Stay Ahead of Every NYC Building Compliance Deadline
with The Folson Group's live calendar with regulatory deadlines.
At The Folson Group, we know that managing a cooperative or condominium board can feel like navigating a complex maze of due dates and regulations. We created this comprehensive calendar to simplify the critical deadlines, from LL97 reporting to annual elevator inspections—so you can focus on what matters most: running your building smoothly.
Use this resource as your quick-reference guide. If you have any questions or need hands-on support in meeting these compliance requirements, please reach out. We’re here to help you stay ahead of the curve and avoid costly penalties.
Frequency
Due Date
Law / Requirement
Category
Law / Code
Agency
Yearly
15-Feb
Co-op/Condo abatement application
Taxes
RPTL
DOF
Yearly
15-Feb
Stove knob cover notices
Stove
LL117
HPD
Yearly
15-Feb
Window-guard notices
Window
NYC Health Code §131.15
HPD
Yearly
15-Feb
Lead paint notices
Lead
NYC Admin Code §17-123
DOHMH/HPD
Every 2 Years, Starting in 2026
15-Feb
Steam radiator notices
Steam Radiators
Int 925-A / LL151
HPD
Yearly
15-Feb
FDNY Checklist & Bulletin distribution
FDNY
FDNY Rules
FDNY
Yearly
1-Mar
Deadline to appeal assessed value
Taxes
RTPL
DOF
Yearly
15-Mar
Personal exemptions (STAR, DHE, DRIE, Veterans, Clergy, SCHE, SCRIE)
Taxes
RTPL
DOF
Yearly
1-May
Annual energy & water benchmarking
Energy Code
LL84
DOB/BEAM
Yearly
1-May /
30-June for 2026 buildings
Local Law 97 emissions reporting
Energy Code
LL97
DOB/BEAM
Yearly
31-May
Heat Season ends
Boiler
NYC Admin Code §27-2029
HPD
Yearly
31-Jul
DHCR / ARRO Rent Registration
Rent Stabilized
HCR
DHCR
Yearly
1-Sep
Property Registration
Buildings
HCR
DHCR
Yearly
1-Oct
Heat Season begins
Boiler
NYC Admin Code §27-2029
HPD
Yearly
15-Oct
Window A/C Support Brackets
Facade
NYC Admin Code §27-2029
HPD
Yearly
31-Oct
Energy efficiency grade posting
Energy Code
LL33
DOB/BEAM
Yearly
1-Nov
Cooling tower certification
Cooling tower
LL77
DOB/DOHMH
Yearly
31-Dec
Bedbug report
Bedbug
LL69
HPD
Yearly
31-Dec
Boiler inspections and filings
Boiler
LL62 / DOB Rules
DOB
Yearly
31-Dec
Elevator inspections
Elevator
ASME A17.1
DOB
Yearly
31-Dec
Lead paint inspections
Lead
LL1
HPD
Yearly
31-Dec
Parapet inspection
Parapet
NYC Admin Code §28-301.1.1
DOB
Yearly
31-Dec
Drinking water tower inspection
Water Tower
NYC Admin Code §17-194
DOB/DOHMH
Yearly
Varies
Oil tank registration
Boiler
DEP Registration
DEP
Yearly
Varies
DEP Backflow Preventer Test
Backflow
NYC Plumbing Code § 312.10
DEP
Yearly
Varies
Fire Alarm & Sprinkler Inspections
Fire Alarm Sprinkler
NFPA
FDNY/DOB
Every 2 years
31-May
Steam Radiator Inspections: non-owner occupied units with residents under 6 years
Tenant
Intro 925-A / LL151
DHCR
Every 4 years
31-Dec
Gas piping system inspections
Gas
LL152
DOB/HPD
Every 5 years
21-Feb
Façade inspection & report
Façade
LL11 / FISP
DOB
Every 5 years
31-Dec
Retaining Wall Inspection
Façade
LL37
DOB
Every 6 years
31-Dec
Parking garage inspections
Garage
LL126
DOB
Every 10 years
31-Dec *
EER energy audits & retro-commissioning
Energy Code
LL87
DOB/DOF
One-time
1-Aug 2025
Lead paint inspections common areas
Lead
LL31
HPD
One-time
31-Dec 2025
Local Law 88 (Lighting upgrades & submetering reporting)
Energy Code
LL88
DOB/BEAM
One-time
28-Jul 2026
Cooperative Application Timeline Law
Intro. 1120-A and Intro. 1120-B
Co-op Admissions
LL 2026/058
HPD
One-time
1-Jan 2027
Single-plunger brake
Elevator
ASME A17.1
DOB
One-time
1-Jan 2027
Natural gas detectors in dwelling units
Gas
LL157
DOB/HPD
On November 25, 2025, the DOB announced the following one-time extensions:
1) LL87 2025 buildings, ending in BBL 5: Deadline has been extended to 3/31/2026
To find out if when your building’s Local Law 97 is due, visit The Department of Building’s Covered Buildings List
BlOGS
LL87 Energy Audits — When Is Your Building Due?
Explore the background of Local Law 87 in NYC, why energy audits and retro-commissioning matter, and how to find your compliance due date using your building’s tax block number. ...more
NYC Compliance Calendar
June 06, 2026•4 min read
NYC Energy Compliance Guide for Co-ops & Condos: Local Laws 84, 87, 33, 88 & 97 Explained
A plain-English guide for NYC co-op and condo boards to Local Laws 84, 87, 33, 88 and 97. Deadlines, penalties, and how to stay compliant. ...more
NYC Compliance Calendar
June 06, 2026•4 min read
LL33 Energy Grades: What Your Building’s NYC Energy Score Really Means
Explore what Local Law 33 energy grades mean for your NYC building, why the letter grade posted at your entrance matters, and how unique uses like 24/7 grocery stores can impact your score. ...more
NYC Compliance Calendar
May 30, 2026•4 min read
HPD vs. DHCR Rent Registration: What NYC Boards Need to File — and When
Learn the difference between HPD property registration (Sept 1) and DHCR/ARRO rent registration (July 31) for NYC co-op and condo boards — deadlines, rules, and risks. ...more
NYC Compliance Calendar
May 16, 2026•3 min read
Local Law 84 Benchmarking: NYC Energy & Water Reporting Background and Why It Matters
Learn the background behind NYC’s Local Law 84 benchmarking requirement — what it is, why it exists, who it applies to, and how May 1 deadlines fit into the city’s energy strategy. ...more
NYC Compliance Calendar
May 09, 2026•3 min read
Single-plunger Brakes: What Buildings Must Do in 2026
NYC co-op and condo boards must upgrade elevators with plunger brakes by Jan 1, 2027. Learn what it means, who’s responsible, and how to plan now to avoid costly surprises. ...more
NYC Compliance Calendar
April 23, 2026•1 min read
Get your Borough-Block-Lot Number
BBL Lookup
Get your Borough-Block-Lot Number
The Folson Group, led by Tina Larsson and Mark Foley, are recognized as leading financial consultants and efficiency experts for co-op/condo boards and building owners.
With over 50 years of combined experience, they excel at analyzing complex financial data to deliver real-world results. The firm uses proprietary benchmarks, including operating and project cost data from over 200 buildings, to give clients a competitive edge.
Their expertise in cost reduction and value enhancement has helped clients achieve significant savings, with some buildings avoiding maintenance increases for up to 7 years. They are the go-to resource for many New York City co-op and condo boards.
