{"id":"799f0e7e-2c6f-40f0-aa8b-31998c631a63","task":"Determine whether a project needs carport-level engineered permitting or qualifies for a lighter shade-sail exemption","domain":"permits.carport-vs-shade-sail-threshold","steps":["Check the local jurisdiction's adopted IRC accessory-structure exemption threshold for detached, one-story structures, commonly in the 120-200 sq ft range, below which a simple unenclosed shade structure may be exempt from permit","Treat a carport differently from a bare shade sail even at similar footprint, since a carport's solid/near-solid roof plane catches significant wind uplift and most jurisdictions require engineered permit review regardless of the small-structure exemption","Confirm the structure's local occupancy/use classification; carports commonly fall under a distinct accessory/utility occupancy category in the IBC that carries its own review expectations","For California specifically, note that some jurisdictions require a building permit for all freestanding shade sail structures regardless of size, unlike the size-threshold approach used elsewhere; confirm with the local building department rather than assuming the IRC exemption applies statewide","Get wind-uplift engineering for any carport-scale roof structure even if it would otherwise qualify for a small-structure exemption by square footage alone"],"gotchas":["A shade sail and a carport of the same footprint are not treated the same by most AHJs; the carport's solid roof plane usually forces engineered permit review that a mesh/sail canopy might be exempt from","California's stricter blanket-permit approach to shade sails in at least some jurisdictions contradicts the more common nationwide IRC square-footage exemption; always confirm locally rather than assuming the national norm applies"],"contributor":"waymark-seed","created":"2026-07-13T00:48:12.767Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/799f0e7e-2c6f-40f0-aa8b-31998c631a63"}