Don’t Let These Costly Errors Set Your Project Back

Top 5 Mistakes to Avoid in Commercial Site Development

Commercial site development is a complex puzzle with many moving parts—from permitting and excavation to utilities and drainage. One wrong move early on can snowball into expensive delays, change orders, or structural problems down the road.

At Black Mountain Excavation, we’ve seen it all—and we’re here to help you avoid the most common mistakes before you break ground. Here are five critical errors developers and contractors should steer clear of during commercial site prep.


Mistake #1: Skipping a Thorough Site Assessment

Rushing into development without evaluating the site’s conditions is a fast track to problems. Every site should be reviewed for:

  • Soil quality and load-bearing capacity
  • Existing topography and elevation changes
  • Environmental or drainage challenges
  • Utility conflicts and easements

Without this intel, your grading, foundation, and utility plans could be based on assumptions—and assumptions lead to expensive rework.


Mistake #2: Underestimating Permitting Timelines

Permits for grading, excavation, stormwater control, and utility installation aren’t just formalities—they’re required, and they take time. Many commercial projects are delayed because:

  • The wrong type of permit was applied for
  • Documentation was incomplete
  • Environmental or zoning concerns emerged

We recommend starting permit coordination as early as possible and working with a contractor who understands your local jurisdiction’s requirements.


Mistake #3: Poor Grading and Drainage Planning

Improper grading is one of the most common (and costly) mistakes in site development. If your site doesn’t manage water correctly, you risk:

  • Flooded structures
  • Erosion and sediment issues
  • Failed inspections and delays

Every commercial site needs a grading plan that promotes positive drainage away from buildings, roads, and walkways. At Black Mountain Excavation, we use GPS-guided machines to grade to exact elevations and slope specs.


Mistake #4: Failing to Coordinate Trades During Site Prep

Site work isn’t done in a vacuum—it affects the schedules of electricians, plumbers, masons, landscapers, and more. If your excavation, utility, or grading crews don’t stay in sync with the overall construction timeline, you risk:

  • Re-digging trenches
  • Conflicting equipment or access paths
  • Delays in inspections or slab pours

We work closely with general contractors and project managers to ensure smooth coordination during every phase of development.


Mistake #5: Choosing the Lowest Bid Without Vetting Experience

We get it—budgets are tight. But choosing an excavation or site prep contractor based purely on price is risky. Ask yourself:

  • Do they have experience with commercial projects?
  • Are they licensed, insured, and safety-certified?
  • Can they handle permitting, compliance, and inspections?
  • Will they finish on time and communicate clearly?

At Black Mountain Excavation, we provide detailed, transparent bids and a track record of delivering results—not just moving dirt.


Avoid the Pitfalls. Build with Confidence.

Your site work sets the tone for your entire build. By avoiding these common mistakes, you’ll reduce risk, improve efficiency, and keep your commercial project on solid ground.


Partner with Colorado’s Site Prep Experts

Contact Black Mountain Excavation today to request a quote or consultation. Let’s get your site development started the right way.

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Picture of Dalston Zimmerman

Dalston Zimmerman

Black Mountain Excavation Founder & CEO