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Kootenai County, ID Environmental Rules: Defensible Space (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Water source setback
50 ft minimum from structures
Requirement
source surrounded by defensible space
Signage
approved by fire district, IDL, or county
Site plan
must mark hydrant/water source locations
Applies to
timbered-area major subdivisions only

Summary

Wildfire mitigation plans for timbered subdivisions in unincorporated Kootenai County must identify emergency firefighting water supplies and protect them. Land Use and Development Code section 8.6.901(B)(6) bars locating a water source within fifty feet of a structure, requires the source to be surrounded by defensible space, and requires signage approved by the fire district, the Idaho Department of Lands, or the county.

These county ordinances apply to unincorporated areas of Kootenai County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

6. Identification of sufficient and accessible emergency water supplies for firefighting purposes. Water sources cannot be located within fifty feet (50') of a structure, must be surrounded with defensible space, and should be clearly identified with signs approved by the fire district, IDL or Kootenai County.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-10: Code current through: Ord. 633, passed December 23, 2025).

Full Breakdown

206(A)(7). The report must identify sufficient and accessible emergency water supplies, and each water source has to sit at least fifty feet from any structure, be ringed by defensible space so firefighters can reach and use it during a wildfire, and carry signage approved by the fire district with jurisdiction, the Idaho Department of Lands, or Kootenai County. The same section requires an explanation of any modifications or appurtenances, such as pumps or hydrants, needed to use the water source, and if pumps rely on above-ground power lines, the county can require a plan for emergency power generation.

901(A)(9), must additionally mark the location of hydrants and emergency water sources so reviewers can confirm the fifty-foot separation and defensible-space buffer before the plat is approved. A professional forester prepares and certifies the whole plan, and Community Development, together with the fire protection district or the Idaho Department of Lands, has to sign off before a final plat can record. 603, including misdemeanor liability under section 1-4-1 and a civil penalty of up to $1,000 per incident per day, capped at $20,000 per incident.

Violations & Fines

An uncertified or unmaintained defensible-space buffer around a required emergency water source can stop final plat approval under section 8.6.206(A)(7), and it exposes an approved site to general title 8 enforcement: a misdemeanor under section 1-4-1 and a civil penalty of up to $1,000 per incident per day, capped at $20,000 per incident, under section 8.8.603.

Frequently Asked Questions

What counts as defensible space around a water source?
Section 8.6.901(B)(6) does not give a foot measurement for the buffer itself, just the requirement that the water source be surrounded by defensible space and stay at least fifty feet from any structure. The fire protection district reviewing the plan sets the specific clearance it will accept before signing off.
Does this rule apply to my existing home?
It applies to water sources built to satisfy a wildfire mitigation plan for a major subdivision the county placed in a timbered area under section 8.6.206(A)(7). It is not a general defensible-space mandate for every existing house in unincorporated Kootenai County.
Who has to sign off on the water source location?
The fire protection district with jurisdiction, the Idaho Department of Lands, or Kootenai County has to approve the signage identifying the water source, and Community Development along with the fire district or IDL must approve the overall wildfire mitigation plan before the plat can record.

Sources & Official References

Other rules in Kootenai County

All Kootenai County rules

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