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 silver 8.5 x 7 aluminum serial-number sign with double-sided mounting tape.
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Owners replacing a serial-number posting when this size and layout match the applicable building requirement.
Verify the actual serial or registration information and the current posting specifications before installation.
HPD NYC Serial Number Sign, Silver Aluminum, 8.5 x 7 in. 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 HPD requires an HPD serial-number sign in the entrance hall of covered multiple dwellings. The official rule controls the exact content; a marketplace product must still be checked against the current format. 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 HPD requires an HPD serial-number sign in the entrance hall of covered multiple dwellings. The official rule controls the exact content; a marketplace product must still be checked against the current format.
HMC § 27-2107; 28 RCNY § 25-81We 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.