Detail Life-Safety Items in the Drawings
Plan reviewers flag missing or vague details on egress windows (net clear opening, sill height), stair geometry (rise/run/headroom), and guards/handrails (height, continuity, fastening). Put full sections and schedules on the sheets—don’t bury them in notes.
Structure & Energy Coordination
Dormers and reframing require stamped calculations; coordinate header sizes, tie locations, and fastening schedules. For the energy code, show the exact roof assembly: R-values, vapor control location, and air-barrier continuity, plus product cut sheets for skylights and insulation.
Historic Context & Visibility
In landmark districts, include sightline studies and material samples to prove low visibility from the public way. Align LPC comments with DOB sets so revisions aren’t bounced between agencies.
Download our pre-submission checklist for faster approvals on the NYC attic permits & compliance page.