{"id":3517,"date":"2025-07-25T06:49:57","date_gmt":"2025-07-25T06:49:57","guid":{"rendered":"https:\/\/www.thecotocongroup.com\/?p=3517"},"modified":"2026-02-03T08:59:09","modified_gmt":"2026-02-03T08:59:09","slug":"nyc-local-law-84-benchmarking","status":"publish","type":"post","link":"https:\/\/thecotocongroup.com\/blog\/nyc-local-law-84-benchmarking\/","title":{"rendered":"The NYC Local Law 84 Benchmarking &#8211; A Deal Breaker for LL97 Compliance"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;full_width&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221;][vc_column][vc_empty_space][\/vc_column][\/vc_row][vc_row row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;full_width&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221;][vc_column][vc_column_text]<\/p>\n<h3 style=\"text-align: justify;\"><b>NYC Local Law 84 Benchmarking: A Key Step Toward LL97 Compliance in 2025<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">New York City continues to lead the fight against climate change through stringent local laws focused on building performance. Among these, Local Law 84 (LL84) and Local Law 97 (LL97) play crucial roles. As of 2025, compliance with LL84 benchmarking is not just a standalone requirement but an essential step for meeting LL97&#8217;s carbon emission targets.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">This article breaks down the updated LL84 requirements, explains how they align with LL97 goals, and highlights best practices for building owners to ensure full compliance.<\/span><\/p>\n<h5 style=\"text-align: justify;\"><b>Understanding NYC Local Law 84<\/b><\/h5>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Originally enacted in 2009 as part of the Greener, Greater Buildings Plan, <\/span><a href=\"https:\/\/thecotocongroup.com\/nyc-local-law-84.html\"><span style=\"font-weight: 400;\">LL84<\/span><\/a><span style=\"font-weight: 400;\"> requires annual benchmarking of energy and water use for large buildings in NYC. As of 2025, this applies to buildings over 25,000 square feet, or lots with combined floor areas exceeding this threshold.<\/span><\/p>\n<h5 style=\"text-align: justify;\"><b>Key Requirements for 2025<\/b><\/h5>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Deadline<\/b><span style=\"font-weight: 400;\">: May 1, 2025, for reporting 2024 usage data. A grace period runs until June 30, 2025.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Extension Option<\/b><span style=\"font-weight: 400;\">: Buildings filing for LL97 emissions reporting extensions by August 29, 2025, can also delay their NYC LL84 report submission until December 31, 2025.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>RDP Certification<\/b><span style=\"font-weight: 400;\">: All benchmarking submissions in 2025 must be certified by a Registered Design Professional (RDP), such as a licensed architect or engineer.<\/span><\/li>\n<\/ul>\n<h5 style=\"text-align: justify;\"><b>Penalties<\/b><\/h5>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">$500 per missed quarter, up to a maximum of $2,000 per year for non-compliance.<\/span><\/li>\n<\/ul>\n<h4 style=\"text-align: justify;\"><b>Why LL84 Benchmarking Matters<\/b><\/h4>\n<h5 style=\"text-align: justify;\"><\/h5>\n<h5 style=\"text-align: justify;\"><b>1. Establishes Your Emissions Baseline<\/b><\/h5>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Benchmarking reveals a building&#8217;s annual energy consumption, forming the baseline used to calculate emissions under Local Law 97. This helps building owners understand how much reduction is required to stay within LL97 limits.<\/span><\/p>\n<h5 style=\"text-align: justify;\"><b>2. Identifies Efficiency Opportunities<\/b><\/h5>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Local Law 84 helps uncover inefficiencies in water and energy usage, allowing property managers to take proactive steps\u2014such as equipment upgrades or operational changes\u2014to improve building performance.<\/span><\/p>\n<h5 style=\"text-align: justify;\"><b>3. Enhances Transparency<\/b><\/h5>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Benchmarking data is made publicly available, supporting transparency and enabling tenants and buyers to assess a building&#8217;s environmental performance.<\/span><\/p>\n<h5 style=\"text-align: justify;\"><b>4. Mandatory for Local Law 97 Compliance<\/b><\/h5>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Failing to comply with LL84 may jeopardize your building&#8217;s standing under LL97, as both laws are interconnected. LL84 data directly feeds into LL97 emissions calculations.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h5 style=\"text-align: justify;\"><b>What\u2019s New for 2025?