Happy Valley's Growth Is Fast. Your Inspector Should Know New Construction Cold.

Happy Valley is Oregon's fastest-growing city, and most of its homes are less than 20 years old. New construction and recently annexed neighborhoods like Pleasant Valley and North Carver each carry their own inspection risks. As a Certified Master Inspector® with 10+ years of inspection experience and 12 years of contractor experience, Russ knows what builders miss.

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Russ Motyko, Certified Master Inspector performing a home inspection
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Happy Valley Housing Market

$657,500
Median sale price
57 days
Median days on market
48
Homes sold last month
94
Homes for sale now
Live Market Data · Updated March 2026
• Source: Redfin Data Center

Happy Valley Know-How

These Homes Have History. So Do I.

A Happy Valley Oregon home representative of the Clackamas County housing stock Russ inspects
Happy Valley, Oregon

Happy Valley is unlike almost any other city in the Portland metro. Most of its homes didn't exist 25 years ago. Jackson Hills, Pleasant Valley, and North Carver are still being built out. The original core neighborhoods from the early 2000s are now old enough to have real maintenance issues. And Clackamas County sits in EPA Radon Zone 1. That combination creates an inspection profile you don't see anywhere else in the region.

Not only do I have 10 years of inspector experience, I have also worked as a Contractor for 12. My specialty is difficult and high-end framing jobs, but I have replaced roofs, built, painted, and installed cabinets, ran wiring, poured concrete, waterproofed showers, set tile, replaced siding and windows, installed drywall, and set doors. That background is what lets me read a home the way a builder does, and spot what they got wrong.

When I walk a new build in Happy Valley, I am not looking for what the city inspector checked off. I am looking for improperly sealed ducts, flashing that doesn't meet manufacturer specs, grading that sends water toward the foundation, and radon mitigation that was installed but never tested. Those are the things that show up in the report, before they become your problem after closing.

I hold Certified Master Inspector® certification (top 3% of the industry), Oregon OCHI license #1898, and Washington DOL license #1856. Every inspection includes free thermal imaging.

Know What You Are Buying

Happy Valley Homes by Construction Era

Happy Valley's housing stock skews newer than almost any city in the Portland metro, but each era still has its own inspection profile. Knowing which era you are buying into tells you a lot about what the inspection will find.

Pre-1965 Homes

Happy Valley's oldest homes are few and scattered. Before the city incorporated and began its rapid growth, this area was largely rural, with farmhouses and a handful of early residential properties on larger lots. If you are buying one of these homes, you are looking at a property that is 60 or more years old and has likely been updated piecemeal across multiple owners.

Galvanized steel supply pipes corrode from the inside out and are common in homes from this period. After 60-plus years underground, internal diameter is often significantly reduced, water pressure drops, and discoloration at fixtures is a regular finding. Full repipe runs $10,000 to $25,000 depending on the size of the home. Sewer lines from this era, cast iron in most cases, have been in the ground just as long and warrant a sewer scope.

Electrical systems in pre-1965 homes often reflect decades of patchwork updates. Original panels may have been replaced once or twice, but the wiring behind the walls sometimes hasn't kept pace. These homes take longer to inspect because there is more to document.

Common findings in pre-1965 homes
Galvanized steel supply pipes
Corroded internally. Restricted flow and discoloration common. Replacement $10,000 to $25,000.
Cast iron drain lines
60-plus years underground. Scale, joint seepage, and root intrusion are consistent findings. Sewer scope essential.
Crawlspace moisture and wood rot
Older foundations without modern waterproofing manage decades of Pacific NW humidity poorly.
Patchwork electrical updates
Multiple decades of owner updates that do not always meet current code. Common in rural-to-residential conversions.
Roofs at or past service life
Often re-roofed once or twice. Age and layers are documented in the report.

1965–1985 Homes

Happy Valley had very little residential development during this period. The area was still largely rural and unincorporated. The few homes from this era tend to sit on larger lots and carry characteristics common to rural Clackamas County builds of the time. Think stick-frame construction with older mechanical systems and often a mix of well and septic infrastructure that may have since been converted to municipal utilities.

Where polybutylene plumbing is present in this era across the Portland metro, it's less prevalent in Happy Valley than in cities that grew faster during the 1975 to 1995 window. That said, any home from this period that was built or remodeled in the late 1970s through mid-1990s could have it. I check for it on every inspection. Identification before closing avoids a $10,000 to $20,000 surprise later.

