Mamaroneck, NY · Westchester County

No notary required

Affidavit of Final Cost Form

Property owners or their representatives submit this form after a building-permit job is complete to report the total cost of improvements.

What this form is

This form reports the final cost of improvements covered by a building permit after the job is complete. It asks for the permit and property details, the signer’s role, and the total cost, including contractor and subcontractor fees. The Village may request contracts and invoices for review or audit, and fees for costs exceeding the amount on the permit application are due when the form is submitted.

Who needs it

The property owner, architect, engineer, or contractor on record responsible for the improvement costs submits the form after the job is complete.

How to submit it

Submit it to the city department named on the form; check the city website for current contact details.

About notarization

This document has no notary block; the signer signs and dates it, and the Village may request contracts and invoices, which the form does not say must be notarized or sworn.

How to submit this form

  1. 1

    Download The Form

    Download the Affidavit of Final Cost Form.

  2. 2

    Complete The Form

    After the job is complete, enter the permit and property details, identify your role, and report the total improvement cost.

  3. 3

    Gather Supporting Documents

    The Village may request contracts and invoices for review or audit.

  4. 4

    Submit The Form

    Submit the form to the city department named on it. Pay any fees for costs exceeding the permit application amount upon submission.

Frequently asked questions

Do I need a notary for the Affidavit of Final Cost Form?
No. The form has no notary block; the signer signs and dates it. The Village may request contracts and invoices, but the form does not say those documents must be notarized or sworn.
When do I submit the Affidavit of Final Cost Form?
The form says to submit it after completion of the job. Fees for costs above those stated on the building-permit application are due upon submission.
What information does the form ask for?
It asks for the date, permit and property details, property owner name and address, the signer’s role, and the total cost of improvements, including contractor and subcontractor fees.
How do I submit the Affidavit of Final Cost Form?
The form does not give submission contact details. Submit it to the city department named on the form; check the city website for current contact details.

Need something notarized?

This Affidavit of Final Cost Form doesn’t need a notary — but if you have another Mamaroneck form that does, a commissioned online notary can help.