Approved Plans Aren’t Always Optimized Plans. The Difference Can Cost $1.5 Million
Last updated: March 4, 2026
Quick Answer
An engineer reviewed approved civil plans before construction began and identified $1.5 million in unnecessary costs in 36 hours of review. The changes: dirt movement reduced from 850,000 yards to 420,000 yards, 1,300 feet of unnecessary pipe eliminated, and six redundant inlets removed. Zero changes to drainage function or detention requirements. The original plans worked. They were approved. They met every code requirement. They were also going to cost $1.5 million more than necessary. Approved and optimized are not the same thing. Most engineering firms get paid whether your project costs $5 million or $8 million to build. There is no financial incentive built into the standard engagement to spend extra time optimizing. The firms that do it anyway understand that their real value isn’t in drawing plans faster.
Note: Project details sourced from LinkedIn post by Michael Groselle, P.E. Michael should confirm figures before publishing.
Approved Doesn’t Mean Optimized
The plans worked. They were approved by the reviewing authority. They met every code requirement. By every standard measure of the engineering process, the job was done.
They were also going to cost $1.5 million more than necessary to build.
That gap, between plans that are approved and plans that are optimized, is one of the most expensive blind spots in Texas development. It doesn’t show up in a permit rejection. It doesn’t trigger a redesign. It quietly shows up in the construction bid, and by that point, most developers assume the number is what it is.
What 36 Hours of Review Found
Before construction began, an engineer reviewed the approved civil plans. The review took 36 hours. Here is what it found:
Dirt movement was specified at 850,000 yards and was reduced to 420,000 yards with no change to the grading design intent. 1,300 feet of pipe was eliminated as unnecessary. Six drainage inlets were identified as redundant and removed. Drainage function was unchanged. Detention requirements were unchanged. Every code requirement was still met.
The total savings: $1.5 million in construction costs, identified before a single shovel hit the ground.
Why This Keeps Happening
Engineering firms are measured on how fast they can get plans approved. The client pressure is real and consistent: get this permitted in 60 days, we need these plans yesterday, just make it work so we can break ground.
So engineers design defensively. They oversize pipes. They add extra detention. They follow the path of least resistance through plan review because the goal is approval, not optimization. It works. It gets approved. It moves projects forward.
But it is expensive.
Most engineering firms get paid whether your project costs $5 million or $8 million to build. There is no financial incentive built into a standard engagement to spend extra time questioning whether every line on the plan earns its place. The fee is the same either way.
The Uncomfortable Truth About Standard Engineering Engagements
Just because plans are approved or lot yield is maximized doesn’t make it the best investment for a developer.
The difference between approved and optimized can be millions of dollars in construction costs. On a project where the developer has already negotiated the land price, the financing rate, and the construction contract, a $1.5 million reduction from a 36-hour plan review is a number that changes project economics before a single shovel hits the ground.
The firms that consistently find that value understand that their real job isn’t drawing plans faster. It’s making sure every line on those plans earns its place.
What Developers Should Be Asking Before Construction Begins
Most developers review plans for permit compliance. That is one question. Whether those plans are also optimized for construction cost is a different question entirely, and it is not currently built into the standard engineering workflow.
Before breaking ground on any Texas development project, the question worth asking is not only “were these plans approved?” It is “were these plans optimized?”
What matters more to you: getting plans approved quickly, or getting them approved right?
Frequently Asked Questions
Q: How much can construction costs be reduced through plan optimization? In one documented case, a 36-hour review of approved civil plans identified $1.5 million in unnecessary construction costs, including a reduction in dirt movement from 850,000 to 420,000 yards, elimination of 1,300 feet of pipe, and removal of six redundant drainage inlets, with zero changes to drainage function or detention requirements.
Q: Why don’t engineering firms automatically optimize plans for construction cost? Most engineering firms are paid the same fee whether a project costs $5 million or $8 million to build. Under deadline pressure to get plans approved quickly, the standard workflow prioritizes approval over optimization. There is no financial incentive in a typical engagement to spend additional time questioning whether every design element is necessary.
Q: When should a developer request a construction cost optimization review? Before construction begins and after plans are approved. At that stage, changes can still be made to the design without restarting the permit process, and the savings go directly to the project’s construction budget.
Q: What is the difference between approved plans and optimized plans? Approved plans meet code requirements and pass regulatory review. Optimized plans do the same while also eliminating unnecessary construction cost. A plan can be fully compliant and still include oversized pipes, excess dirt movement, or redundant infrastructure that adds cost without adding function.
Related Resources
2022 Texas State Water Plan, Texas Water Development Board
Texas 2036 Water Infrastructure Assessment
Working With an Engineer Who Optimizes, Not Just Approves?
Modern Engineering Solutions reviews plans for construction cost efficiency, not just permit compliance. We ask whether every line earns its place before your project breaks ground.
We specialize in civil site design and grading optimization, utility infrastructure design for Texas developments, permitting feasibility assessments during due diligence, and TCEQ wastewater permitting strategy.
Modern Engineering Solutions, McKinney, Texas. Contact: (214) 833-6748 or mod-eng.com