Overview
Code type
euclidean
Naming convention
density-encoded
Euclidean base: R-1/R-2/R-3/R-4 residential ladder where number indexes intensity (R-4 highest). C-1/C-2/C-3 commercial + GO (General Office) + NC/CC special commercial. Overlays attached via slash prefix (/WR, /WQ, /TD, /ND, /SR, /PD, /CAS). Special Area Zones (S-H Historic, S-CN Chase Node, S-W Whiteaker etc.) are separate zone category, not overlays. No form-based transect.
Worth knowing
- Ord 20716 replaces Ord 20667: after LUBA remand of the 2022 middle-housing package, the City re-adopted middle-housing code via Ord 20716 on 2024-11-25, effective 2025-01-02. Research cut dates earlier than 2025-01-02 will reference the now-superseded 20667.
- Eugene-Springfield share a joint UGB via the Metro Plan — UGB expansion procedure involves both cities + Lane County, adding process cost not present in single-jurisdiction Oregon cities.
- Commercial FAR is unregulated except within /ND Nodal Development overlay (applies to C-2) — feasibility modeling for Eugene commercial sites must check /ND mapping before assuming FAR cap.
+ 4 more in Quirks & notes
Districts
res_mf 3com 3ind 3res_sf 1off 1ag 1spec 1
| Code | Name | Category | Min lot | Height | Coverage | FAR | Du/ac | Parking | Setbacks F/S/R |
|---|---|---|---|---|---|---|---|---|---|
| R-1 | Low-Density Residential | res_sf | 4,500 sf[2] | 37 ft[3] | 0.5[4] | — | —[5] | 1[6] | — / 5[1] / — |
| R-2 | Medium-Density Residential | res_mf | — | — | — | — | — | — | — / — / — |
| R-3 | Limited High-Density Residential | res_mf | — | — | — | — | — | — | — / — / — |
| R-4 | High-Density Residential | res_mf | — | — | — | — | — | — | — / — / — |
| C-1 | Neighborhood Commercial | com | — | — | — | —[7] | — | — | — / — / — |
| C-2 | Community Commercial | com | — | 65 ft[8] | — | —[9] | — | — | — / — / — |
| C-3 | Major Commercial | com | — | — | — | — | — | — | — / — / — |
| GO | General Office | off | — | [{'variant': 'within 50 ft of abutting AG, R-1, or R-2 zone', 'value': 35, 'citation': '§9.2170', 'note': '35 ft stepback ceiling'}, {'variant': 'otherwise', 'value': 50, 'citation': '§9.2170'}] ft[10] | — | — | — | — | — / — / — |
| I-1 | Light-Medium Industrial | ind | — | — | — | — | — | — | — / — / — |
| I-2 | General Industrial | ind | — | — | — | — | — | — | — / — / — |
| I-3 | Heavy Industrial | ind | — | — | — | — | — | — | — / — / — |
| AG | Agricultural | ag | — | — | — | — | — | — | — / — / — |
| PL | Public Land | spec | — | — | — | — | — | — | — / — / — |
Confidence: confirmed partial under review not found
Overlays
/WR
Water Resources Conservation Overlay Zone
ENVProperties within mapped riparian corridors, wetlands, and water-related wildlife habitat on Eugene's adopted Statewide Goal 5 inventory — includes Willamette River, McKenzie River, Amazon Creek, and tributary streams
| conservation_area_components | Riparian setback + wetland boundary + wildlife habitat per §9.4920 |
|---|---|
| permitted_use_restriction | §9.4930 — prohibited uses within conservation area; limited exceptions |
| goal_5_basis | Oregon Statewide Planning Goal 5 — Natural Resources |
| map_correction_path | §9.4960 — map-error / zone-error correction procedure |
| interaction_note | Removes land from buildable area; reduces effective lot coverage / FAR on affected parcels |
/WQ
Water Quality Overlay Zone
ENVProperties within the /WQ Management Area as mapped by the city; implements federal/state water-quality requirements over shallow aquifer / wellhead protection zones
| management_area_defined_by | §9.4778 (mapped) |
|---|---|
| development_standards | §9.4790 — restrictions on hazardous-material storage, impervious surface, stormwater handling |
| federal_state_basis | Safe Drinking Water Act + Oregon DEQ wellhead rules |
/TD
Transit Oriented Development Overlay Zone
