Policy & Planning
Tucson’s Middle Housing Plan: How the City Is Expanding Opportunity and Reshaping Neighborhoods
A Long-Overdue Shift in Housing Policy
The new ordinance represents a comprehensive update to Tucson’s residential zoning framework. It reintroduces housing types that historically existed in American neighborhoods but largely disappeared over the past 60 years:
-
Duplexes
2 units on one property
-
Triplexes
3 units on one property
-
Fourplexes
4 units on one property
-
Townhomes
Attached row-style homes
What this solves: These housing types fill the “missing middle” — the gap between single-family homes and large apartment developments. By allowing these options again, Tucson aims to create more flexible, attainable housing choices across a wider range of neighborhoods.
This shift matters because it acknowledges a reality: families, workers, and seniors have diverse housing needs that single-family zoning simply couldn’t serve.
A Year-Long Community Conversation
This ordinance didn’t emerge from a vacuum. It came from an extensive, citywide engagement process throughout 2025 — one that included public meetings, planning commission hearings, and community feedback at every stage.
APRIL 2025
Mayor and Council Study Session
MAY 2025
Initial public outreach and engagement
SUMMER 2025
Ongoing study sessions and code analysis
AUGUST 2025
Public review of proposed code
SEPTEMBER 2025
Planning Commission Study Session
NOVEMBER 2025
Planning Commission Public Hearing
DECEMBER 16, 2025
Mayor and Council adoption
Key finding: More than 75% of participants in public meetings supported a citywide middle housing approach. Key themes centered on neighborhood fit, lot sizes, design standards, and preserving historic areas. This overwhelming support shaped a policy designed to balance growth with community character.
Going Beyond State Requirements
Arizona’s House Bill 2721 required cities with populations over 75,000 to allow middle housing within one mile of their Central Business District. Tucson chose to go further.
Tucson's Broader Strategy
Instead of limiting the ordinance to a specific radius around downtown, the city expanded middle housing permissions across most residential areas citywide — excluding only Rural Residential Zones.
Why? Because Tucson’s housing shortage isn’t isolated to one area — it’s citywide. Workers commute long distances. Renters struggle with affordability. Seniors lack downsizing options. Young families face bidding wars. A citywide approach acknowledges these realities.
Addressing a Real Housing Shortage
Tucson’s housing challenges are real, measurable, and ongoing:
-
27,000+
Housing Unit Shortage
-
Widespread
Affordability Challenges
-
Long
Commute Distances
-
Limited
Downsizing Options for Seniors
By increasing housing density in a controlled and intentional way, the ordinance aims to improve supply, stabilize costs, and create more accessible living options across income levels and life stages.
How This Connects to Tucson's Broader Goals
The Middle Housing Ordinance doesn’t exist in isolation. It aligns with several major city initiatives, all working toward a more sustainable, equitable Tucson:
Housing Affordability Strategy for Tucson (HAST)
Focuses on increasing supply as a key driver of affordability.
P-CHIP (Prosperity Initiative)
Supports equitable housing access and economic mobility for all residents.
Tucson Resilient Together Climate Plan
Encourages infill development to reduce urban sprawl and infrastructure strain.
Plan Tucson 2025 General Plan
Promotes housing diversity, equitable development, and sustainable growth.
Together, these frameworks position middle housing as part of a larger strategy — not a standalone policy. It’s part of Tucson’s vision for sustainable, equitable growth.
What Builders and Property Owners Need to Know
For property owners and small-scale developers, the ordinance removes many barriers that previously made middle housing difficult to build:
KEY ADVANTAGES
- Use Residential Building Code (IRC) instead of commercial codes for 2–4 unit projects
- Reduced complexity in permitting
- Administrative approval processes for land division
- Lower overall development costs
STILL REQUIRED
- One-hour fire-rated separation between units
- Independent egress (separate exits for each unit)
- Compliance with design standards
- Safety requirements and inspections
These changes make it more feasible for individuals — not just large developers — to participate in creating new housing. A property owner with a larger lot, or someone interested in ADUs, now has a clearer path forward.
