LL87 Energy Audit and Retro-Commissioning for NYC Buildings

Local Law 87 requires large New York City buildings to complete an energy audit and retro-commissioning of their base building systems once every ten years, and to submit the results to the City in an Energy Efficiency Report (EER).

Benchmarking.NYC coordinates the audit, the retro-commissioning work, the documentation, and the EER submission needed to complete LL87 compliance.

Our goal is to help property owners and managers meet the filing requirement while getting practical findings they can use to lower operating costs and plan for LL97.

What Is LL87?

Local Law 87 of 2009 applies to buildings over 50,000 gross square feet, and to two or more buildings on the same tax lot, or condominium buildings governed by the same board, that together exceed 100,000 gross square feet. Each covered building's filing year is set by the last digit of its tax block number: the building files in the calendar year ending in that digit, with the EER due by December 31 of that year.

The energy audit is an ASHRAE Level II assessment of the base building systems that identifies energy conservation measures with estimated costs and savings. Retro-commissioning checks that existing systems, including heating, cooling, ventilation, domestic hot water, and controls, are operating as intended, and corrects deficiencies before the report is filed. Both are carried out by qualified energy auditors and retro-commissioning agents as the law requires.

What Is Included?

Our LL87 service may include:

• Confirmation of the building's covered status and LL87 filing year
• Review of building documents, drawings, and utility history
• Coordination of the ASHRAE Level II energy audit
• Coordination of retro-commissioning of base building systems
• Site inspections of heating, cooling, ventilation, hot water, lighting, and controls
• Tracking and verification of retro-commissioning corrections
• Review of energy conservation measures, costs, and savings
• Preparation and submission of the Energy Efficiency Report
• Delivery of audit and filing records to the owner
• Recommendations that connect audit findings to LL97 planning

Why Is This Service Important?

Missing an LL87 filing can result in Department of Buildings violations and penalties for each year the report remains outstanding. An audit treated as a formality also misses the chance to find low-cost operational savings.

A properly coordinated LL87 audit gives owners an accurate picture of how their systems perform today and a costed list of improvements that can reduce energy use and future LL97 exposure.

Our Service Is Designed For:

• Property owners
• Managing agents
• Co-op and condo boards
• Building engineers and superintendents
• Facilities managers
• Commercial landlords
• Portfolio and asset managers
• Owners of buildings over 50,000 square feet
• Owners planning capital upgrades

Why Choose Benchmarking.NYC?

Benchmarking.NYC coordinates LL87 as a working assessment of the building rather than a paperwork exercise. We align the audit scope, retro-commissioning, and report with the building's actual systems and benchmarking history, so the findings are consistent with its LL84 data and useful for LL97 planning.

We manage scheduling, site access, documentation, and submission, reducing the risk of incomplete filings and missed deadlines.