Within all zoning districts, nonresidential developers, except for developers of the types of developments specifically exempted below, shall pay a fee equal to 2.5% of the equalized assessed value of the land and improvements for all new nonresidential construction on an unimproved lot or lots.

Within all zoning districts, nonresidential developers, except for developers of the types of developments specifically exempted below, shall also pay a fee equal to 2.5% of the increase in equalized assessed value resulting from any additions to existing structures to be used for nonresidential purposes.

Development fees shall be imposed and collected when an existing structure is demolished and replaced. The development fee of 2.5% shall be calculated on the difference between the equalized assessed value of the preexisting land and improvements and the equalized assessed value of the newly improved structure, i.e., land and improvements, and such calculation shall be made at the time a final certificate of occupancy is issued. If the calculation required under this section results in a negative number, the nonresidential development fee shall be zero.

The nonresidential portion of a mixed-use inclusionary or market-rate development shall be subject to a development fee of 2.5%, unless otherwise exempted below.

The development fee of 2.5% shall not apply to an increase in equalized assessed value resulting from alterations, change in use within the existing footprint, reconstruction, renovations and repairs.

Nonresidential developments shall be exempt from the payment of nonresidential development fees in accordance with the exemptions required pursuant to the Statewide Non-Residential Development Fee Act (N.J.S.A. 40:55D-8.1 through 40:55D-8.7), as specified in Form N-RDF, "State of New Jersey Non-Residential Development Certification/Exemption." Any exemption claimed by a developer shall be substantiated by that developer.

A developer of a nonresidential development exempted from the nonresidential development fee pursuant to the Statewide Non-Residential Development Fee Act shall be subject to the fee at such time as the basis for the exemption no longer applies, and shall make the payment of the nonresidential development fee, in that event, within three years after that event or after the issuance of the final certificate of occupancy for the nonresidential development, whichever is later.

If a property which was exempted from the collection of a nonresidential development fee thereafter ceases to be exempt from property taxation, the owner of the property shall remit the fees required pursuant to this section within 45 days of the termination of the property tax exemption. Unpaid nonresidential development fees under these circumstances may be enforceable by the City of Northfield as a lien against the real property of the owner.