TODDowntown Eugene — /TD is mapped only within the downtown area, with a core sub-district and outer area
| minimum_far_core | 2[11] |
|---|---|
| minimum_far_outer | 0.65[12] |
| intent | Mixed land uses, enhanced transit + pedestrian activity |
| relation_to_hb3414 | Eugene /TD pre-dates HB 3414 (2023); HB 3414 ministerial adjustment layered on top |
/ND
Nodal Development Overlay Zone
TODNodal development areas mapped per TransPlan; applied to C-2 and mixed-use nodes to concentrate activity around transit
| activates_commercial_far | True |
|---|---|
| base_commercial_far_without_nd | unregulated |
| purpose | Compact mixed-use nodes supporting transit service |
| layered_with | /TD in some downtown-adjacent areas |
/SR
Site Review Overlay Zone
SPECMapped across select properties where city requires heightened discretionary review of development proposals
| review_type | Planning-Director decision with public notice |
|---|---|
| added_review_topics | Design, siting, buffering, transitions to adjacent uses |
| scope | Applied to sensitive-transition parcels |
/PD
Planned Unit Development Overlay Zone
PDApplied on approval of a Planned Unit Development application — not prezoned; attaches on approval
| review_type | Public hearing, discretionary, with added-requirements regime |
|---|---|
| flexibility | Allows dimensional and use flexibility in exchange for master-planned design |
| scope | Larger-parcel or master-planned developments |
/CAS
Commercial Airport Safety Overlay Zone
APProperties within FAA Part 77 imaginary surfaces for Mahlon Sweet Field (EUG/KEUG) — airport ~3.7 nm NW of downtown; horizontal/conical/approach/transitional surfaces per Part 77
| obstruction_prevention | Prohibits or conditions structures that would constitute hazards to air navigation |
|---|---|
| faa_part_77_linkage | True |
| agency_of_reference | FAA + Mahlon Sweet Field (municipal airport) |
S-H (and S-JW Jefferson-Westside historic, S-CB capitol-block, etc.)
Historic Preservation — Special Area Zone family
HPMapped historic districts — downtown-adjacent residential and commercial historic-contributing districts; individual landmarks regulated separately under Historic Review
| design_review_required | True |
|---|---|
| demolition_review_required | True |
| applies_to | Listed historic districts via Special Area Zone mapping |
| not_an_overlay_technically | Eugene implements historic preservation primarily via Special Area Zones (S-*) rather than a slash-overlay; effect is equivalent |
FEMA-SFHA
Floodplain — FEMA SFHA (regulated via building code + /WR where coincident)
FPFEMA mapped Special Flood Hazard Area — Willamette River + McKenzie River + Amazon Creek corridors
| bfe_plus_freeboard | Per state-adopted FEMA NFIP minimums + Oregon Building Code elevation requirements |
|---|---|
| substantial_improvement_threshold | 0.5 |
| substantial_improvement_note | NFIP default 50% of pre-improvement market value unless city has adopted stricter local standard |
| floodway_restriction | No-rise certification required per NFIP |
| overlap_with_wr | Portions of SFHA also within /WR conservation area — /WR stricter controls where overlap |
State preemptions
OR HB 2001 — Middle Housing (Fourplex Tier)applies
Qualifying condition
Eugene population 176,000 (Census PEP 2024 vintage) ≥ 25,000 threshold for fourplex tier; Eugene is outside Portland Metro service district. Triplex/fourplex/townhome/cottage-cluster by-right triggered.
Source
Census PEP 2024 + DLCD implementation record
Effect
Duplex, triplex, fourplex, townhome, cottage cluster permitted by-right in all SF residential zones. Parking capped at 1.0/unit for middle housing. Local implementation via Ord 20667 (2022-05-24, superseded) and Ord 20716 (effective 2025-01-02) after LUBA remand.
