Mamaroneck, NY · Westchester County

No notary required

Cost Affidavit Certificate of Occupancy/Letter of Completion Request Form

Owners and qualified signers use this form to request a Certificate of Occupancy or Letter of Completion and report the construction’s final cost.

What this form is

Use this form to request a Certificate of Occupancy or Letter of Completion for a property in the Town of Mamaroneck. It asks for the permit and property details, owner information, a statement about construction compliance and any variances, and the actual final construction cost. The form includes signature lines for an architect, engineer, contractor, or owner.

Who needs it

Property owners and the architect, engineer, contractor, or owner signing the statement use this form when requesting a Certificate of Occupancy or Letter of Completion.

How to submit it

Submit it to the city department named on the form; check the city website for current contact details. The form lists the Building Department’s address, phone number, and email.

About notarization

This document is signed without a notary; the signer just prints their name and dates and signs the form.

How to submit this form

  1. 1

    Download The Form

    Download the Cost Affidavit Certificate of Occupancy/Letter of Completion Request Form.

  2. 2

    Complete The Form

    Enter the date, permit number, property location, owner information, compliance statement, variances if applicable, and actual final construction cost.

  3. 3

    Sign And Date

    The architect, engineer, contractor, or owner prints their name, signs, and dates the form.

  4. 4

    Submit To The City

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

Frequently asked questions

What is the Cost Affidavit Certificate of Occupancy Request Form?
It is used to request a Certificate of Occupancy or Letter of Completion. It collects property and owner details, a construction compliance statement, and the actual final construction cost.
Who signs this form?
The form provides a signature line for an architect, engineer, contractor, or owner. It also asks for the signer’s printed name and the date.
Do I need a notary for this form?
No. This document is signed without a notary; the signer prints their name and dates and signs the form.
How do I submit this form?
Submit it to the city department named on the form; check the city website for current contact details. The form lists the Building Department’s address, phone number, and email.

Need something notarized?

This Cost Affidavit Certificate of Occupancy/Letter of Completion Request Form doesn’t need a notary — but if you have another Mamaroneck form that does, a commissioned online notary can help.