Common findings in 1965–1985 homes
Polybutylene plumbing (where present)
Less common in Happy Valley than in denser suburbs, but present in some remodeled or expanded homes. Degrades with chlorine exposure.
Federal Pacific and Zinsco panels
Documented safety concerns. Insurance carriers frequently flag or decline coverage on homes with these panels.
Legacy septic or well systems
Some rural-era properties converted to municipal systems, some have not. Specialist evaluation required for active private utilities.
Crawlspace moisture
Older vapor barriers and foundation drainage common on Clackamas County's hillside lots.
Roofing and sealant age
40-plus-year-old homes have often been re-roofed once. Age, condition, and remaining life are always documented.

1985–2005 Homes

This is where Happy Valley's residential development really started. The original core of the city, neighborhoods like the established subdivisions along Sunnyside Road, grew during this period. These homes are now 20 to 40 years old and have entered the maintenance phase that every house eventually reaches. They look solid, but the systems that were new in 1995 are aging on schedule.

Roofs from the early 2000s are at or near the end of their expected 25-year service life. Sealants around windows and doors have dried and cracked. CPVC plumbing, used widely in Oregon new construction from about 1995 to 2005, becomes brittle with age, especially near heat sources. I look closely at every CPVC installation for cracking at fittings and improper support. And in Clackamas County, radon is a factor in every home regardless of age.

Common findings in 1985–2005 homes
CPVC plumbing brittleness
Becomes brittle with age and heat exposure. Cracking at fittings is the early warning sign.
Composite wood siding failure
1990s hardboard and wood-fiber siding absorbs moisture in wet climates. Fails from the bottom up.
Roofs at or beyond service life
25-year shingles from 1998 to 2003 are past expected lifespan. Replacement $10,000 to $20,000.
Radon in every era
Clackamas County is EPA Zone 1 regardless of home age. Test every purchase.
Deck ledger connection deficiencies
A common code-era deficiency in homes with attached decks from this period.

Jackson Hills and New Construction

Happy Valley's newest neighborhoods, Jackson Hills, Pleasant Valley, and North Carver, represent the city's ongoing growth edge. Buyers in these areas sometimes assume that a new home doesn't need inspection. That assumption is expensive when it turns out to be wrong. Municipal code inspections check minimum standards at specific construction phases. They don't evaluate the finished home.

New construction inspection in Happy Valley consistently finds grading that directs water toward the foundation on recently disturbed lots, HVAC ductwork improperly sealed or sized, flashing errors around windows and doors, and insulation gaps in attics. These are all the builder's responsibility before you close, but only if you have a written inspection report documenting them.

The 11-month warranty inspection is specifically designed for buyers who want to document defects before the builder's one-year warranty expires. The clock starts at closing. Schedule before you hit 10 months.

Common findings in new construction
Grading and drainage toward foundation
Freshly disturbed lots in developing Happy Valley neighborhoods often drain toward the house. Common and expensive post-close.
HVAC installation defects
Improperly sealed ducts, disconnected exhaust vents, and uncalibrated systems found regularly in new Happy Valley builds.
Flashing deficiencies at windows and doors
Improper installation allows moisture into wall assemblies that look fine from the outside.
Insulation and ventilation gaps in attic
Thermal imaging finds these. Invisible to the eye and covered by builder warranty if caught in time.
Radon (yes, even in new homes)
Clackamas County geology produces radon regardless of home age. Passive mitigation systems require testing to confirm they work.
Home Risk Quiz

Is Your Dream Home Hiding Significant Issues?

See Your Potential Home Through an Inspector's Eyes.

Transform your observations into a clear risk profile. In just two minutes, you will receive a breakdown of what a professional inspector would be concerned about based on what you saw.

2 minutes
Based on what you saw at the showing
No technical knowledge needed
Free Assessment
Begin Assessment

8 quick questions. No contact info required.

1 of 8
01

How old is the home?

You'll have the year built from the listing or the seller. Home age is the single biggest driver of inspection risk.

02

What did the roof look like from the street?

Look for curling shingles, dark patches, missing granules, or visible moss. A good look at the roof from the ground can tell you more than you'd think.

03

Did you notice any musty smell inside the home?

A musty or earthy odor is the most reliable clue buyers can detect about crawlspace moisture or mold — even without going under the house.

04

Did you see the electrical panel? What did it look like?

It's usually in a utility room, garage, or hallway. Federal Pacific (orange breakers) and Zinsco panels are known fire risks and still common in Portland-area homes from the 1960s to 1980s.

05

Did you notice any water stains on ceilings or walls?

Look near the corners of ceilings, under windows, and in bathrooms. Even old-looking stains matter — they show water has been in places it shouldn't be.

06

How did the overall condition of the home feel?

Trust your gut. A home that feels well-loved and maintained usually is. One that feels neglected almost always has deferred items hiding out of sight.

