Local Law 97 Compliance & Retrofit Strategy

LL97 is reshaping how New York City buildings plan capital improvements.
Most properties over 25,000 SF must meet carbon emissions limits starting in 2024, tightening again in 2030 and 2050. This now affects OpEx, CapEx, NOI, and long-term asset value, not just sustainability scores, and requires integrated operational + capital planning, not just sustainability measures.

We help owners navigate LL97 with a development-minded approach: not rushed equipment swaps, but phased pathways that align compliance, electrification, incentives, and financial logic.

We coordinate LL84 benchmarking, LL87 audits, and LL97 roadmaps so owners aren’t managing three separate consultants. We translate compliance paths into clear board-level decisions with costs, timelines, and risk.

Our LL97 Services Include:

• LL97 emissions modeling & forecasting (2024 → 2030 → 2050)

• Envelope & MEP condition assessments with our partners

• Phased retrofit roadmaps & electrification sequencing

• Incentive & financing strategy (eg. C-PACE, NYSERDA)

• Retrofit design & Passive House informed envelope consulting

• Owner representation through implementation

LL97 Emissions Assessment & Forecasting

We analyze your current building performance and project future limits to understand exposure, including:

• 2024 → 2030 → 2050 compliance thresholds

• Emission fines & operational risk

• Fine exposure vs. retrofit cost break-even analysis

• Performance bottlenecks (envelope, systems, controls, schedules)

Deliverable: Baseline emissions report + compliance outlook

Existing-Building Envelope & MEP Assessment

Working with our PE/MEP partners, we conduct building-specific assessments covering:

• Envelope condition & thermal performance

• HVAC systems, domestic hot water, & ventilation

• Controls, automation, and operating schedules

• Domestic hot water loads and electrification feasibility

• Electrification barriers & opportunities

• LL87 audit integration (where applicable)

Deliverable: Deficiency report + performance constraints

Phased Retrofit Roadmaps

Rather than accelerating CapEx, we map compliance into the building’s natural lifecycle. That means:

• Envelope & air-sealing strategies

• Low-carbon vs. no-carbon retrofit pathways (2030 vs 2050)

• Sequenced electrification (DHW → heating/cooling → ventilation)

• Controls upgrades & ventilation improvements

• Integration with heat pumps, thermal storage, etc.

Deliverable: 2030 & 2050 retrofit roadmap aligned with CapEx cycles

Incentive & Financing Strategy

We help owners maximize incentives and funding options to reduce cost of compliance:

• ConEd + NYSERDA incentives

• IRA tax credits (179D/45L)

• Utility rebates & load-flexibility programs

• Stacking logic across IRA + NYSERDA + ConEd

• C-PACE eligibility screening

• Green financing & PACE eligibility

Deliverable: Stacked funding strategy + modeled savings

Retrofit Design & Implementation Support

For owners ready to execute, we support design and coordination through:

• Architectural envelope detailing & Passive House consulting

• MEP design with our engineering partners

• Permit & DOB compliance

• LL84/LL87/LL97 reporting coordination (with partners)

• Construction administration & verification

• Performance validation for LL97 compliance

Deliverable: Coordinated retrofit that meets LL97 targets

Building Types We Support

• Rental apartment buildings • Co-ops & condominiums • Mixed-use multifamily + retail

• Office and commercial buildings • Educational and institutional buildings • Nonprofits and cultural facilities

Decision Makers We Work With

• Owners and asset managers • Co-op and condo boards • Property and facility managers • Institutional leaders and directors

Contact Us

Address

324 E 35th St.
New York, NY 10016

Contact

917-291-2479

esra.karagoz@one-globe.biz

Opening Hours

Mon - Fri

8:00 am – 8:00 pm