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Kootenai County, ID Building Setbacks & Zoning: Setback Rules (2026)

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

Key Facts

Front yard setback
25 feet
Side yard setback
10 feet (6 feet on alley)
Rear yard setback
25 feet
Flanking street setback
15 feet
Applies to
all structures uniformly
Governing section
LUDC 8.2.409(A), Ord. 493
Minimum parcel size
8,250 sq ft (5 acres over aquifer)

Summary

Kootenai County's Restricted Residential Zone imposes one uniform setback table on every structure, per LUDC 8.2.409(A): a 25-foot front yard, 10-foot side yard (shrinking to 6 feet where the lot backs onto an alley), 25-foot rear yard, and 15-foot setback where a parcel flanks a second street. Off-street parking is handled separately under section 8.4.1301, not folded into these distances.

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.

8.2.409: SETBACKS AND OFF STREET PARKING: A. Setbacks: The following setbacks shall apply to all structures in the Restricted Residential Zone: Setback Type Distance Front yard 25 feet Side yard 10 feet Side yard, with an alley 6 feet Rear yard 25 feet Flanking street 15 feet B. Off Street Parking: Standards for off street parking are set forth in section 8.4.1301 of this title. (Ord. 493, 6-9-2016)

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

302 push the floor up to a full five acres. 409(A) sets one setback table that shall apply to all structures: 25 feet at the front lot line, 10 feet on each side, only 6 feet on a side that runs along an alley, 25 feet at the rear, and 15 feet on a flanking street where a corner lot faces a second public road. 1301. 203 makes compliance a condition of using or building on the land at all, providing that no building, structure, or land shall hereafter be used or occupied, and no building or structure shall hereafter be erected, constructed, reconstructed, moved, or structurally altered except in conformity with the title's zone provisions, unless federal or state law preempts them.

204 layers the county building code, title 7, chapter 1, on top, with the stricter of the two controlling if they conflict. The land use title traces its authority to Idaho's Local Land Use Planning Act, title 67, chapter 65, Idaho Code, along with title 31, chapter 7 and title 50, chapter 13, the statutes that let Kootenai County zone the unincorporated area at all.

Violations & Fines

Setback violations do not carry their own fine in title 8, so Kootenai County Code 1-4-1's general penalty controls: a conviction for building or using land out of conformity with the zone's provisions draws up to a $1,000 fine, up to six months in jail, or both, and section 1-4-2 treats each day the encroaching structure stays up as a separate offense. Community Development opens these cases as code-compliance complaints first, giving the owner a chance to relocate, modify, or remove the structure before a citation is filed.

Frequently Asked Questions

How far back from the street must a house sit in Kootenai County's Restricted Residential Zone?
25 feet from the front lot line, per LUDC 8.2.409(A). The same table sets the rear yard at 25 feet too, while side yards need only 10 feet, shrinking to 6 feet on a side that runs along an alley.
Does a shed or detached garage get a smaller setback than the house?
No. LUDC 8.2.409(A) applies one setback table to all structures in the Restricted Residential Zone, so an accessory building follows the same 25-foot front and rear, 10-foot side, 6-foot alley-side, and 15-foot flanking-street lines as the house.
What is a flanking street setback and when does it apply?
It applies on a corner lot where a second public road runs along one side of the parcel. LUDC 8.2.409(A) sets that distance at 15 feet, shallower than the 25-foot front and rear lines but more than the standard 10-foot side yard.
What if my Restricted Residential parcel sits over the aquifer?
Setback distances stay the same, but LUDC 8.2.403(B) raises the minimum parcel size to five full acres for land subject to section 8.7.302's Rathdrum Prairie Aquifer protections, well above the standard 8,250-square-foot minimum lot.

Sources & Official References

Other rules in Kootenai County

All Kootenai County rules

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