07

Did the home have a finished basement, addition, or garage conversion?

These are some of the most common places to find unpermitted work. A finished space isn't automatically a problem — but without permits, there's no record of whether it was done safely.

08

Where are you in your homeownership journey?

This helps us tailor your results to your situation.

Know Your Neighborhood

Happy Valley Area by Area

Each part of Happy Valley has its own housing age, character, and inspection focus. Here is what buyers typically encounter in each area.

Jackson Hills
2000s – present

Happy Valley's luxury segment. Custom and semi-custom homes, many over $800,000. Premium finishes and larger lots, but high-end doesn't mean defect-free. These homes still need roofing, HVAC, flashing, and grading looked at closely. Radon testing is especially important given the elevation and Clackamas County's Zone 1 designation.

Pleasant Valley
Mixed eras, annexed 2023

A mix of older rural properties and new suburban development on land recently brought into the city. Some homes here still operate on septic and well water, which require separate specialist evaluations. Buyers should clarify current utility connections before closing. Soil settlement from recent development is also a factor to watch.

North Carver
Early-stage development, annexed 2023

Larger lots and ongoing construction on the city's outer edge. Private utilities are still common. Some buyers underestimate how much the transition from rural to suburban infrastructure matters when buying here. The inspection covers the home's physical condition. The utility and HOA picture needs to be understood separately.

Original Core (Sunnyside Area)
Early 2000s – 2010s

Established subdivisions with active HOAs, mature trees, and homes that are now 15 to 20 years old. Roofing systems are aging. Sealants around windows and doors have dried. CPVC plumbing from the early 2000s warrants attention. These homes need a different inspection focus than new construction across town.

HOA & Planned Communities
Mixed eras

Much of Happy Valley is HOA-governed. The inspection covers the home's physical condition. Reserve funding, pending assessments, and drainage connections to community infrastructure are separate due diligence items. Buyers in planned communities should review HOA documents before closing, not after.

Rural & Acreage Properties
Mixed eras

Larger lots on Happy Valley's edges, some with outbuildings, wells, and septic systems. These properties add scope to any inspection. Outbuildings are included. Well and septic evaluations require separate specialists. Wildfire risk is a factor on elevated or forested parcels in Clackamas County.

Clackamas County Risk Factors

What Makes Happy Valley Homes Different to Inspect

Happy Valley's geology, rapid growth, and EPA radon designation create inspection concerns that are specific to this part of the Portland metro.

EPA Radon Zone 1

Clackamas County carries the highest radon risk designation in the country. Radon is a colorless, odorless gas that seeps into homes through foundation cracks and crawlspace openings. It's the second-leading cause of lung cancer in the U.S. Many Happy Valley buyers assume builder-installed mitigation systems make testing unnecessary. They don't. Passive systems can fail and radon levels shift seasonally. The only way to know is to test every home, new or old.

Highest EPA risk zone designation

Drainage on Developed Land

Happy Valley's rapid development means many homes sit on lots that were recently agricultural or forested land. Soil that hasn't fully settled and grading that hasn't been properly established sends water toward foundations instead of away from them. It's one of the most common findings in newer Happy Valley neighborhoods, and one of the most expensive to fix after closing. Downspout placement, surface slope, and window well drainage all get documented on every inspection.

Consistent finding in new subdivisions

Wildfire Risk

A significant portion of Clackamas County properties carry some wildfire risk. Jackson Hills, North Carver, and Pleasant Valley homes at elevation or on the city's edge can fall in moderate-to-high risk zones. I evaluate defensible space, exterior cladding materials, roof and gutter condition, and venting details that matter for wildfire exposure. Insurance carriers are paying close attention to this designation in Clackamas County, and it's worth understanding before you close.

Relevant on elevated and edge-of-city lots
Full Scope Inspection

Everything We Check in a Happy Valley Home

Every inspection covers all accessible systems and components, roof to crawlspace. We physically enter attics and crawlspaces. We operate every system we can safely access. We do not check boxes. We evaluate the home.

Roof & Attic

Shingles, flashing, gutters, attic insulation, ventilation, and moisture.

Electrical

Panel, breakers, wiring type, outlets, GFCI and AFCI protection.

Plumbing

Supply pipe material, drain lines, water heater, pressure, and fixtures.

HVAC

Furnace, AC, heat pump, ductwork, and distribution. Age and condition noted.

Foundation & Structure

Cracks, settling, retaining walls, and visible structural framing.

Crawlspace

Full physical entry. Moisture, vapor barrier, insulation, and wood rot.

Interior

Walls, ceilings, floors, windows, doors, and built-in appliances.

