NYC Building Benchmarking service
NYC Building Benchmarking service
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Benchmarking Services for NYC Buildings

From a single co-op to a 200-building portfolio, we handle Local Law 84 end to end — and show you what the numbers mean for your energy grade and Local Law 97.

Annual LL84 benchmarking filing

We collect a full year of whole-building energy and water data, build or clean up your ENERGY STAR Portfolio Manager property, share it with NYC and track it until it’s accepted in BEAM. You get a filing confirmation and a one-page summary of your score, EUI and grade outlook.

Best for: any building on the Covered Buildings List. [Full LL84 filing service at Cotocon →]

Violation and back-filing cleanup

Missed a year — or three? We file the missing reports, correct BBL/BIN and property-type errors, and help you resolve outstanding penalties through DOB NOW: Safety so new filings are accepted.

Best for: buildings that received a Notice of Violation or a new owner inheriting gaps.

Energy grade review and improvement

Your LL33/95 grade comes straight from your benchmarking data. We check whether a low grade reflects real performance or a data error (wrong space use, missing meters, mis-entered floor area), fix what’s wrong and recommend the operational changes that move the score.

Best for: buildings with a C, D or F grade, or a grade that dropped year over year.

LL97 emissions reconciliation

We convert your LL84 data into your Local Law 97 emissions and limit, so you see your penalty exposure for this period and 2030 before it’s filed. [LL97 compliance services →]

Portfolio benchmarking for managers

One contact, one calendar and one dashboard for every covered building you manage — utility authorizations, tenant meter collection and filing status tracked across the whole portfolio.

Related compliance work

What you’ll need to get started

  • Building address or BBL
  • Utility account numbers (electric, gas, steam, fuel oil delivery records)
  • Water account (DEP) if applicable
  • Last year’s Portfolio Manager login, if one exists