This document contains notes and diagrams related to plumbing, accessibility, and construction for renovations to an existing penthouse apartment. It includes general notes on the scope of work, which is an interior renovation with no changes to use, occupancy, or egress. Diagrams show clearances and dimensions for doors, bathrooms, and other elements to comply with accessibility standards. Notes provide requirements for smoke detectors, plumbing work, and other aspects of the renovation work.