Spokane Shop Construction: Local Regulations to Know

If you’re planning to build a shop in Spokane—whether it’s a workshop, hobby space, garage, or hybrid pole building—you need more than just a good design and a builder you trust. You also need to understand the local regulations that govern how, where, and what you can build.

At Stimson Contracting, we’ve been building shops across Spokane County for decades, and one of the most important parts of a successful build is starting with compliance. We’ve seen too many projects hit unexpected delays or budget overruns simply because a code requirement or zoning issue was overlooked.

In this post, I’ll walk you through the key local rules, permits, and planning considerations you’ll need to know before breaking ground on your Spokane shop. Whether you're building in the city limits or out in the county, this guide will help you avoid surprises—and build with confidence.

Table of Contents

1. Determine Your Zoning Classification

2. Understand Building Permit Requirements

3. Snow Load and Wind Load Standards

4. Setback and Lot Coverage Rules

5. Utility Access and Easement Considerations

6. Site Access and Road Use

7. Fire Safety and Code Compliance

8. Drainage, Grading, and Erosion Control

9. Septic Systems and Water Access

10. Inspections and Final Approvals

11. Why Local Experience Matters

12. Start Your Spokane Shop Project With Confidence

1. Determine Your Zoning Classification

Before anything else, you need to know how your property is zoned. Spokane County has multiple zoning designations (AG, RA, Rural Conservation, Urban Reserve, etc.), each with its own guidelines on what you’re allowed to build.

Zoning impacts:

• Whether your shop can include living space

• Size and height restrictions

• Commercial or home business use

• Number of accessory structures allowed

We always begin our projects with a zoning check to ensure your dream shop aligns with your property’s legal parameters.

2. Understand Building Permit Requirements

In Spokane County, a building permit is required for most shops, even if they’re non-habitable. Permit requirements include:

• Site plan

• Engineered drawings

• Truss specs

• Energy code documentation (for heated or insulated buildings)

We submit and manage permit applications on behalf of our clients, making sure everything is properly documented and submitted for approval the first time.

3. Snow Load and Wind Load Standards

Spokane’s weather means you can’t build just anything—you need to build something that holds up to the elements.

Current codes require:

• Snow load capacity of 30–70 pounds per square foot depending on elevation

• Wind load design for gusts up to 110 mph or more in some areas

• Engineered trusses and bracing systems

We design every shop to meet or exceed these requirements for long-term durability and code compliance.

4. Setback and Lot Coverage Rules

Setbacks determine how far your shop must be from property lines, roads, easements, and other structures. These vary based on zoning and location.

Common setbacks include:

• 5–25 feet from property lines

• Greater distances for structures over 1,000 square feet

• Special considerations near wetlands or floodplains

Lot coverage rules may also limit how much total square footage you can build on your land. We help calculate and plan around these rules during the design phase.

5. Utility Access and Easement Considerations

If your shop will include power, plumbing, or heating, you’ll need to plan for utility access and placement.

Also, if your property includes utility easements, you can’t build directly over them—even if you own the land. We work with utility companies and use property surveys to avoid conflicts and delays.

6. Site Access and Road Use

Access to your build site is more than just convenience—it’s a legal consideration.

If your property is accessed via a shared driveway, private road, or easement, Spokane County may require proof of legal access for permitting purposes.

Additionally, heavy equipment and material deliveries require clear access and proper turnaround space, which we evaluate during our site visits.

7. Fire Safety and Code Compliance

If your shop includes a living space or is over a certain square footage, Spokane County may apply fire safety regulations such as:

• Fire separation walls between spaces

• Smoke and CO detectors

• Fire-rated doors

• Emergency egress windows

These codes are especially relevant for barndominiums and shop-homes. We stay up to date on fire code changes to ensure compliance from the start.

8. Drainage, Grading, and Erosion Control

Grading, stormwater drainage, and erosion control are important for maintaining your site’s integrity—and they’re often required by Spokane County, especially for larger shops.

Your project may require:

• A stormwater management plan

• A grading permit

• Erosion control fencing during construction

We design site plans that meet environmental regulations while keeping your project on schedule.

9. Septic Systems and Water Access

If you’re building a shop with plumbing or living quarters, you’ll need to connect to an existing septic system or install a new one. This involves working with:

• Spokane County Environmental Services

• Well water or public water sources

• Percolation tests and septic designs

We coordinate these services and help clients determine the most cost-effective setup for their location and usage plans.

10. Inspections and Final Approvals

Once your shop is built, it must pass a series of inspections—typically including:

• Framing

• Electrical

• Plumbing (if applicable)

• Final inspection for occupancy or use approval

We schedule and manage these inspections for you and walk through every stage to ensure the build is completed to code and approved on time.

11. Why Local Experience Matters

Spokane’s codes, climate, and land-use rules are unique—and that’s where local experience makes a big difference.

At Stimson Contracting, we’ve worked with Spokane County for years. We know how to:

• Navigate zoning and permitting

• Design for snow and wind

• Communicate with inspectors and engineers

• Build lasting, high-quality shops that pass inspection the first time

12. Start Your Spokane Shop Project With Confidence

Building a shop in Spokane is a smart investment—but only if it’s done right. At Stimson Contracting, we bring deep local knowledge, expert craftsmanship, and a proven process that ensures your shop meets all legal, structural, and functional standards.

Whether you’re just starting your planning or ready to break ground, we’re here to help every step of the way.