Centre Island, NY · Nassau County

Affidavit of Final Cost of Construction

This affidavit reports the actual final construction cost and accompanies an application for a Certificate of Occupancy by the building permit applicant or their agent.

Simple form~10 min to notarize
  • licensed online notary
  • ~15 min average
  • Notarized PDF emailed

What you’ll need

  • Government-issued photo ID
  • Webcam-enabled device (laptop or phone)
  • This form, ready to upload as a PDF

What this form is

The form compares the estimated cost listed in a building permit application with the actual final cost and applies for a Certificate of Occupancy. The applicant states that the structure was built in accordance with applicable law to the best of their knowledge. The form says to include an Electrical Certificate and a property survey showing the building on the plot; it also notes a fee for costs above the original estimate.

Who needs it

The applicant or agent named on the building permit application uses this affidavit when applying for a Certificate of Occupancy for the structure.

Why it needs a notary

The form has a “Sworn to before me” jurat, so the applicant or agent completing the affidavit must swear to it before the notary.

How to get this notarized

  1. 1

    Download the Form

    Get the Affidavit of Final Cost of Construction from the Village of Centre Island.

  2. 2

    Fill In the Details

    Complete the permit, property, applicant, estimated-cost, and actual-final-cost information.

  3. 3

    Book an Online Notary

    Schedule a remote notarization with a commissioned online notary.

  4. 4

    Sign on Video

    Swear to and sign the affidavit during your online notary video session.

  5. 5

    Submit to the Village

    Submit the notarized affidavit with the Electrical Certificate and property survey for the Certificate of Occupancy application.

Preview the form

The blank PDF straight from Centre Island. Look it over, then upload your filled copy to start the notary session.

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Info

You’ll need ID and a webcam.

A licensed online notary will join you on video, verify your government-issued ID, witness your signature, and apply their seal. You’ll receive the notarized PDF by email when the session ends.

Frequently asked questions

How do I complete the final cost affidavit?
Enter the permit and property details, estimated and actual final costs, then swear to the affidavit before a notary. Include the Electrical Certificate and property survey specified on the form.
Do I need a notary for this affidavit?
Yes. The form includes a “Sworn to before me” jurat, meaning the person making the affidavit must swear to it before a notary.
Can I sign this affidavit remotely?
New York authorizes remote online notarization by a commissioned online notary under Executive Law §135-c. You can complete the notarization by signing during a video session.
What fee does the form mention?
The form notes a fee of $10 per thousand above the original construction cost, to be forwarded to the Village before the Certificate of Occupancy is issued.
What if I am unsure about the required documents?
The form calls for an Electrical Certificate and a property survey showing the building on the plot. Confirm with the city, town or village if unsure.

Affidavit of Final Cost of Construction in other Nassau County cities

Each city publishes its own version of this form. Pick the city where you’re filing.

Ready to notarize your Affidavit of Final Cost of Construction?

Drop your email below — we’ll hand you straight to a licensed notary in the next session.