Most renovation projects in Brooklyn that stall do not stall on design, financing, or the contractor. They stall because the permit does not issue, and a common reason the permit does not issue is a missing ACP-5.
It is a single form. It is also a gate, and it sits earlier in the process than most owners expect.
What the form is
The ACP-5 is the Asbestos Assessment Report. A DEP-certified asbestos investigator performs a survey of the area affected by your proposed work and, if the findings allow, completes, signs and seals the form.
What it certifies is one of three things:
- the affected portion of the building is free of asbestos-containing material; or
- ACM is present but will not be disturbed by the work; or
- the amount to be abated is small enough to be a minor project — under DEP's thresholds, less than 10 square feet or 25 linear feet of friable ACM.
It is filed electronically with DEP, carries a $47 fee, and is verified by DOB before a construction permit is issued.
That last clause is the whole reason this page exists. The ACP-5 is not paperwork you catch up on. It is upstream of the permit.
When it applies, and why that is nearly always
The trigger is broad: renovation, alteration, modification, demolition or plumbing work that requires a DOB permit, in a building constructed before 1 April 1987.
Consider what that date covers in this borough. Every pre-war brownstone. Every pre-war walk-up. The post-war stock too, right up to the late eighties. For a Brooklyn owner, "my building predates April 1987" is very close to a default.
So the working assumption for any permitted job should be that an ACP-5 sits in the path until a certified investigator says otherwise.
Confirm the current requirements, thresholds and fee with DEP and DOB before relying on this summary.
The responsibility is yours
This is the part that costs owners time.
The building owner is responsible for having the asbestos survey performed by a DEP-certified asbestos investigator. Contractors routinely coordinate it, and a good general contractor raises it in the first conversation. But the duty is the owner's.
The failure is almost always the same, and it is a communication failure rather than a technical one: the owner assumes the contractor is handling it, the contractor assumes the owner already has one because the job was presented as ready to permit, and nobody discovers the gap until the permit application sits. That is a month, sometimes more, on a project where the scaffolding rental has already started.
Ask the question explicitly, in writing, at the point you engage the contractor: who is retaining the asbestos investigator, and when.
If asbestos is found
Then the job changes shape. Where the work constitutes an asbestos project, an ACP-7 asbestos project notification goes to DEP instead, and the work requires licensed abatement.
This is not a catastrophe. It is a different project from the one you budgeted — different timeline, different trades, different cost — and the reason to run the survey early is precisely so that you learn this while the scope is still on paper.
An owner who surveys first can decide whether to proceed, rescope, or defer. An owner who surveys late makes that decision with a mobilized crew and a running clock.
Where it belongs in a project
Put the ACP-5 at the front, ahead of permitting and ahead of the final budget:
- Scope the work in enough detail to define the affected area.
- Retain a DEP-certified asbestos investigator and get the survey done.
- Learn the result before you fix the budget — ACP-5, or ACP-7 and an abatement scope.
- File the ACP-5 with DEP, then proceed to the DOB permit application.
- Keep the filing with the building's records alongside the permit and sign-off.
For a building that renovates units on turnover, this becomes a recurring step rather than a one-time hurdle, and it is worth building into the standard turnover process rather than rediscovering each time.
Where this sits in management
Renovation work is where a building's compliance obligations concentrate — asbestos, lead, permits, and the DOB violation exposure that follows work done without them. Sequencing that correctly, and making sure the survey happens before the budget hardens rather than after, is a large part of what renovation oversight is for, alongside the wider legal and regulatory compliance calendar we run for apartment buildings.
If you have a renovation planned and no asbestos investigator retained, schedule a consultation or call 718-568-9278.
This article is general information, not legal or environmental advice, and reflects requirements as of August 2026. Thresholds, fees and filing procedures change. Confirm your project's specific obligations with DEP, DOB, and a certified asbestos investigator.