Board of Supervisors, December 2, 2025

Approves Subdivision plat administrative approval (ordinance 2025-30), 5-0

December 2, 20256h 35m43,480 words

144 mentionszoningapprovedannexation comprehensive plan rezoningindustrialland usepublic hearingsetbackhistoric preservationresidentialdensityadu short term rentalsubdivisionplat variancePima County, AZ

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What happened

Pima County's Board of Supervisors approved ordinance 2025-27, a zoning code text amendment authorizing accessory dwelling units (ADUs) statewide-mandated by HB 2928, on a unanimous vote after adopting two Supervisor Hines amendments (removing the site-built requirement U.10 on a…

Meeting key facts

Jurisdiction: Pima County, AZ
Governing body: Final authority
Date: December 2, 2025
Decisions: 15 zoning decisions
Outcome: Approved, 5-0

Projects in this meeting (1)

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Subdivision plat administrative approval

Approved 5-0

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Free sample: decision 1 of 15

ADU zoning code text amendment (ordinance 2025-27)

Zoning code text amendment to align Pima County code with state law (HB 2928) requiring counties to allow accessory dwelling units. Adopted with Supervisor Hines' two amendments and the amendments in the county administrator's Nov 10 memo (owner-occupancy for short-term rental ADUs, side/rear setbacks, 5-foot separation, HDZ/grading regulations still apply). Third ADU on parcels one acre and larger must be restricted affordable (up to 80% AMI). Final vote unanimous.

owner must live on site when a short-term rental ADU is used
third detached ADU on parcels 1 acre or larger must be restricted affordable
HDZ grading, scenic route, historic preservation, buffer overlay zone requirements still apply

The other decisions are listed below by title. The full write-up, verbatim conditions, and the audio at each vote are in Pro.

Meeting Summary

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Key Decisions (15)

Approved

ADU zoning code text amendment (ordinance 2025-27)

Vote: unanimousConditions attached

Amended

Amendment to ADU ordinance - remove U.10 site-built requirement

Vote: 3-2

Amended

Amendment to ADU ordinance - increase attached ADU maximum size

Vote: 3-2

Continued

Project Blue (Amazon data center)

Industrial

Copper World copper mine

Industrial

El Camino Affordable Housing Project

Residential

Tucson House preservation

Residential

Market Signals (5)

Infrastructure

Data center water and power demand is a major flashpoint…

Housing Demand

Pima County reports a 20% gap between supply and demand…

Commercial Demand

Copper World mine promises ~$8B private investment, 400 direct/3,000 indirect…

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Who Spoke (28)

ChairCommissioner · 4Staff · 4ClerkAttorneyPublic · 6

On the record: the chair, 4 commissioners, 4 staff members, the clerk, an attorney, and 6 members of the public.

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Agenda scorecard

Our pre-meeting forecast, graded against the recorded vote

ZoneWire called 3 of 3 land-use forecasts on this agenda.

UNFINISHED BUSINESS (11/18/25) Hearing - Zoning Code Text Amendment P25TA00002, ACCESSORY… plan amendment

Case File ID 19501

ApprovedZoneWire called it

freeApprovedmoved by Rex Scott3 conditions of approval

3 conditions, the audio at the vote, and this case's history

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Hearing - Zoning Code Text Amendment P25TA00003, SUBDIVISION APPROVAL An Ordinance of the…

Case File ID 19568

Approved 5-0ZoneWire called it

freeApproved 5-0moved by Rex Scott

Follow rezonings in this county, free

W. Mars Street rezone

District District 3Case File ID 19569

ApprovedZoneWire called it

freeApprovedmoved by Rex Allen

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Final Plat With Assurances P23FP00018, Rocking K South Neighborhood 2, Phase 3A, Lots… subdivision

District District 4Case File ID 19570

No vote recorded

Final Plat With Assurances P25FP00018, Mars Landing, Lots 1-30 and Common Area "A", "B-1"… subdivision

District District 3Case File ID 19571

No vote recorded

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