Block Walls in Ammon
Ammon's building permits page puts fences on its list of permit types. Under Accessory Structures it lists "Detached garages, sheds over 200 sq ft, fences, decks, and pergolas." It does not mention a block wall, so this site states no wall rule for Ammon.
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Permits and the City of Ammon rules
The City of Ammon's Building Permits page lists fences under Accessory Structures. It does not say whether a block wall counts as a fence, and we do not say a permit is or is not needed for one.
Source: City of Ammon, Building Permits page (read October 8, 2026) — confirm current requirements with the City of Ammon.
Block Walls around Ammon
The page (read October 8, 2026) says all permits are processed online through the City's portal, and lists permit types that include New Construction, Additions & Remodels, Demolition and Accessory Structures. It does not mention a wall of any kind.
The page does not mention a block wall, so what follows is our inference, not a rule: a wall built of block could be read as a fence or as something else, and the page does not say which, so anyone planning one in Ammon has a reason to ask the City's Building Department before work starts. We say nothing about any lot.
Our Ammon service area
An inquiry from Ammon is passed on to an independent local provider, who gets in touch.
See all Block Walls in Idaho Falls. We also work in Idaho Falls and the other places we list. The statement above is the City of Ammon's alone; no rule is borrowed from any other place. The City of Idaho Falls' own pages are set out on these pages: the City's building permit text, inspections before work and codes and documents listed. Source: City of Ammon, Building Permits page (read October 8, 2026).
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