Local Law 97 Solutions by Henson Architecture: Expertise You Can Trust
As NYC addresses the challenge of climate change alongside increasing greenhouse gases, Local Law 97 represents a pivotal regulation that sets new emissions rules for New York City’s largest buildings.
Enacted via the Climate Mobilization Act, Local Law 97 imposes ambitious carbon emission caps on buildings, which are expected to deliver dramatic GHG reductions through 2030 and further.

For owners, compliance with LAW 97 is more than a bureaucratic hurdle: it offers an avenue to adopt sustainability within the city’s fabric.
At Henson Architecture, we provide guidance to owners to navigate complex energy requirements, leveraging our expertise in historic preservation, adaptive reuse, and advanced sustainable retrofits.
Understanding Local Law 97 and Its Impact on NYC Buildings
Affecting most buildings larger than 25,000 square feet, Local Law 97 establishes carbon emission limits and positions NYC as a leader in urban green initiatives, aligned with citywide climate ambitions.
Local Law 97 primarily targets emission reductions from existing buildings since New York City’s largest buildings are major contributors to the total carbon footprint.
Compliance requires that owners both optimize energy efficiency and adopt clean energy solutions to curb greenhouse gas emissions.
Owners must meet emissions regulations under Local Law 97, putting a direct emphasis on efficient performance upgrades and GHG controls.
The law enforces strict reporting and penalties primarily through coordination with the NYC Department of Buildings (DOB) and Local Law 87 energy audits.
By 2024, many NYC buildings face their first compliance deadline, placing urgency on building owners to act now.
The Challenge for Building Owners Under Law 97
Navigating the requirements of Law 97 can be difficult and confusing for many owners.
The DOB enforces these requirements with a focus on accuracy in reporting and strict NYC building emissions standards Local Law 97 adherence to emissions limits.
Assessing energy use, determining a GHG baseline, and customizing a compliance plan aligned with new carbon emission limits are essential steps for owners.
With the placement of carbon caps by Local Law 97, owners have put forth ambitious emissions targets and are shifting their operations towards a sustainability focus, not just compliance.
This transition requires technical expertise in energy analytics, building envelope performance, HVAC system upgrades, and the integration of clean energy solutions such as solar and other renewable resources.
Future-Proofing Heritage Buildings: The Henson Architecture Approach
Our tailored solutions meet building owners at their point of need, addressing even the most complex of requirements.
Established in 2003, our firm is recognized for excellence in historic building preservation, restoration, and adaptive reuse across NYC.
Our work harmonizes craftsmanship with technical rigor to deliver sustainable futures — preserving the past while performing for the future.
Having extensive experience with NYC’s most buildings—including landmarks—enables us to cut greenhouse gas emissions strategically without sacrificing the property’s unique historic or cultural aspects.
Many of NYC’s greatest buildings are historic, requiring sensitive solutions that only expert hands can execute with precision.
Our specialty lies in transforming aging structures through sustainable retrofits that significantly improve energy performance and support compliance with Local Law 97, all under the watchful eyes of agencies such as the DOB.
Custom Approaches to Local Law 97: Our Service Spectrum
Meeting regulatory requirements calls for a holistic strategy—from audits and reporting to expert NYC envelope consulting, facade upgrades, and Passive House retrofits.
Henson Architecture supports building owners through every stage:
- Complete Energy Data Analysis and Reporting: Timely and precise reporting is essential. Local Law 97 demands detailed energy and emissions reporting, which we streamline through rigorous data collection and analysis. Owners can rely on our experience for flawless DOB submissions, ensuring ongoing compliance and penalty avoidance.
- Building Envelope and Facade Consulting: Many buildings suffer from energy loss through deteriorated facades and inefficient envelopes. We evaluate, upgrade, and restore envelopes for thermal performance, blending artisan skill with today's green benchmarks.
- Passive House and Energy Retrofit Design: We prioritize high-performance upgrades that yield major operational energy savings. Such retrofits help owners cut costs, extend their buildings’ usable life, and reach the emissions goals outlined by Local Law 97.
- Integration of Clean Energy Technologies: Adopting clean energy is essential both for lasting compliance and for overall emission reduction. We help owners select and integrate the right combination of solar, storage, and renewables needed under the compliance framework. Tapping NYSERDA and Accelerator Programs for Effective Compliance Henson Architecture maintains strong collaboration with NYSERDA and the NYC Accelerator, granting owners full access to program resources. Funding, training, and expert guidance from NYSERDA are available to support meaningful improvements in building energy performance. Owners leveraging these programs access streamlined upgrading processes and full compliance support. The NYC Accelerator is another vital resource offering tailored support and training for Local Law 97 compliance. Our team guides clients in accessing these programs, helping to offset retrofit costs and accelerate project timelines. Such programs highlight NYC’s dedication to advancing sustainability and simultaneously supporting owners with education and resources. Addressing Climate Goals through Adaptive Reuse and Sustainable Retrofits We place sustainability and climate adaptation at the heart of everything we do. Local Law 97 aligns with New York City's broader climate plans that aim to drastically reduce municipal greenhouse gas emissions over the next decades. Our focus on adaptive reuse and sustainability-driven retrofits cuts both embodied and operational carbon over a building’s life cycle. Many buildings facing Law 97 have major upgrade potential, whether in obsolete systems or energy-leaking envelopes. Our expertise marries traditional preservation techniques with progressive solutions that maintain heritage significance and ensure code compliance. This approach champions the principle that existing buildings are the key to the city’s climate goals, representing the most impactful arena for placing carbon caps to meet new GHG emissions thresholds. Managing Compliance, Reporting, and Future-Proofing The enforcement of Local Law 97 means the DOB rigorously monitors reporting and compliance. Building owners must submit annual emissions reports, with evaluations of energy consumption and adherence to emissions limits. Non-compliance brings harsh financial penalties and risks lowering property valuation. We help owners fulfill reporting mandates with clarity and detailed documentation designed for DOB acceptance. With our guidance, owners can anticipate compliance needs and benefit from forward-thinking adjustments instead of last-minute responses. Moreover, we emphasize future-proofing buildings by incorporating forward-looking sustainability strategies, helping owners adapt to evolving requirements under future climate legislation. Our role extends beyond immediate compliance into long-term stewardship of the building stock. Empowering Owners: Training & Education for Law 97 We empower owners and management teams with individualized training and support designed for both Law 97 and greater sustainability goals. Thanks to our relationships with NYSERDA and the NYC Accelerator, clients gain insights into new emission rules and acquire skills for assured compliance. Our education programs address energy efficiency, compliance reporting, and smart retrofit options to help owners face regulatory changes with confidence. Transform Your Building: Local Law 97 Solutions by Henson Architecture For building owners navigating the intricate demands of Local Law 97, Henson Architecture offers unmatched expertise rooted in combining historic preservation with forward-thinking sustainable design. With a holistic eye on performance upgrades, accurate reporting, and clean energy, we position owners for compliance in even the largest buildings. For owners striving to lower GHG emissions and safeguard character, our principals’ personal attention and expert team deliver peace of mind. Our collaborative efforts reimagine the NYC built environment as robust, climate-conscious properties. Take the first step: consult with Henson Architecture to unlock your building’s full potential—a committed partner protecting the past and advancing the future.
Henson Architecture advances the field of preservation through a hands-on approach to craftsmanship and traditional building practices as demonstrated in our award-winning, nationally recognized projects. Henson Architecture 27 W 20th St #1201, New York, NY 10011 +12129952464