What This Means for Neighborhoods
As middle housing begins to take shape, neighborhoods will gradually evolve. Here’s what to expect:
- Increased housing density in established areas
- More diverse housing options within the same neighborhood
- Opportunities for multigenerational living and family flexibility
- Greater accessibility for first-time buyers and renters
- More vibrant, walkable neighborhoods with additional residents
Important: Design standards and preservation zones remain in place to maintain neighborhood character where needed. Not every neighborhood will transform overnight — changes will be gradual and subject to community standards.
What Comes Next
The ordinance adoption marks the beginning. Throughout 2026, Tucson will rollout support tools and infrastructure:
Middle Housing Land Division Process
Streamlined pathways for subdividing property into 2–4 units
Model Plan Library
Pre-approved designs to accelerate approvals and reduce costs
Applicant Training Sessions
Education for property owners on the new process
Oversight & Refinement
Planning and Development Services monitoring quality and compliance
These tools aim to support consistent, well-designed development while reducing friction for property owners and builders.
A Shift Toward Proactive Planning
Tucson’s approach signals a move away from reactive housing decisions toward a more strategic, long-term vision. The goals are clear:
-
Expand housing opportunities
-
Support affordability across income levels
-
Encourage thoughtful, sustainable development
-
Create flexibility for future generations
What This Means for You
Whether you are:
- A homeowner considering adding value to your property
- A buyer looking for more flexible, attainable housing options
- An investor exploring small-scale development opportunities
- A renter seeking more stable, accessible pricing
Understanding how this ordinance applies to your specific situation is key. The opportunities are real — but so is the need for informed strategy.
Explore related resources:
Frequently Asked Questions
What exactly are 'missing middle' housing types?
Middle housing refers to residential building types that fit between single-family homes and large apartment complexes. In Tucson’s new ordinance, this includes duplexes (2 units), triplexes (3 units), fourplexes (4 units), and townhomes. These housing types historically existed in American neighborhoods but largely disappeared in the second half of the 20th century due to zoning restrictions. They’re being revived because they provide attainable, flexible housing options while maintaining a residential neighborhood feel.
Where in Tucson can middle housing be built?
The ordinance applies to most residential zones across Tucson. It excludes only Rural Residential Zones. This citywide approach goes beyond Arizona’s state requirement (HB 2721), which only mandated middle housing within one mile of the Central Business District. Tucson’s broader strategy reflects the reality that housing shortages exist throughout the city, not just downtown.
Does this mean my neighborhood will completely change?
Middle housing will introduce more diversity, but neighborhoods won’t transform overnight. Development will be gradual and subject to design standards. Historic preservation zones remain protected, and design guidelines help ensure new middle housing respects neighborhood character. Think of it as evolution, not revolution — neighborhoods will have more housing variety, but not a dramatic shift in overall aesthetic or density.
What does this mean for property values?
The long-term impact is likely positive. Increased housing supply typically stabilizes and moderates prices over time. More housing options can attract more diverse buyers and renters, potentially increasing demand for surrounding properties. For property owners, middle housing creates new opportunities — you might be able to add units to your property or transition to a duplex or triplex for rental income. Each situation is unique and worth evaluating with a local real estate expert.
Can I add a duplex or extra units to my existing home?
Potentially, yes — but it depends on your specific property, zoning, lot size, and current building code. The ordinance removes many barriers that previously made this difficult, including allowing residential building codes instead of commercial codes for 2–4 unit projects. If you’re considering this, a detailed evaluation of your property and local requirements is essential. This is where professional guidance makes a real difference.
How does this ordinance help with Tucson's affordability crisis?
By increasing housing supply, middle housing addresses a key driver of affordability — scarcity. When more units are available, prices stabilize and become more accessible. Additionally, smaller unit types (duplexes, townhomes) often cost less to build and maintain than large apartment complexes, which can translate to more attainable pricing for renters and buyers. The ordinance also aligns with Tucson’s broader affordability strategy, which emphasizes supply as critical to making housing more accessible.
Talk To A Local Expert
Ready to Buy or Sell in Tucson?
Get personalized guidance from Jennie Uhlmann — Tucson's top-rated real estate agent with 100+ five-star reviews.
ARCHIVE
Ready to Explore What Middle Housing Means for Your Property?
Jennie can help you evaluate opportunities — whether you’re considering adding units, buying a middle housing property, or understanding how this affects your neighborhood. Schedule a consultation to discuss strategy tailored to your goals.
No pressure. No obligation. Just a conversation.