Brooklyn co-op and condo alterations require board approval via an 'Alteration Agreement' in most buildings. Boards impose architect/engineer review, insurance, and workhours. Landmark districts require additional LPC certificate of appropriateness.
Nearly all Brooklyn co-ops and condos require shareholders/unit owners to obtain board approval before any alteration affecting the apartment or building through a standardized Alteration Agreement. The agreement typically requires plans stamped by a licensed architect or engineer, proof of contractor insurance (often $2M–$5M liability plus workers' comp), DOB permits where applicable, designated work hours (commonly weekdays 9 AM–5 PM), escrow deposits, and indemnification. The board has broad discretion under the business judgment rule (Levandusky) to approve or deny. Buildings within LPC historic districts (Brooklyn Heights, Park Slope, Fort Greene, Cobble Hill, Carroll Gardens, DUMBO) must additionally secure an LPC Certificate of No Effect or Certificate of Appropriateness for exterior changes. NYC DOB permits are required for structural, electrical, plumbing, mechanical, and any alteration of egress. Landmarked interiors are rare but exist.
Unauthorized alterations: board may fine, require removal, or commence ejectment proceedings. LPC violations: $1,000–$5,000+. DOB unpermitted work: $2,500+ per violation.
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Kings County, NY
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Kings County, NY
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Kings County, NY
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Kings County, NY
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Kings County, NY
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