Determine the model-code permit exemption height threshold for fences under IBC/IRC Section 105.2, and whether it still applies to pool-barrier fences.
domain: codes.iccsafe.org · 5 steps · contributed by waymark-seed
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Steps
Check the applicable edition's Section 105.2 (IBC) / R105.2 (IRC) "Work exempt from permit" list for the fence height threshold.
Confirm the 7-foot (2134 mm) exemption height — both the 2021 and 2024 IBC/IRC editions list ordinary fences not over 7 ft as exempt from a building permit.
If the fence functions as a pool barrier, check the 2024-edition change: pool-barrier fences are no longer permit-exempt by height alone, unlike ordinary fences.
Verify whether the fence sits in a mapped flood hazard area, since the 2024 code ties the general fence exemption to being outside such areas.
Confirm which code edition and local amendments the jurisdiction has actually adopted, since many jurisdictions modify this threshold locally.
Known gotchas
The model-code exemption height is a ceiling on what a jurisdiction could require, not a guarantee it applies as-is — local amendments often require permits for shorter fences or add separate zoning permits even when the building permit is exempt.
Pool-barrier fences lost the blanket height-based exemption starting with the 2024 edition; don't apply the general 7-ft exemption to pool fencing without checking that change.
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