How to Track NYC Local Law Deadlines in 2026 (Without Missing One)

If you own or manage a NYC building, the city is counting on you to track between five and seven separate local laws on your own. Each has its own deadline. Each has its own penalty. Most of them don't send you a reminder. Miss one and the bill arrives anyway.

This piece is the ugly truth about how that calendar actually looks in 2026, what it costs to get wrong, and the tool we built to stop relying on a Notion page and a recurring Google Calendar event titled "DON'T FORGET LL97."

01 · WHAT'S DUEThe 11 local laws that hit most NYC buildings

Forget the public-radio summaries. Here's what actually applies to most rentals, condos, and co-ops over 25,000 sq ft:

• LL84 — energy & water benchmarking. Annual filing every May 1, every covered building.
• LL97 — building emissions. Annual filing by May 1 (was deferred to June 30 for the very first 2024 reporting year). Penalty: $268 per metric ton CO₂e over your cap.
• LL11 (FISP) — façade inspection. Five-year cycles split into sub-cycles A, B, and C by community district. Cycle 9 ran 2020–2024; Cycle 10 sub-cycle A was due Feb 21, 2025; sub-cycle B is due Feb 21, 2026. Buildings over 6 stories.
• LL152 — gas piping. Four community-district cohorts on rotating four-year cycles. If you're in cohort 3, your window is Jan 1 – Dec 31, 2026; cohort 4 is 2027.
• LL87 — energy audit + retro-commissioning every 10 years, building-tax-block-based. Buildings over 50K sq ft.
• LL88 — lighting upgrades and sub-metering. Originally a one-time obligation, but the deadline crept into 2025 for many buildings.
• LL126 — parking structure inspections. Six-year cycles, started in 2024.
• LL31 — lead-based paint inspection in apartments where children under 6 live. Annual, plus turn-over inspections. HPD-tracked.
• LL55 — Asthma-Free Housing Act. Mold, dust mites, vermin in occupied units.
• LL26 — sprinkler retrofit deadlines for office buildings (yes, this one is still happening).
• LL196 — site safety training (SST) cards for every construction worker on a major job site.

That's a lot. The exact cocktail depends on your building's height, occupancy class, gross square footage, and tax block. Here's the rough decision flow:

The rule of thumb: a 12-story, 60K sq ft pre-war Manhattan rental? Seven laws minimum. A 5-story, 18K sq ft Brooklyn condo? Three to four. A 40-story Class A office tower in Midtown? You're not reading this article — you have a sustainability VP. This piece is for everyone in between.

02 · THE CALENDARWhat 2026 actually looks like, month by month

The thing about NYC compliance deadlines is they're not actually calendar deadlines — they're cohort and cycle deadlines, layered on top of each other. Here's the typical pattern for a covered building in 2026:

Notice what this picture is actually showing. The hard deadlines are clustered between February and May — that's where most owners get caught flat-footed. May 1 alone is benchmarking and emissions and the start of the LL11 Cycle 10 follow-on filings. If you're managing two or three buildings, every spring is a fire drill. If you're managing fifteen, spring is a small humanitarian crisis.

03 · WHY THIS IS HARDThe five things that make NYC compliance unmanageable

It's not that any single law is complicated. (OK, LL97 is complicated. But just one.) It's that the laws don't stack cleanly, and the system that's supposed to remind you... doesn't.

① Cohort logic, not address logic

LL152 doesn't care about your address. It cares about your community district, and which of four cohorts that district is in this cycle. LL11 splits into A/B/C sub-cycles by community district too, and the sub-cycle clock resets when a new five-year FISP cycle begins. Most owners can't tell you what cohort they're in without checking. Some property managers we've talked to don't even know cohorts exist.

② Penalties that compound

FISP late-filing penalty is $1,000 base, plus $250/month until you file. That's small if you're 30 days late — fine, $1,250. But owners typically don't realize the filing was late until the third or fourth month, by which point you're at $2,000+ and the penalty is still accruing. By the time it's resolved, you've blown past the $5,000 mark with no actual underlying risk to anyone.

