their own designed project, provided there is no conflict of interest. The inspector must maintain objective professional judgment and integrity, and cannot have any financial or ownership interest in the construction company or the building itself.

Can someone serve as the director for multiple Special Inspection Agencies?

No, the NYC Special Inspection Agency rule (1 RCNY 101-06) strictly prohibits anyone from serving as a director for more than one agency. Specifically, directors must not be retained by any other agency that provides special inspection or testing services, ensuring undivided attention and oversight of the agency operations.