Is an Inspection Necessary on New Construction? - Realtor Cas Cassandra Marks

Published July 30, 2026. Yes, an independent inspection is necessary on new construction, even though the city or county already inspects the home during permitted work. Municipal inspections check code compliance only, performed by inspectors who are typically overtaxed and covering many sites at once; they do not evaluate workmanship, finish quality, or the kind of installation errors that show up after move-in. An independent buyer's inspector catches issues an overtaxed code inspector or a builder's own supervisor may miss, and does so while the builder is still contractually on the hook to fix them under warranty. This guide covers the difference between code inspections and an independent inspection, what independent inspectors typically catch in brand-new homes, the phases of a new construction inspection (pre-pour/foundation, pre-drywall/framing, final walkthrough, and the 11-month builder warranty inspection), how inspection findings can be used to negotiate repairs or credits before closing, and how a home inspection differs from an appraisal. AUTHOR: Cassandra Marks, REALTOR®, Clark County WA, licensed WA and OR, REAL Broker, Elite Agent, Circle of Excellence Diamond Platinum Member, Top 500 Solo Agent in Washington. 120+ homes sold, $66.1M+ closed sales, 5.0 stars, 50+ Google reviews. Phone: 503-884-2387. Website: realtorcas.com.

Is an Inspection Necessary on New Construction?

Yes. City code inspections and an independent buyer's inspection aren't the same thing. Here's what each one actually checks, and why the gap between them matters.

Yes, an independent inspection is necessary on new construction, even though the city already inspects the home during permitted work. Municipal inspections check code compliance only, at specific stages, and the inspectors doing that are often covering a lot of sites at once. An independent buyer's inspector is looking at workmanship and finish quality instead, which catches installation errors a code pass doesn't rule out, while your builder's warranty is still active.

Cassandra Marks, REALTOR®, Realtor Cas, Vancouver WA & Clark County | July 30, 2026
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I hear a version of this question from almost every new construction buyer at some point. "It's brand new, why would I need an inspection?" It's a fair question, honestly. The answer isn't obvious unless you know what a city or county inspector is actually checking for versus what an independent inspector is looking at. They're not the same job, even though it sounds like they should be.

This one pairs directly with a question I get just as often, do I need my own Realtor when buying from a builder. Your agent is usually the one making sure this inspection actually happens on schedule, not after you've already lost your leverage.

If you're still getting oriented to the process overall, my overview of new construction homes in the Pacific Northwest and my full walkthrough of buying new construction in Vancouver, WA are good starting points before you get into the inspection specifics below.

🏛️ Know the Difference

Doesn't the City Already Inspect New Construction Homes?

Yes, but it's checking a different thing than you'd expect. Throughout construction, city or county inspectors visit the site at specific, required stages: footings before concrete is poured, framing before it's covered up, rough-in plumbing and electrical, and a final inspection before a Certificate of Occupancy is issued. Here in Clark County, you can see the full list of required stages on the county's own building inspections page.

What they're confirming is code compliance. Did the work meet the minimum standard required by law. What they're not doing is evaluating overall workmanship, finish quality, or whether something was installed correctly but sloppily. A municipal inspector might be responsible for dozens of active sites in a single week, so a pass doesn't mean every detail got a close look. It means the visible, required items met code at that moment.

This is one of the biggest differences between new construction and a typical resale purchase. If you're weighing the two, buying a home in Vancouver, WA generally means an existing property with years of use to inspect against, not a single code pass.

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The builder's own supervisor is in a similar position, overseeing multiple homes at once, sometimes across several developments. Even a well-run builder can miss something a dedicated, independent inspector will catch, because that inspector's only job that day is your house.

🔍 What Actually Gets Missed

What Do Independent Inspectors Actually Catch in Brand-New Homes?

None of these are usually visible during a standard builder walkthrough, and none of them mean the home failed its code inspections. They're the kind of detail a code pass just doesn't rule out.

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Plumbing Connections

Improperly sealed or connected fittings

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Electrical Wiring

Miswired outlets, panel labeling errors

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Insulation Gaps

Missed spots that affect efficiency

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Exterior Grading

Uneven slope that causes drainage issues

Individually, most of these are inexpensive to fix, but only if they're caught while the builder is still on-site and still responsible for the home. Once you've closed and moved in, the same fix becomes your problem and your bill.

📋 Timeline

What Are the Different Phases of a New Construction Inspection?

A thorough independent inspection isn't a single event. Ideally it happens at a few key points, though even a single pre-closing inspection is far better than none at all.

Phase	When It Happens	What Gets Checked
Foundation / Pre-Pour	Before concrete is poured	Layout, reinforcing steel, site conditions
Pre-Drywall / Framing	Before insulation and drywall go up	Framing, rough-in plumbing, electrical, HVAC, while it's all still visible
Final Walkthrough	Before closing	All systems, finishes, punch list items
11-Month Warranty Inspection	Just before the builder's warranty expires	Settling cracks, seasonal HVAC issues, anything that surfaced after move-in

⏳ Why Timing Matters

Why Does the 11-Month Warranty Inspection Matter So Much?

