Local Law 97: what NYC office and industrial owners need to model now.
The 2024–2029 caps are the forgiving tier. The 2030 caps are the ones that decide whether your building carries a penalty line for the rest of the decade. This page pairs the compliance math with the operating case.
The rule in one paragraph
Local Law 97 sets annual carbon intensity caps for buildings over 25,000 sq ft, enforced by the NYC Department of Buildings. The 2024–2029 caps are the easy tier. The 2030–2034 caps step down sharply, and many currently-compliant buildings will not be compliant after 2030 without material intervention.
Compliance is measured on reported annual emissions from energy used at the property, converted with published coefficients by fuel. Exceedance is billed per metric ton of CO2e above the cap, which makes the exposure a recurring operating line rather than a one-time fine.
Who it applies to
Buildings over 25,000 gross sq ft in New York City, and two or more buildings on a single tax lot exceeding 50,000 sq ft combined.
Defined exemption and alternate-compliance classes exist, including rent-regulated housing and certain other building classes. Confirm your building's covered status and pathway with counsel.
What it costs / what it pays
Penalty exposure is $268 per metric ton of CO2e above the annual cap. For a large office asset, a modest intensity overshoot compounds into a six- or seven-figure annual line, and an eight-figure exposure across a portfolio held through 2034.
The capital side is the second cost: envelope, MEP and controls upgrades driven by LL97 compete for the same capital budget as leasing, TI and debt service.
How NOI's structure fits
On-site solar generation counts against the cap because it displaces grid electricity with clean generation at the property. Battery storage strengthens the case where it enables peak avoidance or islanding.
NOI's ownership structure means no capex hit at a moment when many owners are already committing capital to LL97-driven envelope, MEP and controls upgrades. NOI finances, builds, owns and operates the asset; the owner signs a site license and receives income.
Timeline
- Annually, by May 1Report prior-year emissions to DOB.
- 2024–2029First compliance period caps in force.
- 2030–2034Caps step down sharply; most exposure appears here.
- 205060% reduction target across the covered stock.
Talk to us about this on your building
Send the address and twelve months of bills. We come back with the compliance position and the operating case together.
Other programs in this section
Boston's emissions performance standard, with Alternative Compliance Payments and a 2030 threshold drop.
ComplianceWashington DC's Building Energy Performance Standards, enforced on cycles with compliance pathways.
IncentiveNYSERDA's declining-block incentives for commercial and industrial solar across New York.
IncentiveNew Jersey's Successor Solar Incentive, community solar program, and what changed after TRECs.
IncentiveSMART II tariff levels, storage adders and low-income adders — the incentive that pairs with BERDO.
IncentiveConnecticut's non-residential renewable energy solutions tariff plus Energy Storage Solutions incentives.
IncentiveAlternative Energy Credits, PPL and PECO rebate programs, and the Act 129 efficiency framework.
This page reflects our understanding as of September 18, 2026. Regulatory numbers and program rules move. Confirm current statute specifics with your tax and legal advisors before signature.