③ The professionals you need don't tell you when to start

For LL97, you need a Registered Design Professional or PE. For LL11, a Qualified Exterior Wall Inspector (QEWI). For LL152, a Licensed Master Plumber. None of these professionals send you reminders six months out — that's not their job. Their job is to do the inspection when you call. The booking lead time on a QEWI in spring is real: 4–8 weeks isn't unusual, which means a 60-day reminder is the minimum useful one for FISP.

④ DOB NOW vs BIS vs HPD vs OATH — the portal mess

LL97 and LL84 file through DOB NOW. LL11 reports go through DOB NOW Build. LL31 and LL55 surface in HPD records. LL152 inspections file through DEP-affiliated portals. There's no unified "your building's filings" page. If you want to verify a filing landed, you need to log into 3–4 different systems.

⑤ The amendments never stop

The compliance landscape in 2026 isn't the same as 2024. LL97 enforcement got a temporary good-faith effort window in mid-2025. LL84 reporting requirements were tightened. New laws — LL157 (natural gas detectors), LL92/94 (solar/green roof on new builds) — keep rolling in. If you're tracking deadlines on a spreadsheet that someone built in 2022, it's already wrong.

04 · HOW PEOPLE TRACK TODAYThe four common workflows (and where each one breaks)

Before we shipped Local Law Tracker, I'd ask owners and property managers how they handled this. Almost everyone had a version of one of these:

Workflow A: Excel + Outlook reminders

The most common one. Someone built a spreadsheet listing each building's BIN, the laws that apply, and the deadlines. Outlook reminders are set on the deadline date. Where it breaks: the spreadsheet decays. Someone leaves the firm. The new owner adds buildings without applicable-law analysis. Reminders get dismissed in bulk on Monday morning. Cohort years roll over and nobody updates the rows.

Workflow B: A retainer with an expediter

Pay an expediter $400–$1,200/month per building. They track deadlines for you and send filings. Where it breaks: expediters are reactive — they file when you instruct them. They don't always proactively flag a deadline two months out. And the per-building cost adds up fast.

Workflow C: "We'll deal with it when we get a notice"

Surprisingly common. Where it breaks: by the time DOB sends a notice, the penalty has accrued. For LL97, there isn't a "warning" — the penalty just shows up.

Workflow D: "Our co-op board has a sustainability subcommittee"

Volunteer-driven. Genuinely heroic when it works. Where it breaks: turnover. Volunteer boards rotate. Institutional knowledge walks out the door with the previous chair.

05 · THE PENALTY MATHWhat it costs if a deadline slips

This is the part owners under-estimate the most. Here's the actual penalty structure for the 2026 deadlines, sorted by what's most expensive when it goes wrong.

The expensive ones aren't the deadlines you'd guess. LL84 caps out at $2,000/year — annoying, but bounded. LL97 has no cap and compounds annually. A 60K sq ft Class B office that exceeds its Period 1 cap by 400 tCO₂e is paying $107,200 every year. For five years. Until they retrofit.

And those aren't the worst-case numbers — they're the typical numbers. The worst-case is finding out you've been three years behind on something and the city's recovery action shows up the same month you're refinancing.

06 · WHAT WE BUILTLocal Law Tracker — every deadline, per building, on the dashboard

So this is the thing we built. It lives in the ViolationWatch dashboard as a new tab. You activate it as an add-on for $59.99/year, and it does four things.

First, it figures out which laws apply to every building you're already monitoring. We pull PLUTO + DOB data for the BIN, run an inference pass against a curated rules graph for every NYC local law, and within seconds the applicable list is sitting there. "This building is over 6 stories, so LL11. It's 60K sq ft mixed-use, so LL84 + LL97. It's in cohort 3, so LL152 this year. It has rental units pre-1960 with kids on file, so LL31. It has a sub-grade parking garage, so LL126."