<\/b><\/h5>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">NYC has introduced several updates that building owners must follow:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Mandatory RDP Certification<\/b><span style=\"font-weight: 400;\">: Certification by a design professional is now required for all LL84 and LL97 filings.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>BEAM Portal Use<\/b><span style=\"font-weight: 400;\">: Reports must be submitted through NYC\u2019s online BEAM portal.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>ENERGY STAR Portfolio Manager Sharing<\/b><span style=\"font-weight: 400;\">: Properties must share data with NYC via ENERGY STAR Portfolio Manager.<\/span><\/li>\n<\/ul>\n<h5 style=\"text-align: justify;\"><b>Local Law 97: A Quick Recap<\/b><\/h5>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/thecotocongroup.com\/nyc-local-law-97.html\"><span style=\"font-weight: 400;\">Local Law 97<\/span><\/a><span style=\"font-weight: 400;\">, part of NYC\u2019s Climate Mobilization Act, mandates strict carbon emissions caps for buildings over 25,000 square feet, starting from 2024. Buildings exceeding their emissions limit will face penalties of <\/span><b>$268 per metric ton of CO2-equivalent emissions<\/b><span style=\"font-weight: 400;\"> over the cap.<\/span><\/p>\n<h5 style=\"text-align: justify;\"><b>2025 LL97 Reporting Details<\/b><\/h5>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Reporting Deadline<\/b><span style=\"font-weight: 400;\">: May 1, 2025<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Grace Period<\/b><span style=\"font-weight: 400;\">: Until June 30, 2025<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Extension Deadline<\/b><span style=\"font-weight: 400;\">: August 29, 2025<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Final Submission (if extended)<\/b><span style=\"font-weight: 400;\">: December 31, 2025<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Penalties for failure to comply include late fees (up to $0.50 per square foot per month) and severe fines for misreporting.<\/span><\/p>\n<p style=\"text-align: justify;\"><b>Best Practices for LL84 and LL97 Compliance<\/b><\/p>\n<h5 style=\"text-align: justify;\"><b>Ensure Data Accuracy<\/b><\/h5>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Validate all energy and water usage data before submission. Use submetering and advanced metering tools to gather precise information.<\/span><\/p>\n<h5 style=\"text-align: justify;\"><b>Engage a Qualified RDP<\/b><\/h5>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Partner with a licensed engineer or architect early in the process to certify your data and avoid last-minute delays.<\/span><\/p>\n<h5 style=\"text-align: justify;\"><b>Align LL84 and LL97 Planning<\/b><\/h5>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Coordinate timelines and reporting efforts to avoid duplication and reduce the risk of missed deadlines.<\/span><\/p>\n<h5 style=\"text-align: justify;\"><b>Use Technology<\/b><\/h5>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Leverage building management systems (BMS) and <\/span><a href=\"https:\/\/www.energystar.gov\/\"><span style=\"font-weight: 400;\">ENERGY STAR<\/span><\/a><span style=\"font-weight: 400;\"> tools to streamline data collection and analysis.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h6 style=\"text-align: justify;\"><b>Conclusion<\/b><\/h6>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">NYC Local Law 84 benchmarking is more than just a reporting requirement\u2014it\u2019s a foundational step toward achieving compliance with Local Law 97\u2019s carbon emissions targets. With updated deadlines, certification mandates, and tighter integration with LL97, LL84 is now a critical tool in every building owner\u2019s sustainability strategy.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Partnering with experienced sustainability consultants like <\/span><a href=\"https:\/\/thecotocongroup.com\/contact-us.html\"><span style=\"font-weight: 400;\">The Cotocon Group<\/span><\/a><span style=\"font-weight: 400;\"> can make the process smoother, ensure accuracy, and keep your building on the path to compliance and long-term energy efficiency.<\/span><\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;full_width&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221;][vc_column][vc_empty_space][\/vc_column][\/vc_row][vc_row row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;full_width&#8221; [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4884,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[42],"tags":[],"class_list":["post-3517","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-building-energy-benchmarking"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>NYC Local Law 84 Benchmarking: Key to LL97 Compliance<\/title>\n<meta name=\"description\" content=\"Discover the significance of NYC Local Law 84 benchmarking in achieving LL97 compliance. 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