Parapet Repair in NYC and the Annual Parapet Observation Rule

A parapet is the part of a wall that rises above the roof line. On New York row houses, walk-ups and apartment buildings, parapets take weather from both sides, carry railings and equipment, and sit right above the sidewalk — which is why the City requires many owners to have them looked at every year. This guide covers NYC’s annual parapet observation rule and the most common parapet repairs.

The rule in brief

Local Law 126 of 2021 added Section 28-301.1.1 to the Administrative Code, and DOB’s rule 1 RCNY §103-15 sets out how it works. Starting January 1, 2024, every building owner covered by the rule must have an annual parapet observation performed.

Who’s covered

All buildings with parapets fronting the public right-of-way — a street, avenue, sidewalk or other public way — regardless of height. The exceptions are:

• Detached one- or two-family homes
• Buildings with a fence or other barrier preventing access to the exterior wall

That means many attached row houses, small walk-ups and mixed-use buildings that are not part of the Local Law 11 facade program are covered by the parapet rule.

Who can do the observation

The rule allows any person competent to inspect parapets, including a bricklayer, mason, building superintendent, handyman or someone in a similar construction trade, an architect or engineer, an inspector working for a New York State-authorized insurance company, a New York State-authorized building inspector, or another individual capable of identifying hazards on the parapet.

Deadlines and records

• The observation must be completed by December 31 every year.
• Reports are not filed with DOB. Owners must keep them for at least six years and make them available on request. DOB’s advisory says failing to present a report on request results in a violation.
• For FISP buildings, DOB says a FISP report that includes all the information required by the parapet rule can serve as the observation report.

What the observation checks

The rule requires a close-up inspection of the entire parapet, which may be done from the roof or a fire escape. At minimum it must determine:

• That the parapet is plumb — within one-eighth of its cross-sectional thickness at any location
• Whether there is excessive deterioration: displacement, horizontal or diagonal cracks, missing or loose bricks or coping stones, deteriorated mortar joints, spalling or rot
• That appurtenances — telecom equipment, railings, roof access rails, gooseneck ladders, fire escape handrail attachments and signs — are installed and maintained in a stable condition

According to DOB’s parapet FAQ, the report must state whether the parapet is safe, unsafe or requires maintenance, and what is needed to remedy any conditions. Photos aren’t required, but they make the report — and any later repair — much clearer.

If the parapet is unsafe

1. The person performing the observation must immediately notify DOB by calling 311 (FISP buildings also file a FISP3 in DOB NOW: Safety).
2. The owner must immediately install public protection — such as a sidewalk shed, fence or safety netting — as needed to protect the public.
3. The unsafe condition must be corrected within 90 days of the notification, and the protection stays in place until it is.

Why parapets fail

• Exposure on both faces. Rain and freeze–thaw hit the street side and the roof side.
• Open coping joints. Water gets in at the top and works down into the wall.
• Roof flashing problems. Flashing that’s loose or improperly terminated traps water in the parapet.
• Attachments. Railings, antennas and signs bolted into masonry can crack it and let water in.
• Old, hard patch repairs that don’t move with the original brick.

Common parapet repairs

• Repointing deteriorated joints with compatible mortar (see our repointing guide).
• Resetting or replacing coping stones and sealing coping joints.
• Replacing loose, cracked or spalled brick.
• Partial or full rebuilding of parapets that are out of plumb, bulging or badly deteriorated.
• Flashing repairs where the roof meets the parapet, coordinated with roofing work.
• Re-anchoring or relocating attachments such as railings.

Some parapet work needs DOB permits and public protection; scope, building type and landmark status all matter. Your contractor or design professional should tell you what applies before work starts.

A simple annual plan for owners

1. Schedule the observation in spring or summer, not in the last weeks of December when weather and schedules are tight.
2. Have maintenance items fixed promptly so they don’t become unsafe by next year.
3. Combine parapet repairs with roof and flashing work where it makes sense.
4. File the report and repair records together, and keep them for at least six years.

How PrimeCity can help

We repair and rebuild parapets and copings as part of our masonry and facade work, and handle the roof-side flashing too. We work for homeowners, landlords and property managers in Brooklyn, the Bronx, Manhattan and the rest of the city.

Frequently asked questions

Official sources

• NYC DOB — 1 RCNY §103-15 Requirements for Inspection of Parapets (PDF)
• NYC DOB — Parapets Frequently Asked Questions
• NYC311 — Building Parapet Observations

General information only — not legal advice. Requirements change; confirm details with the issuing agency.