Start with Load, Location, and Layout
Create a circuit map before any wire is pulled. Run a load calculation to confirm main service capacity; if tight, plan a subpanel dedicated to the attic with spare spaces for growth. Lay out receptacles so no point along usable wall lines is more than 6′ from an outlet; include tamper-resistant types and a few USB-C receptacles in work and sleep zones. Pre-wire low-voltage drops (Cat6 for data, RG6 if needed, and speaker wire) while walls are open, keeping separation from high-voltage to minimize interference.
Protection, Ratings, and Boxes
Use AFCI protection for habitable circuits and GFCI where water is present (bath, wet bar, near sinks). Select IC/AT lighting housings or wafer LEDs to preserve the air barrier in insulated rafter bays. Box and gasket all ceiling penetrations; choose airtight, vapor-smart trim kits at slopes and skylight shafts. Label homeruns clearly and photograph rough-ins for the homeowner packet before insulation.
Lighting Layers and Controls
Design three layers—ambient, task, accent—with multi-zone dimming and scene control (Work, Wind-Down, Guest). Keep drivers and dimmers from the same compatibility list to avoid flicker. Angle wall-washers across slopes to prevent scalloping, and put night-lights or low-level LED reveals along knee-wall millwork for safe navigation.
Bath, Heat, and Specialty Loads
Provide dedicated circuits for radiant floor heat, towel warmers, or a compact infrared sauna if specified. In baths, route a quiet fan (≤1.0 sone) to the exterior with a humidity timer. Bond metal boxes properly, maintain required clearances for fixtures near the tub/shower, and use wet-location ratings where exposure is possible.
For a printable owner/GC checklist that aligns electrical scope with comfort and code, see our Attic Remodeling Service electrical planning in NYC.