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Sustainability4 min readJuly 20, 2025

Navigating Local Law 97: A Strategic Guide for NYC Property Owners

Master Local Law 97 compliance with actionable strategies for reducing building emissions, avoiding penalties, and increasing property value in NYC's evolving regulatory landscape.

NYC skyline at dusk with Local Law 97 compliance messaging overlay, featuring Manhattan's iconic buildings including One World Trade Center

FUTURE-PROOF YOUR NYC ASSET

For a 50,000-square-foot building in New York City, failing to meet Local Law 97 (LL97) emissions targets could result in over $1 million in annual fines. As part of the Climate Mobilization Act, LL97 sets strict, escalating carbon limits for most buildings over 25,000 square feet.

Compliance is not just about avoiding penalties—it's about creating a higher-performing, more valuable asset. At Buildley, we transform LL97 into an opportunity. This guide empowers owners to meet NYC energy mandates and future-proof their portfolios with confidence.

1. The Foundation: A Data-Driven Energy Roadmap

Why It Matters: LL97 requires you to meet specific emissions caps by 2024 and beyond. A comprehensive energy audit is the first step to identifying performance gaps and building a clear, financially sound plan.

How to Do It: Start with an ASHRAE Level 2 energy audit to measure your current performance. Analyze HVAC, lighting, and building envelope inefficiencies, and benchmark them against your specific LL97 emissions limits.

Our Expertise: We deliver detailed energy audits and data-driven decarbonization roadmaps, providing a precise, ROI-focused plan to achieve Local Law 97 compliance efficiently.

2. The Engine: High-Performance Retrofits

Why It Matters: Strategic retrofits, such as HVAC electrification, can cut energy consumption by over 30%, ensuring LL97 compliance while improving tenant comfort and reducing operational costs.

How to Do It: Prioritize replacing outdated fossil fuel boilers with high-efficiency, electrified HVAC systems. Retrofit windows with energy-efficient glazing and improve insulation to reduce heat loss.

Our Expertise: Our integrated platform orchestrates the entire retrofit process, from engineering to on-site execution, ensuring a seamless project that minimizes disruption and maximizes performance.

3. The Control System: Smart Building Technology

Why It Matters: Smart systems optimize your energy use in real-time, providing the ongoing control necessary to meet LL97's increasingly stringent targets while enhancing long-term asset value.

How to Do It: Install smart sensors to adjust lighting and HVAC based on real-time occupancy. Use analytics platforms to monitor energy consumption daily and identify opportunities for optimization.

Our Expertise: Our smart building solutions provide a single-pane-of-glass dashboard for total building performance, ensuring your asset stays compliant and efficient with minimal effort.

4. The Payoff: Unlocking Value & Ensuring Compliance

Why It Matters: Green building certifications like LEED can boost asset value, while proven LL97 compliance provides total regulatory security.

How to Do It: Pursue certifications like LEED or Energy Star that align with your LL97 goals. Prepare and submit your annual emissions reports to NYC's Department of Buildings.

Our Expertise: We provide turnkey management for green building certifications, ESG reporting, and all LL97 documentation, serving as your single point of contact for total confidence.

FACING A COMPLIANCE DEADLINE?

Let's Build Your Local Law 97 Compliance Plan.

Get expert guidance on achieving LL97 compliance while maximizing your asset's performance and value.

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