New York Laws
Title 2 - Private Property
421-J - Exemption of Capital Investment in Multiple Dwelling Buildings Within Certain Cities.

(b) No such exemption shall be granted for construction,
reconstruction, alteration or improvements unless:
(i) such reconstruction, alteration or improvement was commenced
subsequent to the effective date of the local law adopted pursuant to
subdivision one of this section by such city; and
(ii) the value of such new construction, reconstruction, alteration or
improvement exceeds fifteen thousand dollars per unit; and
(iii) a valid building permit shall have been issued.
(c) For purposes of this section the terms construction,
reconstruction, alteration and improvement shall not include ordinary
maintenance and repairs.
3. Such exemption shall be granted only upon application by the owner
of such building on a form prescribed by the commissioner. The
application shall be filed with the assessor of such city on or before
the appropriate taxable status date of such city.
4. If satisfied that the applicant is entitled to an exemption
pursuant to this section, the assessor shall approve the application and
such building shall thereafter be exempt from taxation and special ad
valorem levies as provided in this section commencing with the
assessment roll prepared on the basis of the taxable status date
referred to in subdivision three of this section. The assessed value of
any exemption granted pursuant to this section shall be entered by the
assessor on the assessment roll with the taxable property, with the
amount of the exemption shown in a separate column.
5. In the event that a building granted an exemption pursuant to this
section ceases to be used primarily for residential purposes or title
thereto is transferred to other than the heirs or distributees of the
owner, the exemption granted pursuant to this section shall cease.

6. (a) The enactment of a local law in such city may:
(i) reduce the percent of exemption otherwise allowed pursuant to this
section;
(ii) limit eligibility for the exemption to those forms of new
construction, reconstruction, alteration or improvement as are
prescribed in such local law or resolution;
(iii) provide that the exemption shall be applicable only to those
improvements which would otherwise result in an increase in the assessed
valuation of the real property but which consist of an addition,
remodeling or modernization to an existing multiple residence structure
to prevent physical deterioration of the structure or to comply with
applicable building, sanitary, health and/or fire codes.
(b) No such local law shall reduce or repeal an exemption granted
pursuant to this section until the expiration of the period for which
such exemption was granted.
7. No additional exemptions shall apply.
* NB There are 2 § 421-j's

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