Mixed-Use Commercial Buildings: What to Know

If you’ve spent any time driving through Spokane’s revitalized districts—Kendall Yards, the Sprague Union neighborhood, or even pockets of the Valley—you’ve probably noticed a common theme: buildings that blend retail, office, and residential space under one roof. These mixed-use commercial buildings are reshaping how we live and work, and they’re quickly becoming one of the smartest investments for property owners looking to maximize value on well-located land.

At Stimson Contracting, we love mixed-use projects because they challenge us to think holistically—about traffic flow, parking, sound control, and how a space feels at 8 a.m. on a Tuesday and 10 p.m. on a Saturday. If you’re curious about adding a mixed-use building to your portfolio—or converting an existing structure—here’s what you need to know before you get started.

Table of Contents

1. What Exactly Is a Mixed-Use Building?

2. Why Mixed-Use Is Growing in Spokane

3. Common Mixed-Use Configurations

4. Zoning and Code Considerations

5. Design Challenges (and Solutions)

6. Parking, Access, and Traffic Flow

7. Sound, Smell, and Vibration Control

8. Financing and ROI Potential

9. Choosing the Right Construction Partner

10. Conclusion: Build for the Way Spokane Lives Today

1. What Exactly Is a Mixed-Use Building?

A mixed-use commercial building combines two or more revenue-generating uses—retail, office, hospitality, or residential—within a single structure or cohesive development. The goal is to:

• Increase property value through diversified income streams

• Create vibrant, 24/7 environments that serve multiple user groups

• Use land more efficiently in growing urban and suburban areas

2. Why Mixed-Use Is Growing in Spokane

Several trends fuel Spokane’s mixed-use boom:

• Population growth in the metro area

• A push for walkable neighborhoods with live-work-play convenience

• Rising land prices, making single-use developments less feasible

• City initiatives that encourage infill and higher density

For property owners, that often translates to faster lease-ups and stronger long-term returns.

3. Common Mixed-Use Configurations

1. Vertical mixed-use: Retail at street level, offices on the middle floors, and apartments or condos above.

2. Horizontal mixed-use (campus style): Distinct buildings—one retail, one residential, one office—on the same parcel with shared parking and amenities.

3. Adaptive reuse: Converting an older warehouse or historic structure into a blend of loft apartments and ground-floor cafes.

Each approach has its own code, financing, and design implications.

4. Zoning and Code Considerations

Mixed-use projects trigger multiple code layers:

• Land-use zoning: Verify the site allows the specific mix you want.

• IBC / IEBC cross-occupancy rules: E-type (retail) and R-type (residential) occupancies require rated separations.

• Parking ratios: Retail and residential have different minimums—shared-use studies can sometimes reduce stalls.

• ADA and Fair Housing: Residential levels must meet different accessibility standards than commercial floors.

We coordinate with Spokane County and city officials early to keep approvals smooth.

5. Design Challenges (and Solutions)

• Vertical stacking: Mechanical shafts and plumbing chases must serve each use without interfering with others.

• Separate entrances: Residents don’t want to enter through a busy café at 6 a.m. We design secure, private lobbies.

• Amenity location: Rooftop decks or shared gyms boost residential rents but need structural capacity planned from day one.

6. Parking, Access, and Traffic Flow

A solid parking plan can make or break a mixed-use deal:

• Shared stalls: Residents need them overnight; retail uses them by day.

• Structured parking: More upfront cost but higher land efficiency.

• EV chargers and bike storage: Increasingly expected, especially near Gonzaga or downtown.

7. Sound, Smell, and Vibration Control

Nothing ruins an apartment faster than the smell of fries at midnight. We mitigate issues with:

• Rated floor/ceiling assemblies and wall partitions

• Dedicated grease ducts for restaurants

• Acoustic mats or floating floors above louder tenants like fitness studios

8. Financing and ROI Potential

Mixed-use often qualifies for:

• Multiple loan types (commercial + multifamily)

• Tax-increment financing in redevelopment zones

• New Markets or Historic Tax Credits for adaptive reuse

• Higher appraised value because of diversified NOI

Good pro forma modeling is essential; we team with lenders who understand these projects.

9. Choosing the Right Construction Partner

Look for a builder who:

• Has experience with multi-occupancy codes

• Understands Spokane’s permit process and design review boards

• Can phase construction so retailers open while upper floors finish

• Communicates clearly with owners, architects, and city officials

That’s exactly the role we play on mixed-use builds across the Inland Northwest.

10. Conclusion: Build for the Way Spokane Lives Today

Mixed-use commercial buildings aren’t just a trend—they’re the future of efficient, livable communities in our region. By blending compatible uses, you create a property that stays busy, profitable, and relevant for decades.

At Stimson Contracting, we guide developers and investors through every step, from site selection to ribbon-cutting. If you’re ready to explore a mixed-use project—new build or adaptive reuse—let’s get started.