Table of Contents
LAMC Sec. 9.4.5 and 9.4.6 are two separate adaptive reuse programs written into Chapter 1A of Los Angeles’s new Zoning Code, split by geography: 9.4.5 covers the Downtown Community Plan Area, while 9.4.6 covers eligible Adaptive Reuse Projects everywhere else, specifically in Commercial-Mixed Use districts, or on any lot in Density District 2 or FA, regardless of use district. A building can only be governed by one or the other, not both, though a third and broader measure, the Citywide Adaptive Reuse Ordinance, now overlays the entire city, including Downtown. Knowing which section applies to your parcel determines which office you file with, which incentives are available, and in some cases which approval procedure you follow.
Side-by-Side Comparison
| LAMC 9.4.5 (Downtown Adaptive Reuse Program) | LAMC 9.4.6 (Citywide Adaptive Reuse Program) | |
|---|---|---|
| Geography | Downtown Community Plan Area only | Outside Downtown: Commercial-Mixed Use districts, or any lot in Density District 2 or FA |
| Zoning Code chapter | Chapter 1A of the LAMC | Chapter 1A of the LAMC |
| Underlying base ordinance | Builds on the original 1999 Adaptive Reuse Ordinance and legacy Downtown subareas | Builds on the 2003 expansion areas and the current Citywide ARO |
| Typical building stock | Historic and mid-century office and commercial towers concentrated in the Financial District, Historic Core, and South Park | More varied, commercial corridors, mixed-use nodes, and higher-density lots citywide |
| Approval procedures referenced | Section 13B.2 series of the new Zoning Code | Section 13B.2 series of the new Zoning Code |
How the Citywide Adaptive Reuse Ordinance (No. 188,793) Fits In
Separate from the 9.4.5/9.4.6 split in Chapter 1A, the Los Angeles City Council adopted a Citywide Adaptive Reuse Ordinance (No. 188,793) in December 2025, effective February 1, 2026. This ordinance operates on top of the existing framework and independently expanded eligibility citywide, lowering the minimum building age from the original 1974 construction cutoff to a rolling 15-year (or 5-year, with CUP approval) threshold, opening eligibility beyond the legacy Downtown and expansion subareas, and adding design incentives like unlimited density for affordable Unified projects and a rooftop story exempt from height and floor-area limits.
In practice, this means a Downtown office building may have its eligibility and design flexibility shaped by both the geography-based 9.4.5 rules and the broader, more permissive Citywide ARO provisions simultaneously. This is a case where the two frameworks reinforce rather than conflict with each other, but it’s exactly the kind of overlap that should be confirmed with LA City Planning rather than assumed from either ordinance in isolation.
Which Program Applies If My Building Sits Near the Downtown Boundary?
Community Plan Area boundaries don’t always align with intuitive neighborhood lines, and a parcel a block or two outside what most people consider “Downtown” can fall on either side of the 9.4.5/9.4.6 split. Don’t rely on a broker’s characterization of the neighborhood. Confirm boundary placement through:
- LA City Planning’s Zoning Search tool or ZIMAS, which will show the applicable Community Plan Area for a specific parcel
- LA City Planning’s Urban Design team (planning.urbandesign@lacity.org), which handles adaptive reuse-specific questions directly
- A pre-application meeting or Zoning Review appointment, if the boundary determination has material financial consequences for the deal
The practical difference between 9.4.5 and 9.4.6 eligibility is usually smaller than the difference between qualifying by right versus needing a Conditional Use Permit, so a boundary determination is worth getting in writing before it affects your underwriting.
FAQ
Does it matter whether my building falls under 9.4.5 or 9.4.6?
It affects which section of the code applies and, in some cases, the underlying subarea history and design guidance available, but the core mechanics, age thresholds, approval tracks, incentives, are similar under both, especially since the 2026 Citywide ARO expansion.
Is the Citywide Adaptive Reuse Ordinance the same thing as LAMC 9.4.6?
No. LAMC 9.4.6 is the Chapter 1A zoning section for the Citywide Adaptive Reuse Program. The Citywide Adaptive Reuse Ordinance (No. 188,793) is a separate, more recent measure that broadened eligibility criteria across the whole city, including areas governed by both 9.4.5 and 9.4.6.
Can a building governed by 9.4.5 also use incentives from the Citywide ARO?
Generally yes, the Citywide ARO’s expanded eligibility and design incentives apply on top of the geography-based program, but confirm applicability for your specific parcel with LA City Planning.
Related reading: Is My Downtown LA Office Building Eligible for Adaptive Reuse? → ·
How to Get a By-Right Adaptive Reuse Permit from LADBS →
Community Plan Area boundaries and applicable zoning sections should always be confirmed directly with LA City Planning for a specific parcel before making acquisition or design decisions.
Back to Office-to-Residential Conversion in Downtown LA: The Complete Feasibility Guide →
