Alaska AS 29.40.020 — Comprehensive Plan Consistency Doctrine (AK)
Tracked preemption from the Alaska overlay bundle.
Overview
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Effective
1985-01-01
Sunset
—
Authority
state
Scope
state:AK
Other Alaska preemptions
Alaska — No Statewide Short-Term Rental PreemptionAlaska — No Statewide Density / ADU / IZ / Design PreemptionAlaska Coastal Management Program — Terminated 2011 (No Statewide Coastal Overlay)Alaska AS 29.40.010 — Borough-Level Zoning Enabling (No State Override)Alaska AS 29.10.200 — Home-Rule Procedural FloorAlaska AS 29.40.130 — State-Owned Airport Noise & Hazard CoordinationAlaska — Federal & ANCSA Native Lands Parcel Layer (Non-Zoned)Alaska Title 38 — State Proprietary Land Preemption (Parcel-Level)
Primary-source summary
**Last reviewed**: April 2026
**Activity level**: Low — Alaska retains a strongly local-control / home-rule framework. No MBTA-Communities-style mandate, no statewide ADU or density preemption, no statewide STR preemption. Zoning authority is delegated through AS 29.40, and the unusual borough/city unified structure is the dominant wrinkle.Trigger predicate
When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.
city.has_zoning_jurisdiction == TruePreempted fields
2 fields on the base district schema are rewritten when the trigger fires.
| Field | Op | Value | Note |
|---|---|---|---|
comprehensive_plan_required | override | True | Every first-class and home-rule borough, and any second-class borough that exercises planning powers, must adopt a comprehensive plan by ordinance |
zoning_amendment_consistency_test | override | substantive_in_accordance_with_comp_plan | Zoning and subdivision regulations under AS 29.40.030–.040 must be 'in accordance with' the comprehensive plan; Alaska courts treat this as a substantive consistency test, not a box-check (Griswold v. City of Homer; South Anchorage Concerned Coalition) |
Citation
Authority source
Alaska Statutes AS 29.40.020
§ AS 29.40.020 (Comprehensive Plan)
Research notes
The closest thing Alaska has to a state-level zoning constraint, and the only one with meaningful judicial teeth. A zoning change unsupported by — or contrary to — the comprehensive plan is vulnerable on appeal. Procedural/judicial rather than a funding or administrative override mechanism. City records that map to this overlay should carry comprehensive-plan title, adoption year, and most recent amendment so consistency challenges can be evaluated.