Co-op and Condo Board Compliance in NYC: Alteration Agreements, House Rules, and Filings
9 min read · Updated 2025-01-15
NYC co-op and condo board compliance guide: alteration agreements, subletting policies, DOB filing requirements for unit renovations, and condo offering plan amendment obligations.
Co-op and Condo Board Obligations
What is a co-op alteration agreement and why does it matter?
A co-op alteration agreement is a contract between a shareholder and the co-op corporation that governs renovations to the shareholder's apartment. It specifies what work requires board approval, the insurance and licensing requirements for contractors, noise restrictions and work hours, indemnification obligations, and the deposit or bond required to cover damage to common areas. Before starting any renovation in a co-op, review the building's alteration agreement carefully — violations can result in stop work orders from the board and even lease termination.
What renovations require co-op or condo board approval?
Most significant alterations require board approval: structural changes, changes to plumbing or electrical systems, HVAC modifications, changes to windows or the building envelope, any work requiring DOB permits, and any change that might affect other units or common areas. Even "cosmetic" work like flooring replacement often requires board notification, especially if it involves removing existing soundproofing layers. Read the proprietary lease (co-op) or condo bylaws carefully — they define what's covered.
What contractor insurance does a co-op or condo building typically require?
Co-op and condo buildings typically require contractors to carry: Commercial General Liability (minimum $1M per occurrence, $2M aggregate is standard, many buildings require higher limits); Workers' Compensation; Employer's Liability; and for larger projects, Umbrella/Excess Liability. The co-op corporation or condo association is named as an additional insured on the CGL policy. The contractor's insurer must be authorized in New York and rated at least A-/VII by A.M. Best.
What are typical co-op house rules?
House rules are the operational guidelines adopted by the co-op board that govern day-to-day building life. Common provisions: move-in/move-out scheduling and fees, elevator padding and protection requirements, noise restrictions (especially for work or amplified sound), hallway storage rules, pet policies, garbage disposal rules, common area use policies, and rules for alterations and renovations. Shareholders are bound by house rules as part of the proprietary lease. Violations can result in fines or other board action.
What are a condo board's obligations for the building's DOB compliance?
The condo board (acting through the managing agent) is responsible for the building's compliance with all NYC building codes and regulations — FISP inspections, boiler inspections, elevator inspections, LL152 gas piping inspections, LL84 benchmarking, and LL97 compliance. These obligations apply to the common areas and building systems. Individual unit owners are responsible for permits and compliance related to their own unit renovations. The condo board should maintain a compliance calendar covering all required filings.
What happens when a condo offering plan needs to be amended?
Condo offering plans must be amended whenever there are material changes to the plan — physical changes to the development, price changes, changes to unit mix, or changes in the projected budget. Amendments must be reviewed and accepted by the NY State Attorney General's office (Real Estate Finance Bureau) before they can be used for sales. Amendment preparation and filing requires an attorney experienced in AG condo filings. Post-closing amendments (for changes after all units are sold) have a different, simpler process.
What is the house rules enforcement process if a shareholder violates them?
If a shareholder violates house rules, the board typically first sends a written warning. If the violation continues, the board may issue a fine (if the proprietary lease authorizes it), restrict building privileges, or in extreme cases initiate a termination of the proprietary lease. Termination requires legal proceedings and is reserved for serious or repeated violations. Most boards prefer to resolve issues through communication before escalating to legal action.
Do co-op shareholders need their own homeowner's insurance?
Yes. Co-op shareholders should carry a HO-6 (condominium/co-op unit owner) policy that covers: personal property, improvements made to the unit above the building's base condition (betterments and improvements), personal liability, and loss of use. The co-op corporation's master policy covers the building's structure and common elements, but the unit owner's personal property and interior alterations are not covered by the master policy. Review the co-op's master policy to understand where the building's coverage ends and your personal coverage must begin.