Product photoBuilding Registration Number / Serial Number White Aluminum Sign
Owners assembling a posting package when a registration or serial-number sign is specifically required for the property.

A five-inch stainless steel floating numeral for exterior or interior address identification.
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Replacing or adding a clearly visible building number where this size and style meet the applicable identification requirement.
Address-number height, contrast, location and visibility can be regulated. Confirm the required size and placement for the property.
5 in. Floating Stainless Steel Address Number 3 belongs in a building-owner catalog because small physical compliance items are often discovered only when an inspector, tenant complaint or violation points out that something is missing, damaged or posted incorrectly. NYC requires the owner to post and maintain a street number on the front of the building that is visible from the sidewalk. Other jurisdictions also regulate address visibility for emergency response, so owners should verify local size, contrast and placement rules. For an owner, having a clear source for the right sign, frame or posting hardware reduces the time between identifying the deficiency and correcting the physical condition. It also helps standardize replacement items across a portfolio. This does not mean the item is legally required in every building: requirements depend on city, state, occupancy, number of units, building systems and the language of the actual violation. Before ordering, compare the product’s wording, dimensions, language, material and mounting method with the official rule or agency sample. Buying the object is only one part of compliance; correct installation, placement, documentation and any required certification or filing still matter.
NYC requires the owner to post and maintain a street number on the front of the building that is visible from the sidewalk. Other jurisdictions also regulate address visibility for emergency response, so owners should verify local size, contrast and placement rules.
NYC HMC § 27-2049We do not claim independent laboratory testing of every product. Building Owner Tools Catalog selections are based on manufacturer-published specifications, practical fit for common building use cases and category coverage. Always verify current specifications with the manufacturer or retailer.