Qualifying condition
Eugene population 176,000 (2024) ≥ 10,000 and applies to projects including housing. Ministerial adjustment process (up to 10% deviation from clear-and-objective standards) required.
Source
Census PEP 2024; ORS 197.524
Effect
Housing projects may request ≤10% deviation from FAR / height / setbacks via ministerial path.
Qualifying condition
Applies on any Eugene parcel owned by a religious organization or public-benefit nonprofit when project is ≥50% affordable at ≤80% AMI. Not dependent on population threshold (statewide).
Source
ORS 197.727–197.728
Effect
On qualifying parcels, affordable multifamily allowed regardless of base zoning; density floor = highest-density residential zone (R-4).
OR ADU By-Right (ORS 197.312)applies
Qualifying condition
Eugene population ≥ 2,500 and city permits detached single-family dwellings. ADUs by-right in all zones allowing SF; no owner-occupancy; parking waived near transit.
Source
ORS 197.312(5); SB 1051 (2017)
Effect
ADU permitted by-right in R-1/R-2/R-3/R-4. Local implementation Ord 20659 (ADU code).
Qualifying condition
Eugene population 176,000 ≥ 10,000. Must conduct Housing Capacity Analysis and adopt Housing Production Strategy on DLCD schedule.
Source
ORS 197.290–197.296; OAR 660-008
Effect
Indirect pressure — HCA/HPS can trigger capacity-expansion obligations (UGB, upzones).
Qualifying condition
Eugene population 176,000 ≥ 25,000 AND Eugene is outside Portland Metro. The Metro-only CFA tier in the state overlay (inside_portland_metro=true) does not apply; Eugene falls under the parallel Non-Metro ≥25,000 OAR 660-012 track (Transportation Planning Rule amendments). Parking-mandate reduction + housing production accountability apply; CFA minimum-density/height floors are not self-executing in Eugene.
Source
OAR 660-012 amendments (2022 CFEC package) + SB 1537 (2024)
Effect
Off-street parking mandates reduced statewide per 2022 CFEC TPR amendments (already reflected in local parking standards). Full CFA designation + density floor is Metro-only.
OR Statewide Planning Goal 10 — Housingapplies
Qualifying condition
Applies always to all Oregon cities inside a UGB. Eugene has a legally-defined UGB (shared with Springfield via Metro Plan).
Source
Statewide Planning Goal 10; ORS 197.303
Effect
Comprehensive plan must provide for needed housing across all income/type categories; 20-year buildable lands supply.
OR Urban Growth Boundary Frameworkapplies
Qualifying condition
Eugene is inside a UGB (Eugene-Springfield Metro Plan UGB). Expansions follow ORS 197.296/197.298 + Goal 14; SB 1537 streamlined housing-focused expansion pathway available.
Source
ORS 197.296–197.299; Goal 14
Effect
UGB expansions state-prescribed; cannot annex/rezone outside UGB except per state procedures.
Adopted building codes
2024 codes eff. April 2026
Click a code label to open its state-by-state adoption atlas.
Amendment history
| Date | Kind | Citation |
|---|---|---|
| 2026-04-19 | retrieved at | |
| 2025-01-02 | amendment effective | Ord 20716 middle-housing 2nd-remand ordinance, effective 2025-01-02 |
| 2022-05-24 | adoption | Ord 20667 HB 2001 middle-housing package (superseded by Ord 20716) |
Quirks & notes
- Ord 20716 replaces Ord 20667: after LUBA remand of the 2022 middle-housing package, the City re-adopted middle-housing code via Ord 20716 on 2024-11-25, effective 2025-01-02. Research cut dates earlier than 2025-01-02 will reference the now-superseded 20667.
- Eugene-Springfield share a joint UGB via the Metro Plan — UGB expansion procedure involves both cities + Lane County, adding process cost not present in single-jurisdiction Oregon cities.
- Commercial FAR is unregulated except within /ND Nodal Development overlay (applies to C-2) — feasibility modeling for Eugene commercial sites must check /ND mapping before assuming FAR cap.
