Most Manhattan co-op and many condo boards regulate lock changes. Common requirements: specific lock types or brands, restricted keyways the building can key into its master system, prior written notice, and a copy of the new key held by management or the super for emergencies.
The rules exist for good reasons — emergency access, insurance, and building-wide key control. Violating them can mean fines or being forced to redo the work. Always check your alteration agreement or house rules before buying hardware.
We work within board rules daily across the West Side. Tell us your building before you buy anything and we will recommend compliant options — often including high-security cylinders keyed to the building's master system — and handle the installation cleanly.