Henson Architecture’s Local Law 97 Solutions: Reliable Expertise at Your Service
With climate change and GHG emissions taking center stage in New York City, Local Law 97 serves as a transformative regulation for placing emission limits across New York City’s largest buildings.
Passed as part of the Climate Mobilization Act, Law 97 sets ambitious carbon emission limits on buildings, placing carbon caps designed to reduce greenhouse gas emissions significantly by 2030 and beyond.
For owners, compliance with LAW 97 goes beyond a regulatory challenge: it is an opportunity to advance sustainability within the city’s building landscape.
At Henson Architecture, we specialize in guiding building owners through these complex energy demands, offering expertise grounded in historic preservation, adaptive reuse, and sustainable retrofit.
How Local Law 97 Shapes the Future of NYC Buildings
NYC stands at the cutting edge of urban green, as most buildings exceeding 25,000 sq. ft. are subject to Local Law 97’s establishes carbon emission limits supporting aggressive city climate targets.

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.
Owners seeking compliance must enhance energy usage and transition toward clean energy practices, achieving substantial GHG reductions in the process.
Put simply, Local Law 97 establishes emissions regulations that call for direct and indirect GHG limits, strongly motivating performance upgrades focused on efficiency.
Strict reporting and potential penalties are enforced via the NYC DOB, often working in tandem with 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
For many building owners, understanding and meeting the requirements of Local Law 97 can be a daunting process.
The DOB enforces these requirements with a focus on accuracy in reporting and strict 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.
Because Local Law 97 is placing carbon caps, owners have put forth ambitious emissions targets; this is about meeting both code and transforming building operations towards sustainability.
This transition requires technical expertise in energy analytics, Local Law 97 timelines building envelope performance, HVAC system upgrades, and the integration of clean energy solutions such as solar and other renewable resources.
Marrying Preservation and Performance: Henson Architecture’s Unique Expertise
Our tailored solutions meet building owners at their point of need, addressing even the most complex of requirements.
With roots in 2003, Henson Architecture is an acclaimed practice focused on historic, restoration, and adaptive reuse projects.
Our work harmonizes craftsmanship with technical rigor to deliver sustainable futures — preserving the past while performing for the future.
Our deep experience with NYC’s most buildings, particularly heritage buildings, prepares us to strategically reduce greenhouse gas emissions without compromising the architectural and cultural significance of a property.
Because many of NYC’s landmark buildings are historic, only skilled practitioners can deliver the sensitive solutions such projects demand.
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.
Tailored Solutions for Local Law 97 Compliance
Meeting regulatory requirements calls for a holistic strategy—from audits and reporting to expert NYC envelope consulting, facade upgrades, and Passive House retrofits.
We assist owners at each step of the compliance journey:
- Comprehensive Energy 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. Our expertise ensures building owners submit precise reports to the DOB, maintaining compliance and avoiding penalties.
- Envelope & Facade Performance Consulting: Aging facades and suboptimal envelopes often lead to significant energy loss. 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. New York City owners benefit from these upgrades through lower energy costs and lifespan extension for assets, meeting ambitious emissions targets set by the law.
- Deploying Clean Energy for Compliance: Clean energy adoption is pivotal for long-term compliance and reducing operational carbon. 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 We partner regularly with NYSERDA and NYC Accelerator, offering owners extensive support packages scaled for their needs. NYSERDA offers funding, training, and technical assistance to owners seeking to improve 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. These offerings are a testament to the city’s resolve for sustainability, providing owners with both funding and insights. Achieving Climate Targets: Adaptive Reuse & Sustainable Retrofits Our work is rooted in both sustainability and long-term climate resilience. Local Law 97 directly supports ambitious municipal climate agendas intended to steeply cut greenhouse gases over the coming decades. Our focus on adaptive reuse and sustainability-driven retrofits cuts both embodied and operational carbon over a building’s life cycle. Most buildings subject to Law 97 present significant opportunities for improvement, from outdated mechanical systems to inefficient building envelopes. We blend proven preservation practices with advanced solutions, safeguarding both historic value and code adherence. We assert that the greatest climate impact comes from upgrading existing buildings—critical venues for carbon caps and compliance with new GHG targets. Staying Ahead: Compliance, Reporting & Securing Your Building’s Future The enforcement of Local Law 97 means the DOB rigorously monitors reporting and compliance. Annual reporting from owners must include updates on energy consumption and records of compliance with emission caps. Severe fines and possible property devaluation await those who fall short of Law 97’s requirements. Henson Architecture supports these reporting requirements, delivering transparent, precise documentation that meets DOB standards. By acting as trusted advisors, we help owners proactively manage compliance, leveraging planned strategies over hasty fixes. We also stress future-proofing, instituting advanced sustainability initiatives so owners can adjust to upcoming climate and legislative shifts. We aim not only for short-term compliance but also for ongoing, responsible building management for years ahead. 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. By connecting clients with NYSERDA and the NYC Accelerator, we clarify new carbon requirements and promote informed, continuous compliance. We offer instruction on best practices for efficiency, the finer points of Law 97 reporting, and advanced retrofit approaches, so owners can thrive amid changing regulations. Transform Your Building: Local Law 97 Solutions by Henson Architecture Owners tackling the complexities of Local Law 97 count on Henson Architecture for peerless experience at the intersection of preservation and sustainability innovation. We successfully support NYC’s largest buildings with a comprehensive strategy encompassing energy improvements, precise reporting, and clean energy solutions. Building owners seeking to reduce greenhouse gas emissions while preserving architectural heritage trust our principals’ direct involvement and specialized team’s craftsmanship. Our collaborative efforts reimagine the NYC built environment as robust, climate-conscious properties. Begin your retrofit process now—Henson Architecture is ready to safeguard your history and ensure your building’s performance for the years ahead.
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