Mount Vernon, N.Y., Code of Ordinances ch. 149 § 149-20
Prevention of fire spread
Operative Text
A. Walls and ceilings shall be maintained free from cracks and openings which permit flame or excessive heat to enter the concealed space. B. In buildings of mixed occupancy, nonresidential space shall be separated from residential space by approved fire separations which will retard the spread of fire. C. Garages in or attached to a residential building shall be separated from other spaces in the building by approved fire separations which will retard the spread of fire and prevent flammable or toxic vapors originating within the garage from being transmitted to other parts of the building.
Mount Vernon Code ch. 149 § 149-20 establishes structural fire-safety standards for residential buildings. Walls and ceilings must be kept free of cracks or openings that could allow flames or excessive heat to reach concealed spaces. In mixed-use buildings, nonresidential areas must be separated from residential areas by approved fire separations, and attached or interior garages must similarly be isolated to prevent fire spread and the migration of flammable or toxic vapors into living areas.
Plain English — not legal advice.
Under ch. 149 § 149-20, compliant property operators in Mount Vernon routinely inspect walls and ceilings for cracks or gaps that could compromise fire containment in concealed spaces. In mixed-occupancy buildings, operators ensure that approved fire separations are in place and maintained between commercial and residential areas. Where a garage is attached to or located within a residential building, operators verify that the required fire separations are intact and capable of blocking both fire spread and vapor transmission.
General guidance for property managers — not legal advice for your specific situation. Consult an attorney for advice on your case.
Section 149-20 of the Mount Vernon Code gives residents a basis to expect that their building's walls, ceilings, and any shared boundaries with commercial spaces or garages are properly sealed against fire and toxic vapors. If a tenant observes cracks, missing fire barriers, or other conditions that appear to violate these standards, they may report the concern to the Mount Vernon building or code enforcement office. Tenant-rights organizations familiar with local housing codes can help residents understand what documentation to gather and what complaint processes may be available.
General guidance for tenants — not legal advice for your specific situation. Consult a tenant-rights organization or attorney for advice on your case.
Generated November 7, 2026 — auto-generated, not yet human-reviewed. See /transparency for methodology.
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