Second, it tracks every deadline. Every law card has the next deadline, the cycle context (sub-cycle B for FISP, Period 1 for LL97), why this law applies to this property, and the running penalty math.

Third, it fires up to three reminders per law per building, on dates you choose. Most owners default to 60/30/7 days out. We default to that too because that's the spacing that gives you enough lead time to engage a QEWI / RDP / LMP without panic.

Fourth, when you've filed, you click "Mark compliant" and the card flips to green. The next cycle's deadline pre-populates. If a deadline slipped, the card turns rose with the days-overdue and the live penalty number.

07 · ON THE PRICINGWhy $59.99/year, and what the math looks like

Before launch we went back and forth on whether to bundle Local Law Tracker into the base $9/mo per-building plan, or charge separately. Here's the case for separate, because we want to be honest with you about it.

Core monitoring (the $9/mo product) is real-time signal capture across ten city agencies — DOB, HPD, ECB, OATH, FDNY, 311 + four more. The job there is "catch the new violation in 10 minutes." It's a streaming workload.

Local Law Tracker is a different shape: it's an inference engine that reasons about which laws apply to a specific BIN, plus an orchestration layer that manages cohort cycles, sub-cycles, occupancy-based exemptions, and reminder schedules. It's the most expensive feature we ship. Pricing it as an add-on at $59.99/year kept the base monitoring plan affordable and let us actually invest in the tracker without raising everyone's price.

$59.99/year works out to about $5/month, total, across your whole portfolio — not per building. That's less than:

• One quarter of an LL84 late penalty (less than half, actually).
• 0.04% of a single LL97 over-cap penalty on a mid-size building.
• Half a billable hour with a compliance lawyer.
• The cost of one missed FISP at month four.

You need an active ViolationWatch monitoring plan to add it on. If you're new, the 7-day free trial covers the base plan and you can activate the tracker on day one.

08 · WHAT IT DOESN'T DOHonest scope

Local Law Tracker is a deadline and reminder engine. It is not a filer. We don't submit your LL97 emissions report to DOB NOW for you, we don't conduct your FISP inspection, and we don't run your LL152 plumber's walk-through. Those are licensed-professional jobs and they're going to stay that way.

We also don't currently:

• File on your behalf (planned filing-partner handoffs in Q3).
• Sync deadlines to Google or Outlook calendar yet (Q3).
• Route different laws to different team members yet — every reminder goes to the building's primary recipient (next iteration).
• Show actual assessed penalties from DOB enforcement records — we estimate from the published math (integration in flight).

The honest scope today is: "the calendar that figures out what applies to your building, tracks every deadline, and pings you 60/30/7 days before each one." If that's the gap you have, this fills it. If you need a full filing service, you'll still want an expediter alongside.

09 · ACTIVATING ITThe three steps

1. Have an active ViolationWatch plan, or start a 7-day trial.
2. Open the Local Laws tab in your dashboard sidebar (it has a NEW chip).
3. Click "Subscribe — $59.99/yr". Add-on activates instantly. Within a few seconds, every building you've added gets analyzed and the applicable laws appear with their deadlines.

Reminders default to 60/30/7 days. Override per building, per law, or globally from settings.

10 · BOTTOM LINEThe honest summary

If you're tracking NYC local law deadlines on a spreadsheet today, the spreadsheet is going to fail at some point — usually the year you add the third or fourth building. Local Law Tracker is the calendar that won't. It figures out which of the eleven major NYC local laws apply to your specific building, tracks every deadline, fires up to three reminders before each one, and shows live penalty math for slips. $59.99/year as an add-on to any ViolationWatch plan.

Activate Local Law Tracker →

— Want the deeper reads? LL97 compliance guide · LL11 FISP guide · LL152 gas piping guide · 2026 month-by-month calendar.