Do You Need a Home Inspection on a New Townhome? (2026)

A new townhome comes with new appliances, clean finishes, current building codes, and a builder warranty. It also comes with a construction process that involved dozens of subcontractors working on tight schedules across multiple units, often simultaneously. Framers, electricians, plumbers, HVAC techs, roofers, drywall crews, painters, and landscapers all cycle through the project on overlapping timelines. Each one does their piece and moves to the next unit.

That's not a criticism of how production building works. It's how every multi-unit development gets built. But it means that one crew's work sometimes gets covered up by the next crew before anyone checks it. An electrician installs wiring that gets buried behind drywall before the framing inspection catches a missed connection. A roofer flashes a penetration, and the insulation crew works around it without noticing the gap. A plumber runs a drain line with insufficient slope, and nobody tests it under load until someone moves in and runs the dishwasher and washing machine at the same time.

According to Pro-spect Inspection Services, 86% of newly constructed homes they inspected in 2025 had major defects, and every home had at least one issue requiring correction. That's not a scare statistic. It's a reflection of how complex home construction is and why an independent set of eyes matters even when the building is brand new.

The Gap Between a Code Inspection and a Home Inspection

This is the part most new-build buyers misunderstand: the city already inspected it, so why would I pay for another inspection?

Because the city inspection and a home inspection serve completely different purposes.

Municipal code inspections verify that the work meets minimum building code requirements at specific stages of construction (foundation, framing, electrical rough-in, plumbing rough-in, mechanical, and final). The code inspector checks that the work doesn't violate code. They're not evaluating workmanship quality, energy efficiency, long-term durability, or whether the finished product will actually perform well for the buyer.

In San Diego, a municipal inspector might spend 15 to 30 minutes at each stage on a single unit. They're checking for code compliance across multiple projects in a single day. They catch major violations, but they don't have the time or the mandate to evaluate every detail of every system the way a buyer's inspector does.

An independent home inspection evaluates the completed home from the buyer's perspective. The inspector spends 2 to 4 hours in your specific unit, checking every accessible system for function, condition, installation quality, and safety. They're not limited to code minimums. They're evaluating whether the home was built well.

	Municipal Code Inspection	Independent Home Inspection
Purpose	Verify code compliance at construction stages	Evaluate overall condition and quality for buyer
Time spent per unit	15 to 30 minutes per stage	2 to 4 hours total
Who pays	Builder (permit fees)	Buyer
What's checked	Code minimums at specific milestones	All accessible systems, finish quality, function
Who it serves	Public safety (minimum standards)	The buyer (comprehensive quality evaluation)
Catch rate for defects	Major violations	Defects, quality issues, safety concerns, and code items

What Inspectors Find in New Townhomes

New construction defects aren't the same as the problems you'd find in a 30-year-old home. You're not dealing with aging systems or deferred maintenance. You're dealing with installation errors, missed details, and shortcuts that happened during the build.

Grading and drainage issues are one of the most common and most consequential findings. The soil around the foundation should slope away from the building so water drains away from, not toward, the structure. In production townhome developments, grading sometimes gets rushed during the final landscaping phase. Negative grading (soil sloping toward the foundation) is a direct path to moisture intrusion and foundation problems. This is especially relevant in San Diego, where the transition from dry season to rainy season can expose grading failures quickly.

HVAC installation problems show up frequently because the ductwork gets installed in tight spaces (attics, soffits, interior chases) and isn't always accessible for easy verification during construction. Common findings include disconnected or crushed flex duct in the attic, insufficient supply runs to certain rooms, and condensate lines that aren't properly routed or connected.

Electrical defects range from reversed polarity outlets (hot and neutral wires swapped) to missing GFCI or AFCI protection where current code requires it. Double-tapped breakers (two circuits on one breaker) and missing cable clamps at junction boxes are also common.

Plumbing issues include slow drains from insufficient slope, supply connections that drip under pressure, toilets that aren't properly sealed to the floor, and dishwasher drain lines connected without a required air gap or high loop.

Roof and flashing defects include improperly installed step flashing at wall transitions, kicked or cracked tiles from foot traffic during construction, and missing roof-to-wall kickout diverters that prevent water from running down the siding.

