By John Delia Jr. — licensed Michigan residential builder
The biggest mistake on a new home isn’t made during construction. It’s made before construction ever begins.
Most homeowners assume budgets spiral because lumber gets expensive or a subcontractor misses a deadline. In reality, most overruns were set in motion weeks — sometimes months — before the first shovel touched the ground. The cost wasn’t created on the jobsite. It was created in everything that wasn’t checked before the jobsite existed.
That’s the job of preconstruction: finding risk while it’s still cheap to solve.
Two phases, one idea
I think about every project in two phases.
Planning creates certainty. Construction executes it.
When the planning is weak, construction gets expensive — because every unknown you carry past the starting line eventually turns into a change order, a delay, or a check you didn’t plan to write. Strong preconstruction doesn’t make a project fancier. It makes it predictable. And predictability is the thing a budget actually rests on.
The Six Questions Before I Build
Before I price a project, I want six questions answered. Not estimated — answered.
- Can we legally build it on this lot? Zoning, setbacks, and the real buildable envelope.
- What materials does it actually require? A true takeoff, not a rough guess.
- How much labor does it take?
- What will the whole thing cost — land to keys, not just the structure?
- What’s the realistic finished value?
- How long will it take?
If those six aren’t answered before you’re handed a price, the quote is built on assumptions that still need to be tested. That doesn’t make the builder dishonest — it makes the number unfinished.
Builders estimate the house. I estimate the project.
This is the difference that decides whether a budget holds.
Most people — and plenty of builders — estimate the house: foundation, framing, roof, windows, drywall, trim. That part is visible, so it gets counted. It’s also the part everyone already knows how to price.
Then the project arrives with the rest of the bill. Land and acquisition costs. Permits and entitlements. Utility taps that may or may not already be on the parcel. Site work and excavation. Engineering and inspections. Financing and the cost of carry while the build runs. Property taxes during construction. Final grading, landscaping, and the contingency for the things nobody can see until the ground is opened.
None of that is “the house.” All of it is real money. And every line a builder forgets to count doesn’t disappear — it simply moves from the estimate onto your final bill, usually as a change order after you’ve already committed and can’t easily walk away.
| The House (what usually gets priced) | The Project (what actually gets built) |
|---|---|
| Foundation | Everything in the House column, plus: |
| Framing | Land & lot acquisition |
| Roof | Permits & entitlements |
| Windows | Utilities & taps |
| Drywall | Site work & excavation |
| Trim | Engineering & inspections |
| Financing & cost of carry | |
| Property taxes during the build | |
| Final grading & landscaping | |
| Contingency for the unknown |
The house is one input. The finished project — dirt to keys — is the deliverable. A builder who prices only the left column isn’t lowballing you on purpose. They’re just handing you half a number and calling it whole.
Detroit makes this easy to see
I build in Detroit, and Detroit shows this principle in high definition — but the principle travels. A builder in Columbus, Cleveland, Grand Rapids, or Indianapolis is solving the same equation.
On a Detroit infill lot, the pre-permit work often includes verifying zoning and setbacks, ordering a boundary survey so you’re designing to your real width and not an assumed one, confirming soil conditions that decide the foundation, and checking whether usable utilities are actually on the parcel. Many parcels also qualify for the Neighborhood Enterprise Zone tax abatement — but only if the paperwork is filed before the permit and construction start. File it out of order and you can forfeit years of savings.
None of that is a construction cost. All of it is a project cost. Wherever you build, the vacant-lot math is the same: the price of the dirt tells you almost nothing about the cost of making it buildable.
A short story about a “perfect” lot
I recently looked at a parcel that looked ideal online. The dimensions worked. The asking price made sense. On a listing page, it was an easy yes.
Then I did the preconstruction work — pulled the records, checked the setbacks against the buildable envelope, and reviewed the utility situation. A few hours in, it was clear the project wasn’t nearly as attractive as the listing made it look. What read as a clean lot carried enough hidden cost to turn a promising build into a loss.
A few hours of research saved what could have become a six-figure mistake. That’s not a story about being clever. It’s a story about doing the boring work before the exciting work.
How to tell whether a builder actually preconstructs
You don’t need to be an estimator. You just need to know whether the person quoting you did the work. A few questions surface it fast:
- “Is the site work in this number, or just the house?” You want to hear grading, utilities, driveway, final grade, and cleanup named specifically.
- “What did you verify about this lot?” Zoning, survey, soil, existing utilities. A real answer references your parcel, not a generic template.
- “How are changes handled?” You want them in writing and priced when you approve them — not introduced at the end.
- “How is this budget organized?” A builder who codes their budget consistently can compare it to past jobs. One who can’t is pricing from feel.
Specific answers mean you’re talking to someone working from verified information. Vague answers mean the quote is still resting on assumptions that haven’t been tested yet.
What preconstruction is really about
I believe building a home shouldn’t feel like gambling. The more uncertainty we remove before construction begins, the more predictable the entire project becomes — in cost, in schedule, and in outcome.
That’s what preconstruction actually is. Not paperwork. Not delay. It’s the discipline of replacing assumptions with verified information before the money gets spent. Better building starts with better decisions, and better decisions come from better information. Everything I do before the first shovel exists to give you both.
If you’re weighing a lot right now and want a straight read, send me the address — I’ll spend some time on it and tell you what I’d investigate first. No pitch. Just an honest look at the dirt before you fall in love with it.