Most builders offer a one-year warranty on new construction. Some issues don't show up right away. A settling crack, a door that starts sticking, an HVAC system that struggles once it hits its first real summer or winter. Those tend to surface only after the home has gone through a full season cycle, which is exactly why the timing of this inspection matters.

An inspection performed a month or so before that warranty expires catches those issues while the builder is still contractually obligated to fix them at no cost to you. Wait past that window, and the same repair becomes entirely your responsibility.

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Put it on your calendar the day you close. It's easy to forget a warranty deadline eleven months out, so set a reminder now, not when you happen to notice a crack.

This matters even more if you're buying new construction specifically to simplify maintenance down the road. See my guide on new construction for retirees in Vancouver, WA for what else to plan around.

💬 Before You Close

Can Inspection Findings Actually Get Me Anything from the Builder?

Yes, documented findings give you real leverage. A builder generally has more incentive to resolve an issue quickly, quietly, and at their own cost before closing than to deal with it after you've moved in, once the relationship has shifted from "closing this sale" to "fielding a warranty claim."

This is one of the places where having your own representation pays off directly. An agent experienced with new construction knows how to use inspection findings to negotiate repairs or a closing cost credit, rather than letting the builder simply promise to "get to it later." I cover the rest of what a buyer's agent handles on a builder deal in do I need a Realtor when buying new construction from a builder, and how closing cost credits typically work in my guide on builder incentives and what to check before you sign.

❓ Common Confusion

Is a Home Inspection the Same Thing as an Appraisal?

No, and this mix-up trips up a lot of first-time buyers. An appraisal is for your lender. It estimates the home's market value to confirm the loan amount is justified. A home inspection is for you. It evaluates the physical condition of the structure and its systems. HUD lays out this exact distinction in its own homeownership guidance, and it's worth reading if you want the plain-language version straight from a federal source.

Passing an appraisal says nothing about whether the plumbing was installed correctly. The two serve completely different purposes, and having one done is never a substitute for the other.

✅ Before You Close

What Should I Do to Make Sure My New Build Gets Properly Inspected?

Schedule an independent inspection before closing. Never rely on the city inspections or the builder's own walkthrough alone.
Ask about a pre-drywall inspection if your builder's timeline allows it, since framing, plumbing, and electrical are only visible before drywall goes up.
Bring an inspector who works new construction regularly. The punch list they generate should be specific enough for the builder to act on.
Get everything in writing before closing, and confirm punch list items are completed before, not after, you take possession.
Set a reminder for your 11-month warranty inspection the same day you close. This is the step almost everyone forgets.
Loop in your buyer's agent on any findings before closing, so they can negotiate repairs or credits while you still have leverage.

Bottom Line

A Code Pass Isn't the Same as a Quality Check

New doesn't mean flawless. It means the home met the minimum legal standard on the day an overtaxed inspector signed off on it. An independent inspection is the only step in the entire process that's looking out purely for your interests, at every phase from pre-pour through the final month of your warranty. If you're buying new construction in Vancouver, Camas, or anywhere in Clark County, I'm happy to walk you through what to expect at each stage.

Frequently Asked Questions

New Construction Inspections: Common Questions Answered

Is an inspection necessary on new construction?

Yes. Even though the city or county inspects new construction during permitted work, those inspections only check code compliance, performed by inspectors who are typically covering many sites at once. An independent buyer's inspection evaluates workmanship and finish quality, catching issues code inspectors and builder supervisors commonly miss.

Doesn't the city already inspect new construction homes?

Yes, but municipal inspections check code compliance at specific stages: footings, framing, rough-in plumbing, electrical, and a final. They're not evaluating overall workmanship or finish quality. City inspectors are often responsible for many sites at once, and a code pass doesn't mean every detail was reviewed closely.

What's the difference between a home inspection and an appraisal?

An appraisal is for the lender and estimates the home's market value. A home inspection is for the buyer and evaluates the physical condition of the structure and its systems. Passing an appraisal says nothing about whether the plumbing, electrical, or HVAC were installed correctly.

What is a builder's 11-month warranty inspection?

Most builders offer a one-year warranty on new construction. An 11-month inspection, performed just before that warranty expires, identifies issues that developed during the first year of occupancy, like settling cracks or seasonal HVAC problems, while the builder is still contractually obligated to fix them.

What do inspectors typically find in brand-new homes?

Common findings include improperly installed plumbing connections, electrical wiring errors, insulation gaps, uneven exterior grading that can cause drainage issues, and HVAC systems that aren't properly balanced. None of these are usually visible during a standard builder walkthrough.

Can I use inspection findings to negotiate with the builder?

Yes. Inspection findings give buyers documented leverage to request repairs or a closing cost credit before finalizing the purchase, while the builder still has incentive to resolve issues rather than risk delaying closing.

Buying New Construction? Don't Skip This Step.

Let's talk about what an inspection timeline should look like for your specific build, and make sure nothing gets missed between pre-pour and your final walkthrough.

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