Before You Build in Yonkers, NY: Permit & Rule Checklist (2026)

All residential pools in Yonkers must comply with NY State Residential Code Appendix G: 48-inch barrier, self-closing/self-latching gate, and pool alarm required. Building permit mandatory.

Retaining walls over 4 ft tall (from bottom of footing to top) require a building permit and engineered drawings in Yonkers. Walls with surcharge loads require engineering at any height.

NY Real Property Law §840 governs shared boundary fences and cost-sharing between neighbors. Yonkers does not require neighbor consent for fences on your own property, but spite fences may be actionable.

Most fences in Yonkers require a building permit from the Department of Housing and Buildings, especially over 6 ft or where structural. Pool barrier fences always require a permit.

Yonkers Zoning Code (Chapter 43) typically limits residential fences to 4 ft in front yards and 6 ft in side/rear yards. Corner lots have sight-triangle restrictions. Taller fences require a variance from the Zoning Board.

All pool installations in Yonkers require a Building Department permit before construction. Applications include site plan, fence plan, electrical plans, and pool alarm compliance.

Hot tubs and spas in Yonkers require building and electrical permits. Units with rigid lockable safety covers meeting ASTM F1346 are exempt from the 48-inch pool fence requirement.

Yonkers enforces the NYS Residential Code Appendix G: pool barrier minimum 48 inches above grade, self-closing/self-latching gate, bottom gap 2 inches maximum, chain link mesh max 2.25 inches.

Above-ground pools in Yonkers require building permits and must comply with NYS Residential Code Appendix G. Pool walls at least 48 inches tall may serve as the barrier if ladder is removable/lockable.

Pool alarms required by NY Executive Law §387(14) for all pools built or substantially modified after Dec 14, 2006. Alarms must meet ASTM F2208 and detect surface entry anywhere in the pool.

Converting a garage to living space in Yonkers requires building permits, compliance with residential code (egress, insulation, heat, ventilation), and typically replacement of required off-street parking.

Yonkers permits accessory dwelling units in specified residential districts subject to owner-occupancy, off-street parking, and setback requirements under Zoning Ordinance Chapter 43. NY has no statewide ADU preemption.

Tiny homes on foundations in Yonkers are regulated as ADUs or primary dwellings under Zoning Ch. 43. Tiny homes on wheels (RVs) cannot be used as permanent residences in residential zones.

Carports in Yonkers are treated as accessory structures requiring building permits and conformance with zoning setbacks. Must be anchored, meet wind-load requirements, and respect side/rear setback minimums.

Sheds in Yonkers under 100-144 sq ft (per zoning district) may be exempt from building permits but must meet setback rules. Larger sheds require Building Department permits.

Small recreational fire pits are generally allowed if under 3 ft tall and 4 ft in diameter, using clean dry wood or charcoal, and never left unattended. Must be set back from structures and property lines.

Open burning of brush, leaves, and garbage is prohibited in Yonkers year-round. NY DEC statewide burn ban runs March 16 to May 14 for any brush burning.

Street trees (trees in the public right-of-way) require city permission to trim. Private trees may be trimmed by owners; neighbor limbs may be pruned to property line.

Yonkers Water Bureau customers follow NYC DEP / Westchester drought rules. Year-round conservation encouraged; mandatory restrictions imposed during declared droughts.

Street trees may NOT be removed by private parties. Yonkers has a tree preservation ordinance (Chapter 83-A / tree code) requiring permits for removal of large trees on private property in some circumstances.