Kenai Peninsula Borough, AK Building Setbacks & Zoning: Setback Rules (2026)
Key Facts
- Front setback
- 30 feet, R-1 LOZDs
- Rear setback
- 20 feet, R-1 LOZDs
- Side setback
- 15 feet, R-1 LOZDs
- Shore setback
- 50 feet where KPB 21.18 applies
- Daily fine
- $300 per day, KPB 21.50.055
Summary
In the Kenai Peninsula Borough outside the cities, yard setbacks exist only inside an adopted Local Option Zoning District. KPB 21.44.160(C)(1) sets the Single-Family Residential (R-1) LOZD standard at 30 feet from the front yard line, 20 feet from the rear, 15 feet from the sides, and 50 feet from the shore where the Kenai River habitat protection district under KPB 21.18 applies.
1.Setbacks. Setbacks for structures shall be 30 feet from the front yard line, 20 feet from the rear yard line, 15 feet from the side yard lines, and 50 feet from the shore and where applicable subject to the provisions of KPB 21.18.
Full Breakdown
The borough has no zoning-wide setback ordinance for the unincorporated area; setback minimums appear only where property owners have petitioned to form a Local Option Zoning District (LOZD) under KPB 21.44.030. In a Single-Family Residential (R-1) LOZD, KPB 21.44.160(C)(1) requires 30 feet from the front yard line, 20 feet from the rear yard line, 15 feet from the side yard lines, and 50 feet from the shore, layering in the KPB 21.18 anadromous-waters habitat protection setback where a lot borders the Kenai River or another salmon stream.
Other adopted LOZD types set different figures: the Rural Residential (R-R) district requires 60 feet front, 40 feet rear and 25 feet side, the Small Lot Residential (R-2) district requires 20 feet front, 20 feet rear and 10 feet side, and the Multi-Family Residential (R-M) district varies its setbacks between single-family and multi-family units on the same lot. Fences, retaining walls, driveways, window awnings, temporary buildings used 30 days or less, and patios or decks under 18 inches high do not count as setback-triggering structures under the definitions in KPB 21.44.230.
A structure with a permanent foundation needs a development notice under KPB 21.44.135 confirming its dimensions and placement before construction. Outside an adopted LOZD, and outside the cities, the borough imposes no yard setback at all.
Violations & Fines
Building within the required front, rear, side or shore setback in an R-1 LOZD is a Development Standards violation of KPB 21.44.160(C), fined $300 per day under KPB 21.50.055, with each day of the encroachment a separate offense under KPB 21.44.150. A property owner may instead apply for a building setback encroachment permit through the Planning Commission, appealable to the hearing officer within 15 days of the decision under KPB 21.20.250.
Frequently Asked Questions
What is the front yard setback in an R-1 LOZD?
Do setbacks apply if my lot is not in an LOZD?
Why is the shore setback 50 feet in some districts?
Sources & Official References
Other rules in Kenai Peninsula Borough
Compare Kenai Peninsula Borough to another location·View the Alaska building setbacks & zoning overview
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