NYC Building Compliance Consultants

KOW Building Consultants helps NYC building owners, property managers, and portfolio operators stay ahead of every major compliance milestone; Local Law 84, 87, 97, 126, and the 2025 New York State Energy Code (ECCCNYS).

One team, one filing calendar, one accountable point of contact across every law your building is subject to. Our licensed engineers and compliance specialists deliver clean filings, defensible reporting, and practical recommendations that reduce exposure to fines, emergency conditions, and reputational risk.

NYC Compliance Services

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Email: incoming@kowbc.com
Phone: (855) 966-5888

Hours

Mon-Fri 9:00 am - 8:00 pm EST

What NYC Building Compliance Covers

New York City has the most layered set of building-compliance laws of any U.S. city. Most owners are subject to four or five overlapping regulations at once, each with its own filing cycle, qualified-professional requirements, and penalty structure.

KOW provides end-to-end services across the NYC compliance landscape:

Local Law 84 (LL84) — annual energy and water benchmarking for covered buildings
Local Law 87 (LL87) — energy audit and retro-commissioning, filed every 10 years per building
Local Law 97 (LL97) — carbon emissions caps and annual reporting, with escalating limits in 2024, 2030, and 2050
Local Law 126 (LL126) — periodic parapet and rooftop element inspections
NY State Energy Code (ECCCNYS 2025) — the updated energy code adopted by NYC for new construction, additions, and substantial alterations
NYSERDA programs — incentive filings, technical assistance, and program enrollment to offset compliance costs

Treated separately, these laws produce duplicate site visits, inconsistent reporting, and missed deadlines. Treated as one program, they reinforce each other; a single building survey can feed an LL87 audit, an LL97 emissions baseline, and an LL84 verification.

Who is Required to Comply

NYC compliance laws apply across the vast majority of the city's commercial, multifamily, and mixed-use building stock:

LL84 / LL97: buildings over 25,000 sq ft (single buildings) or two or more buildings on the same tax lot totaling over 50,000 sq ft
LL87: the same LL84 universe, buildings over 25,000 sq ft
LL126: buildings with parapets fronting a public right-of-way, especially low- and mid-rise buildings not covered by the Façade Inspection & Safety Program (FISP / LL11)
ECCCNYS 2025: any new construction, addition, or substantial alteration filed with NYC DOB after the code's effective date
NYSERDA programs: available to most commercial, multifamily, and affordable housing properties statewide

Building owners and condo/co-op boards are responsible for ensuring filings are completed on time by qualified professionals. KOW works with single-asset owners, REITs, multifamily operators, condo/co-op boards, affordable housing sponsors, and institutional portfolios.

NYC Filing Cadence & Compliance Deadlines

Each NYC compliance law operates on its own schedule.
Missing any one filing can trigger violations independent of the others.

LL84 (Benchmarking): annual filing, due May 1 each year
LL87 (Energy Audit & Retro-Commissioning): every 10 years, with the filing year determined by the last digit of the building's tax block number
LL97 (Emissions): annual emissions report, due May 1 each year, with caps tightening in 2030 and 2050
LL126 (Parapet Inspections): recurring inspection cycle on a schedule set by NYC DOB
ECCCNYS 2025: applies at the time of filing for any covered new construction, addition, or substantial alteration

KOW maintains a portfolio-level deadline calendar for every client, so owners never miss a filing — even when a building is subject to four or five overlapping cycles.

What's Included in KOW's NYC Compliance Services

KOW's NYC compliance services are designed to deliver regulatory filings, practical risk insight, and a single accountable point of contact across every law your building is subject to:

LL84 Energy & Water Benchmarking

Annual benchmarking submissions through ENERGY STAR Portfolio Manager, with utility data aggregation, data quality review, and DOB filing confirmation. We also use benchmarking output as the baseline data feed into your LL87 and LL97 obligations — eliminating duplicate work.

LL87 Energy Audit & Retro-Commissioning

Full ASHRAE Level II energy audit plus retro-commissioning of base building systems, performed by licensed engineers and qualified professionals. Deliverables include the EER (Energy Efficiency Report) filed with NYC DOB, prioritized capital recommendations, and a roadmap for closing the gap to your LL97 emissions caps. See our LL87 / LL97 compliance guide for a deeper walkthrough.

