Understanding Local Law 152 In New York City 53069
Understanding Nyc's Local Law 97 For Sustainable BuildingsLocal Law 97 Compliance: The Ultimate Guide for NYC Building Owners
Local Law 97 (LL97), part of NYC’s Climate Mobilization Act, is an industry-changing building emissions laws in the U.S. It targets carbon emissions from buildings, which account for the vast majority of the city's greenhouse gases.
From 2024 onward, most buildings over 25,000 square feet must comply strict emissions caps. These limits become more demanding in 2030, and non-compliance comes at a high cost.
Who Needs to Comply with LL97?
LL97 covers structures that are:
Larger than 25,000 square feet
Two or more buildings together surpassing 50,000 sq ft
Cooperative residential buildings above the threshold
Not all properties fall under LL97, including houses of worship, NYCHA housing, and buildings with significant affordable housing — though many may still face reporting requirements.
What Counts Toward Emissions?
To calculate emissions under LL97 involves tracking energy usage from various sources, including:
Power and heating fuel
Non-electric energy sources
City-delivered thermal systems
The Department of Buildings (DOB) provides calculated multipliers to convert energy usage into greenhouse gas emissions in metric tons of CO2e (carbon dioxide equivalent).
Emission Limits by Year
From 2024 to 2029, LL97 sets initial carbon caps. These limits are based on the property’s use type — for instance, office, residential, or retail. The 2030–2034 phase lowers the limits, making early improvements essential.
Buildings that exceed emissions caps in any given year will face a penalty of $268 per metric ton of CO2e above the threshold.
Steps to Get Ready
Property owners should take proactive measures to ensure compliance. Recommended steps include:
Perform an Energy Audit – Hire an engineer or sustainability consultant to assess energy use and identify inefficiencies.
Benchmark Your Energy Use – Use tools like ENERGY STAR Portfolio Manager to track usage over time.
Create a Decarbonization Plan – Develop a strategic roadmap that outlines capital improvements, timeline, and costs.
Implement Retrofits – Upgrade HVAC systems, switch to LED lighting, insulate walls and windows, and invest in renewable energy where possible.
Staying Compliant with Documentation
Starting in 2025, building owners must report yearly carbon data based on the previous year’s performance. These reports must be signed off by a licensed architect or engineer.
Not filing the report can result in a $0.50 per square foot monthly fine, in addition to other penalties for inaccurate or false reporting.
Retrofit Strategies and Energy Upgrades
To achieve compliance, owners can invest in a variety of energy efficiency upgrades:
Modern HVAC systems
Clean energy solutions
Weatherization
Upgrading boilers and chillers
There are financial support tools available through agencies like NYSERDA and utilities such as Con Edison.
Penalties for Non-Compliance
Non-compliance with LL97 can be costly. Common fines include:
Standard carbon overage penalties
Late reporting fines
Legal action for misreporting
Beyond financial penalties, tenants and investors may be deterred by non-compliance.
Beyond 2030: Long-Term Compliance
Local Law 97 is not static. Future updates could include:
2035+ compliance requirements
Citywide emissions trading programs
Citywide decarbonization targets
Being proactive positions your property for long-term success — both in avoiding fines and boosting tenant satisfaction.
Final Thoughts
LL97 is a bold step toward a greener NYC. For property owners, it’s not just a mandate — it’s an opportunity to lower operating costs.
Start by benchmarking, and secure your building’s future. With the right support and a long-term vision, 632 broadway ny ny you can future-proof your asset.