Missing insulation in attic sections, exterior wall bays, and around HVAC components is surprisingly common. Insulation crews sometimes miss sections behind ductwork, at the eaves, or in areas where other trades added penetrations after the insulation was installed.

The Builder Walkthrough Is Not an Inspection

Most builders conduct a walkthrough (sometimes called a "blue tape walk") before closing where you walk through the unit with a builder representative and flag cosmetic issues: paint touchups, drywall imperfections, scuffed flooring, cabinet alignment, and other finish details.

This is useful for what it covers. But it covers surfaces, not systems. The builder walkthrough doesn't open the electrical panel. It doesn't go into the attic. It doesn't test water pressure across all fixtures simultaneously. It doesn't check the drainage slope of the site grading. It doesn't evaluate the HVAC temperature differential or test the condensate drainage.

The walkthrough and the inspection are complementary, not interchangeable. The walkthrough catches cosmetic items you can see. The inspection catches system-level items you can't.

When to Schedule the Inspection

Before closing is the most common timing, and it's the minimum. You schedule the inspection after the builder's final punch list is completed (or close to completed) and before you sign the closing documents. This gives you documented findings to present to the builder for correction before you take ownership.

Pre-drywall inspection is an option in some new construction purchases (your contract with the builder may or may not allow it). This inspection happens after framing, rough-in plumbing, rough-in electrical, and HVAC installation, but before the drywall goes up and covers everything. It's your only chance to see the framing, wiring, plumbing, and ductwork before they're hidden. If you can get a pre-drywall inspection, take it.

11-month warranty inspection is the other critical timing. Most builders provide a one-year warranty on workmanship. An inspection at the 10 to 11-month mark identifies any defects that have developed during the first year of occupancy (foundation settling that showed up as cracking, drainage problems that emerged during the first rainy season, HVAC issues that became apparent in summer heat). You submit the findings to the builder for warranty correction before the year expires.

Inspection Timing	What It Catches	Why It Matters
Pre-drywall	Framing defects, rough-in errors, insulation gaps	Last chance to see systems before they're hidden
Final (pre-closing)	Completed system function, finish quality, grading	Documented findings for builder correction before ownership
11-month warranty	Defects that emerged during first year of use	Submit to builder before warranty expires

Townhome-Specific Considerations

New townhome inspections have a few characteristics that differ from new single-family home inspections.

Shared wall fire separation. The wall between attached townhome units must meet specific fire resistance requirements (typically a one-hour or two-hour fire-rated assembly depending on the construction type). The inspector checks the garage-to-living-space separation as well. Penetrations through fire-rated assemblies (cable runs, pipe penetrations, outlet boxes) that aren't properly sealed compromise the fire rating.

Shared drainage. In townhome developments, the site drainage plan is designed for the entire development, not individual units. Your unit's drainage depends on the grading of adjacent units and common areas functioning as designed. If the grading on the neighboring unit's side directs water toward your foundation, that's your problem even though the cause is on their property.

Attic separation. In attached townhomes, attic spaces may or may not be separated between units. The inspector checks whether a firewall extends through the attic between units. Missing or incomplete attic firewalls are a fire safety issue and a code violation.

Garage fire separation. Attached garages in townhomes must have fire-rated drywall (typically 5/8-inch Type X) on the garage side and a self-closing door between the garage and living space. New construction sometimes has the right drywall but the wrong door (a standard hollow-core instead of a fire-rated solid door), or a self-closing hinge that was never adjusted to close the door fully.

What the Inspection Costs and What It Saves

A new construction townhome inspection in San Diego typically costs $400 to $600, depending on unit size. A pre-drywall inspection adds $300 to $500. The 11-month warranty inspection runs about the same as the original inspection.

Compare those costs to the cost of discovering and fixing problems after the warranty expires. A grading correction after a year of rain damage might cost $2,000 to $5,000. An HVAC ductwork repair in a finished attic runs $500 to $2,000. Correcting a fire separation issue after drywall is complete costs more than catching it during the pre-drywall inspection.

The inspection gives you a documented list of items the builder is obligated to address. Without it, you're relying on the builder's quality control (which already missed the issues) and the city's code inspection (which was never designed to catch them).

