Westchester Renovation Permits & Code: The 2026 Complete Guide
A practical 2026 guide to Westchester renovation permits and code requirements — the building permit, architectural review, wetlands and steep-slope rules, septic capacity, FEMA flood compliance, and town-by-town review timelines. Links to deeper guides for every Westchester city, town, and village we've covered.
Westchester Environmental Permit Reviews: Wetlands, Slopes, and Trees
Architectural Review Boards review what your house looks like; Conservation Boards review where your project sits on the land. This guide maps which Westchester towns regulate wetlands, steep slopes, and protected trees, how those layers interact with NYS DEC and your building permit, and how to design around environmental constraints from the start rather than retrofitting compliance late.
New Castle Environmental Review Permits: Wetlands, Slopes, and Trees
New Castle's Conservation Board sits between the homeowner and the building permit, reviewing three distinct permit categories — wetlands and watercourse buffers, steep-slope disturbance, and protected-tree removal. This guide walks through how each permit works, what the application requires, and how to design around all three layers from day one rather than retrofitting compliance late.
Renovating in Armonk (North Castle): Wetlands, Lot Coverage, and the Long Permit Timeline
Armonk's large lots don't simplify renovation — they multiply the regulatory layers, with active wetlands review, strict lot coverage and floor-area-ratio limits, and county-level septic review compounding the timeline. This guide breaks down North Castle's stacked review process and how to compress 12-month pre-construction calendars into 6 to 9 months by running the approvals in parallel.