The Greenburgh Planning Board reviewed the steep slope permit for a new two-car detached garage at 50 Mulligan Lane, focusing on potential stormwater runoff issues and mitigation measures.

Catching Up

Previously, the Zoning Board of Appeals granted a variance for the accessory garage at 50 Mulligan Lane, allowing its height to reach 19 feet, exceeding the usual 12-foot limit. The project, which includes a studio/loft and utility services, requires a Steep Slope Permit due to planned disturbances on steep terrain. A public hearing for this permit was held on November 5, 2025, and subsequently adjourned to December 3, 2025.

Key Insights

The discussion primarily centered on managing stormwater runoff and its potential impact on surrounding areas.

  • A draft decision includes conditions for reinforced silt fencing and straw bales to manage public runoff.
  • The building department confirmed no variance is required for the gravel driveway.
  • Board members focused on the potential downstream effects of stormwater discharge.

Zooming In

The proposed garage at 50 Mulligan Lane is a two-car detached structure designed to include a studio/loft, equipped with water, sewer, and electric services. The steep slope permit is necessary due to planned disturbance of approximately 250 square feet to 15-25% slopes and 615 square feet to 25-35% slopes on the property.

Next Steps

The public hearing for the steep slope permit at 50 Mulligan Lane is scheduled to resume on December 3, 2025, where further discussion and potential action on the permit are expected.