How We Inspect New Townhomes at 360

New construction is its own animal. The systems are new, but the errors are fresh too, and they're easier to fix now than they will be in five years when the warranty is long gone and the drywall has been painted three times.

We approach new townhome inspections with the understanding that we're not looking for wear and tear. We're looking for installation defects, missed details, and workmanship issues that the builder's crew and the city inspector didn't catch. We document everything with photos and deliver a report the builder can work from, not argue with.

When we find conditions that need specialized follow-up (structural concerns, suspected code violations beyond what's visible, or issues that require the builder's engineering team to evaluate), we flag them clearly and recommend the appropriate next step.

For the full scope of what our home inspections cover, see our buyer's guide. For townhome-specific vs. condo-specific inspection differences, our townhome vs. condo comparison covers how the property type shapes the inspection.

Schedule online or call (858) 707-7066.

Frequently Asked Questions

Q: Do new townhomes really need an inspection?

Yes. New construction involves dozens of subcontractors and hundreds of individual tasks. Installation errors, missed details, and quality issues are common even in well-built developments. The city code inspection verifies minimum standards, not overall quality. An independent inspection evaluates the completed home from the buyer's perspective.

Q: What are the most common defects found in new townhomes?

Grading and drainage issues (soil sloping toward the foundation), disconnected or crushed HVAC ductwork, missing insulation sections, electrical wiring errors (reversed polarity, missing GFCI/AFCI), plumbing connection leaks, roof flashing defects, and incomplete fire separation between attached units.

Q: What's the difference between a builder walkthrough and a home inspection?

The builder walkthrough focuses on cosmetic finish items (paint, drywall, flooring, cabinets). The home inspection evaluates every accessible building system for function, safety, and installation quality. The walkthrough catches what you can see. The inspection catches what you can't.

Q: When should I schedule the inspection on a new townhome?

After the builder completes their final punch list and before closing. If your purchase contract allows it, also schedule a pre-drywall inspection (after framing and rough-in, before drywall). At the 10 to 11-month mark, schedule a warranty inspection to catch defects that emerged during the first year.

Q: Does the builder have to fix what the inspection finds?

The builder is generally obligated to correct items that don't meet the building code or the purchase contract's specifications. Cosmetic items and workmanship concerns may be subject to the builder's warranty terms. The inspection report provides documented evidence to support your correction requests.

Q: How much does a new construction townhome inspection cost in San Diego?

Most new townhome inspections cost $400 to $600 depending on unit size. Pre-drywall inspections cost $300 to $500 as an additional service. The 11-month warranty inspection runs about the same as the initial inspection.

Q: What is a pre-drywall inspection?

A pre-drywall inspection happens after framing, electrical rough-in, plumbing rough-in, and HVAC installation but before drywall covers everything. It's your only opportunity to see the structural framing, wiring, pipe routing, and ductwork before they're permanently hidden behind walls and ceilings.

Q: What is an 11-month warranty inspection?

Most builders offer a one-year workmanship warranty. An inspection at the 10 to 11-month mark identifies any defects that developed during the first year (settling cracks, drainage problems that appeared during the rainy season, HVAC issues under real-world loads). The findings are submitted to the builder for warranty correction before the one-year mark.

Q: Can a new townhome have foundation problems?

Yes. Concrete cures and settles over the first year or two. Minor shrinkage cracks are normal and typically cosmetic. Wider cracks, offset cracks, or cracks accompanied by doors and windows that no longer close properly may indicate differential settlement and warrant further evaluation.

Q: Will the builder let me bring an independent inspector?

In most cases, yes. Builders may prefer that the inspection happen at a scheduled time, and some restrict access during active construction for safety reasons. Your purchase contract may address inspection access. If a builder resists an independent inspection, that itself is worth noting.

The Short Version

New doesn't mean perfect. It means untested. Every system in a new townhome is being used for the first time when you move in, and the construction process that built it involved enough people, enough steps, and enough handoffs that errors are a statistical certainty, not a maybe.

The inspection doesn't assume the builder did a bad job. It verifies that the finished product works the way it should. That's the difference between moving in with confidence and moving in with hope. One of those is a plan. The other is a gamble.

Cost estimates in this article reflect general ranges for the San Diego County market as of 2026 and vary by unit size, development, and inspection scope.