Richmond Climate Zone & Energy Code

Climate Zone: IECC Climate Zone 4A (mixed-humid). Richmond's inland James River location produces hot, humid summers (94°F/76°F cooling design) and genuine winters (16°F heating design). Strong economic growth driving residential construction.

Energy Code & Manual J Requirement: Virginia Uniform Statewide Building Code (IECC 2021). ACCA Manual J required for all Richmond metro HVAC permit applications.

Local Electric Utility: Dominion Energy Virginia (Dominion Power)

Building Department: City of Richmond Bureau of Permits & Inspections

Local Trade Association: ACCA Mid-Atlantic Chapter / ASHRAE Chesapeake Chapter / SMACNA Mid-Atlantic