- Historic preservation implemented via Special Area Zones (S-H, S-JW Jefferson-Westside, S-CB, etc.) rather than a slash-prefixed overlay — classification difference from most Oregon cities where historic is a traditional overlay.
- /TD overlay mandates MINIMUM FAR (2.0 core / 0.65 outer) in downtown — this is a floor, not a ceiling; Eugene is one of the few Oregon cities imposing a minimum-FAR standard outside Metro CFAs.
- University of Oregon campus is regulated via institutional Special Area Zones + campus master plan, not via a slash-overlay — creates a zoning regime distinct from surrounding R-2/R-3 neighborhoods.
- eugene.municipal.codes is 403-blocked to WebFetch (identical behavior to the municipal.codes / amlegal blocker domains per KNOWN_BLOCKERS). Section anchors (§9.2750, §9.4530, §9.4920) captured from Google Search snippets per the one-attempt discipline; exact dimensional tables could not be fully transcribed in this run and are flagged `partial` with paired what_is_confirmed / what_is_missing.
Formulas
Definitions
- height
- Measured from finished grade to highest point of roof or parapet per EC 9.8000 definitions
- far
- Total floor area of all buildings divided by total lot area (applied only in /TD and /ND overlays for commercial)
- du_ac
- Minimum / maximum dwellings per acre as applicable in residential zones
Massing explorer
Interactive 3D comparison across every district. Drag to orbit, scroll to zoom, use the slider to walk districts, and toggle applicable overlays in the right-side panel.
Sort by
Max height
— ft
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Floor area ratio
—
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Lot coverage
—%
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Setbacks (F / S / R)
— ft
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Parking
— /unit
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Max density
— du/ac
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Min lot size
— sf
——
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| District | Category | Height | FAR | Coverage | Setbacks | Parking | Density | Min lot | Overlays |
|---|
Sources & references
Citations
- [1] §9.2750
- [2] §9.2750
- [3] §9.2750
- [4] §9.2750
- [5] i
- [6] i
- [7] §9.2170
- [8] §9.2170
- [9] §9.2170
- [10] §9.2170
- [11] §9.4530
- [12] §9.4530
Research status
Publication gates
| primary url present | passed | code_source = https://eugene.municipal.codes/EC/9 (city-hosted, non-aggregator) |
|---|---|---|
| no aggregator cited | passed | no zoneomics/steadily/siteplanguide/propwire/zonara/unzoned references in record |
| confidence tags full form | passed | 11/11 confirmed KPIs carry §-citation (R-1 min_lot/height/coverage/side-setback at §9.2750, C-2 height + FAR-not-regulated at §9.2170, GO height array at §9.2170, /WR §9.4920, /WQ §9.4778, /TD §9.4530, /CAS §9.4120, /PD 09_PDZone) |
| overlays have parameters trigger confidence | passed | all 10 overlays have name, code, type, ordinance, trigger, params (non-empty), base_interaction, confidence, source_jurisdiction |
| preempt section city specific | passed | 8 OR preemption laws evaluated with city-specific qualifying_condition_checked naming Eugene population 176,000 (2024), outside-Portland-Metro status, and UGB membership |
Data quality
48%completeness11 confirmed22 partial6 inferred
Documented gaps
- Exact R-2 / R-3 / R-4 dimensional values in Table 9.2750 (min lot, height, coverage, du/ac, setbacks) — 403 blocked
- C-1 / C-3 / I-1 / I-2 / I-3 dimensional values in §9.2170 — 403 blocked
- Front and rear setback values for R-1 (interior/side 5 ft confirmed; front/rear not in snippet)
- Exact /WR riparian setback widths by stream class
- Eugene-specific floodplain freeboard amount above FEMA BFE
- Full Special Area Zone roster (S-H, S-JW, S-CB, S-CN Chase Node, S-W Whiteaker confirmed; others likely)
- Whether Ord 20716's 2025 middle-housing package changed base zone setbacks/coverage for R-1 vs. 20667
Known issues
freshness:volatiledata:gaps-present
Other cities in this state
Nearest-alphabetical profiles. Click through to compare zoning patterns side-by-side.