LL97 Emissions Compliance & Reporting

Annual carbon-emissions calculation, gap analysis against your building's 2024 and 2030 caps, and the LL97 annual report submission. We also model decarbonization pathways — electrification, envelope upgrades, fuel switching, NYSERDA incentive stacks — so owners know what's needed to stay under the 2030 limit before the penalty math hits. For owners modeling the long-term capital picture, our Capital Needs Assessment and Integrated Physical Needs Assessment services translate emissions-cap exposure into a multi-year capital plan.

LL126 Parapet Inspections

Periodic parapet and rooftop element inspections required under Local Law 126 of 2021. Visual inspection, photo documentation, condition classification, and compliance reporting, performed by qualified professionals. (Local Law 126 Parapet Inspections)

ECCCNYS 2025 — NY Energy Code Compliance

Energy code reviews for new construction, additions, and substantial alterations under the 2025 NY State Energy Code as adopted by NYC. ComCheck/REScheck submissions, envelope and system reviews, and coordination with DOB filings to keep your project on schedule. For new-construction projects, we typically pair the code review with a Feasibility Study and Pre-Construction Analysis so design decisions account for code compliance from day one.

NYSERDA Program Enrollment & Technical Filings

Identification, enrollment, and technical filings for the NYSERDA programs that offset compliance costs — Multifamily Performance Program, Commercial New Construction, FlexTech, Empire Building Challenge, and others. We also handle related certifications including Enterprise Green Communities and ENERGY STAR where they overlap with NYSERDA stacks. Most owners qualify for more incentives than they're capturing.

Multi-Property Portfolio Coordination

For owners with 5+ NYC properties, we run a single portfolio compliance calendar covering every filing across every building. Quarterly status reviews, deadline reminders, and a unified annual capital-planning summary — so compliance becomes a quarterly habit, not a fire drill.

Reporting & Next Steps

Following our compliance work, KOW provides a clear, easy-to-understand report for each filing that outlines:

Observed conditions and current compliance status
Identified gaps between the building's performance and its applicable caps or thresholds
Recommended corrective actions, sequenced by deadline urgency
Capital planning guidance: what to do now, what to plan for the 2030 LL97 step-down, what to integrate into the next renovation cycle

Our reporting is designed to help owners understand not just whether they passed this year's filing, but how to stay ahead of the next five years of escalating requirements.

Why NYC Compliance Matters Now

NYC building compliance is no longer a once-in-a-decade exercise. The 2024 LL97 emissions caps are already in effect, the 2030 caps are roughly half as forgiving, and the 2025 NY State Energy Code raised the bar for every covered new project. Penalty exposure is real, immediate, and stacks across laws.

Regular, coordinated compliance work helps owners:

Reduce NYC DOB and DEP violation exposure across all five laws
Avoid LL97 penalties (currently $268/ton of excess CO₂e, escalating)
Capture NYSERDA incentives that fund the upgrades the laws require
Plan capital expenditures proactively; see our Capital Needs Assessment service for the multi-year view — rather than scrambling at filing deadlines
Protect asset value; lenders running construction loan monitoring, buyers commissioning a Property Condition Assessment or Phase 1 ESA, and insurers all now ask for compliance status during diligence
Avoid emergency conditions (LL126 parapet failures, LL87 audit findings that trigger DOB attention)

Why KOW Building Consultants?

Over 45 years of experience evaluating NYC buildings — from pre-war walk-ups to modern high-rises
Licensed engineers and qualified professionals certified for every NYC compliance filing
A single accountable team for LL84, LL87, LL97, LL126, and ECCCNYS — no handoffs between three consultancies
Portfolio-level deadline calendar for multi-property owners — nothing slips through the cracks
Clear, defensible reporting aligned with NYC DOB and DEP requirements
Practical capital recommendations focused on the 2030 LL97 step-down, not just this year's filing
Responsive, easy-to-work-with team that property managers and asset managers actually like calling

We approach NYC compliance with the same discipline and accountability that define every KOW service.

