New York City’s heating season runs from October 1 through May 31, and steam radiators are a common source of tenant complaints when they leak, corrode, or fail to operate safely. HPD began enforcing Local Law 151 of 2025 on May 9, 2026. The law requires certain buildings to inspect steam radiators and respond to defects within set deadlines.
A separate annual notice cycle opens on January 1, 2027. Less than two months away. Owners of Brooklyn buildings with steam heat should identify covered apartments, prepare tenant notices, and confirm who is qualified to inspect before the cycle begins.
Which Brooklyn buildings and radiators are covered?
Local Law 151 generally applies to multiple dwellings with three or more residential units that use steam heat. Required inspections cover common areas and apartments where a child under six resides. Covered radiators must be inspected at least once every two years; that does not mean every radiator must be inspected annually.
The inspection checks each radiator component for safe operation and looks for visible signs of defects or water damage, including leaks, corrosion, and browning on floors or walls. The owner’s records should make clear which units and common areas were inspected and when.
The two-year inspection schedule and annual notice cycle are related, but they are not the same task. The notice helps identify apartments where a child under six resides. That information helps owners determine which units require an inspection. Check HPD’s steam radiator inspection guidance and forms for current requirements.
What are the January-to-March 2027 notice deadlines?
The first annual notice cycle begins in January 2027. Use HPD’s official form, marked “For use as of January 1, 2027,” and follow the required delivery method and language instructions.
- January 1–16: Distribute the annual notice to tenants as required. HPD’s form is available in English and Spanish, and HPD provides additional translations.
- February 15: Tenants must respond to the inquiry about whether a child under six resides in the unit.
- March 1: If there is no written or verbal response by February 15, and the owner has no other knowledge that a child under six resides there, submit HPD’s Tenant No Response Form.
The notice explains that a child “resides” in a unit when the child routinely spends 10 or more hours per week there. Tenants should also notify the owner if a child under six begins residing in the apartment during the year. Keep a record of when and how each notice was delivered and of responses or other relevant information.

What must an owner do when an inspection finds a defect?
The law sets short deadlines for reporting and correcting radiator problems:
- Within 48 hours: The inspector must notify the tenant, owner, and HPD of a defect or damage.
- Within 24 hours: If a condition is hazardous to life or safety, the radiator must be taken out of service.
- Within seven days: The owner must repair or replace a radiator with a hazardous condition.
- Within 14 days: Other identified defects must be corrected.
An uncontrolled steam leak or severe corrosion requires immediate boiler de-energization. Owners should have a clear process for receiving an inspection finding, notifying the right people, arranging qualified repairs, and recording when each step is completed.
These timelines matter during heat season, when a radiator defect can affect both safety and heat service. HPD can enforce housing conditions through violations and Housing Court. The city’s newer Housing Court fast-track process concerns qualifying building-wide emergencies, including immediately hazardous heat or hot-water violations affecting at least one-third of apartments or the whole building. It is not an automatic fast track for every individual radiator defect. Owners should treat a hazardous finding as urgent and consult counsel when a violation or court matter arises.

Who is qualified to perform the inspection?
HPD’s guidance identifies several categories of qualified inspectors, including:
- Licensed master plumbers.
- High-pressure boiler operating engineers or stationary engineers.
- Oil-burning-equipment installers and mechanical contractors.
- NYCHA heating plant staff.
- People working under the direct and continuing supervision of a qualified professional.
- Building superintendents who have reviewed and understood HPD’s Steam Radiator Inspection Training Manual and completed the required certification.
A superintendent can use the training and certification path, but should not assume that ordinary building experience alone is enough. The owner and superintendent must complete HPD’s Certification of Building Owner and Building Superintendent when this route applies. Inspectors must also provide HPD’s Affidavit of Qualification of Inspector, which HPD says is valid for the calendar year. Review the current HPD inspector guidance and forms before assigning inspections.
What records must owners keep, and what can tenants request?
Use HPD’s official Record of Steam Radiator Inspection form for each inspected apartment and for common areas. Keep the inspection findings, inspector qualification information, notice delivery and response records, and documentation of any corrective work. Organize the records so they can be found and presented if HPD requests them.
Tenants may request a copy of records required to be kept as a result of the visual inspection of their unit related to the radiator. A workable system should therefore let staff retrieve the records for a particular apartment without searching through an unorganized building file.
Failure to maintain required records or present notices can result in civil penalties of up to $500. The penalty is a modest amount compared with many building exposures, but missing records can also make it harder to show that required steps were completed.
How does the administrative workload differ in a 30-unit and a 300-unit building?
The rule applies to both buildings, but the amount of coordination can be very different. The following example is illustrative, not a required inspection count:
- 30-unit building: Staff may need to track 30 notice deliveries and responses. If eight apartments have a child under six and lack a qualifying inspection within the two-year period, the owner must arrange inspections for those apartments, along with required common-area inspections.
- 300-unit building: The same process could involve 300 notice records. If 75 apartments have a child under six and lack a qualifying inspection, the owner needs a schedule for those units and the common areas, plus a reliable way to track findings and deadlines across the building.
In either case, the owner needs to establish which units are due for inspection, not simply order duplicate inspections without checking the prior records. Larger buildings may need a shared tracking file or property-management system with assigned responsibilities and deadline reminders.

What should Brooklyn owners do before January 1?
Owners of steam-heated buildings with three or more units can use the weeks before the notice cycle to prepare:
- Build the notice process into January operations. Select the current HPD notice, confirm how it will be delivered, and plan to complete distribution between January 1 and January 16.
- Identify the inspector. Confirm whether the superintendent meets HPD’s training and certification requirements or whether a qualified outside professional is needed. Obtain the inspector affidavit.
- Check the inspection history. Identify which apartments and common areas need an inspection within the two-year period.
- Pre-schedule inspections. Reserve time with the superintendent or vendor, especially if several units need access.
- Set up defect-response steps. Assign who will receive findings, notify HPD and affected tenants, arrange repairs, and monitor the 24-hour, seven-day, and 14-day timelines.
- Organize records for access requests. Store notices, responses, inspection forms, qualifications, and repair documentation in a location where authorized staff can retrieve them.
These steps are relevant across Brooklyn, including owners seeking a Property Management Company in Bushwick, a Property Management Company in Bed-Stuy, Property Management in East New York, or Property Management Services in Crown Heights. Steam-heated buildings in Ridgewood, Queens should also check whether the law applies to their building.
For the exact statutory language, review Local Law 151 of 2025 and HPD’s official inspection guidance. Owners coordinating broader building operations can also review Landlord Management’s Brooklyn property management services and NYC building compliance resources.
This article provides general educational information, not legal advice. Confirm current requirements with HPD and consult qualified counsel about a specific violation or court matter.