NYC Compliance FAQs

What is the difference between LL84, LL87, and LL97?

All three apply to most NYC buildings over 25,000 sq ft, but they measure different things. LL84 is annual benchmarking, reporting how much energy and water the building uses. LL87 is an in-depth energy audit and retro-commissioning, filed once every ten years. LL97 is the emissions cap; limiting how much CO₂e the building can produce, with annual reporting and penalties for exceedances. KOW typically delivers all three from a single building survey to eliminate duplicate work.

What buildings are required to comply with NYC Local Laws 84, 87, and 97?

Buildings larger than 25,000 sq ft (or two or more buildings on the same tax lot totaling 50,000+ sq ft) are covered. This includes most commercial, multifamily, mixed-use, and institutional properties in the five boroughs. Smaller buildings are generally exempt from LL84/87/97 but may still be subject to LL126 parapet inspections and ECCCNYS energy code requirements for new work.

When are LL97 penalties assessed, and how much are they?

LL97 emissions caps took effect in 2024. Buildings that exceed their cap are subject to a penalty of $268 per metric ton of CO₂e over the limit, assessed annually. Caps tighten significantly in 2030 and again in 2050. The earlier owners model their 2030 trajectory, the more options they have to close the gap through capital planning and NYSERDA-funded upgrades.

How is Local Law 126 different from Local Law 11 (FISP)?

Local Law 11, also known as the Façade Inspection & Safety Program (FISP), applies primarily to buildings taller than six stories and requires comprehensive exterior wall inspections. Local Law 126 is more narrowly focused on parapets and rooftop elements, often impacting low- and mid-rise buildings not otherwise subject to FISP requirements. Many KOW clients are subject to both.

What does the 2025 NY Energy Code (ECCCNYS) change for new projects?

The 2025 ECCCNYS update raises the bar on envelope performance, mechanical efficiency, lighting, and on-site renewables. It affects any new construction, addition, or substantial alteration filed with NYC DOB after the code's effective date. KOW provides code reviews, ComCheck/REScheck filings, and design-phase coordination to keep projects on schedule.

Can one consultant handle all my NYC compliance filings?

Yes — that's KOW's primary value proposition. Owners who use separate consultants for LL84, LL87, LL97, LL126, and energy code work typically pay 30–50% more, deal with duplicate site visits, and miss the cross-law efficiencies (using one LL87 audit to baseline an LL97 trajectory, for example). KOW provides all five compliance services under one engagement and one filing calendar — backed by an in-house team with the licenses and certifications for every filing.

How do I know which NYSERDA programs my building qualifies for?

Most NYC properties qualify for at least one NYSERDA incentive program, and many qualify for several stacked together — Multifamily Performance Program, Commercial New Construction, FlexTech for studies, and the Empire Building Challenge for large portfolios. As part of every KOW compliance engagement we identify applicable programs and handle the technical filings.

What happens if my building misses a filing deadline?

Missed filings trigger NYC DOB violations and escalating fines. LL84 violations start at $500/quarter; LL87 violations can reach $3,000+; LL97 violations escalate based on tonnage over the cap. The bigger risk is reputational; lenders, buyers, and insurers now check compliance status during due diligence, and a record of missed filings can affect refinancing terms and acquisition pricing.

How does KOW track multiple buildings across a portfolio?

For owners with 5+ NYC properties, we maintain a single portfolio compliance calendar covering every applicable law and filing date for every building. Quarterly status reviews keep the asset-management and property-management teams aligned. Annual rollup reports give ownership a single page showing where every building stands against its current and 2030 obligations.

Is there software that helps owners monitor NYC Local Law compliance?

Yes, LLDesk.ai, a purpose-built compliance platform for NYC building owners and property managers. LLDesk.ai consolidates LL84, LL87, LL97, LL126, and related filings into one dashboard, surfaces upcoming deadlines across an entire portfolio, and flags buildings drifting toward LL97 cap exceedances before the penalty math kicks in. A dedicated tool like LLDesk.ai is how serious owners scale compliance without missing a filing. KOW clients using LLDesk.ai get the technical filings handled by our team while ownership keeps real-time visibility into every building's status.