Exterior & Grading

Siding, deck, driveway, grading, and drainage away from foundation.

Free Thermal Imaging on Every Happy Valley Inspection

In new construction, thermal imaging finds HVAC leaks, insulation gaps, and moisture behind walls that look fine from the outside. In older Happy Valley homes, it reveals crawlspace moisture and electrical anomalies that are invisible to the eye. Included at no extra charge because this climate makes it necessary, not optional.

Learn More →
EPA Radon Zone 1

Radon Testing in Happy Valley

Clackamas County carries EPA Radon Zone 1 designation, the highest risk category in the country. Radon is a colorless, odorless radioactive gas produced naturally by uranium breaking down in soil and rock. It seeps into homes through foundation cracks, crawlspace openings, and soil contact. You cannot smell or see it. The only way to know your level is to test.

Many Happy Valley buyers assume builder-installed passive radon mitigation systems make testing unnecessary. They don't. Passive systems can fail, and radon levels vary based on soil conditions, foundation type, and ventilation. Your neighbor's result doesn't predict yours. Every home needs its own test, new construction included.

We recommend radon testing on every Happy Valley inspection. If levels exceed 4 pCi/L (the EPA action level), a mitigation system typically costs $800 to $1,500. That's a reasonable item to address before closing. It's much harder to resolve after.

Learn About Radon Testing →
Radon facts for Happy Valley buyers
#2
Second-leading cause of lung cancer in the U.S. After smoking. Responsible for about 21,000 deaths per year nationally.
1 in 4
Portland metro homes test above EPA action level County designations show elevated risk. Individual testing is the only way to know.
48h
Test takes 48 hours Continuous electronic monitor placed at the start of the inspection. Digital results delivered promptly.
$150
Added to your inspection Standalone testing is $195. Add it at booking and save $45.

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No hidden fees, no surprise add-ons. Thermal imaging is included on every inspection.

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$545up to 1,000 sq ft
  • Full home inspection
  • Free thermal imaging
  • Detailed digital report
  • EPA-certified radon test
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Best Value Inspection + Radon + Mold
$740up to 1,000 sq ft
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  • Free thermal imaging
  • Detailed digital report
  • EPA-certified radon test
  • Mold air sampling & lab results
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Common Questions

Happy Valley Home Inspection FAQs

Questions buyers in Happy Valley and Clackamas County ask most before booking.

Happy Valley home inspections start at $395 for homes up to 1,000 sq ft and scale by square footage up to $795 for homes up to 5,000 sq ft. Most Happy Valley homes fall in the $545 to $625 range. Free thermal imaging is included at every price point. See full pricing at trustedhome.org/pricing.
Yes. New construction inspection is one of the most important services for Happy Valley buyers. Municipal inspectors check code compliance at specific construction phases. They don't evaluate the finished home. Our inspections in new Happy Valley builds regularly find grading that directs water toward the foundation, HVAC installation defects, improper flashing at windows and doors, and insulation gaps in attics. These are all the builder's responsibility before you close, but only if you have a written inspection report documenting them. We also offer an 11-month warranty inspection for buyers who want to catch issues before their builder warranty expires.
Yes. Clackamas County is EPA Radon Zone 1, the highest risk designation in the country. Many Happy Valley buyers assume that builder-installed mitigation systems in new homes make testing unnecessary. They don't. Passive systems can fail, and radon levels shift seasonally. The only way to know your home's level is to test. Radon testing is $150 when added to your inspection. Standalone testing is $195.
An 11-month warranty inspection documents construction defects before your builder's one-year warranty expires. Most new home builders in Happy Valley include a one-year workmanship warranty. Defects found after that window become your expense. Schedule around the 10-month mark to have enough time to submit claims before the deadline. Learn more about 11-month warranty inspections.
Most Happy Valley home inspections take 2.5 to 4 hours depending on the size, age, and condition of the home. Newer homes in Jackson Hills or the original core subdivisions tend to run toward the middle of that range. Older rural properties in Pleasant Valley or North Carver with outbuildings add scope. You are welcome to attend the entire inspection or join for the walkthrough at the end.
Thermal imaging is included at no extra charge on every inspection. Competitors in the Portland metro typically charge $150 to $250 for this as a separate add-on. Russ includes it because the infrared camera consistently finds HVAC leaks, insulation gaps, and moisture intrusion that are invisible to the naked eye. In new Happy Valley construction, it's especially useful. Learn more about thermal imaging.
The Certified Master Inspector® (CMI®) designation is the highest credential in the home inspection profession, held by the top 3% of the inspection industry. It requires a verified track record of completed inspections, education, and peer review. Russ is Oregon City's only Certified Master Inspector® with 10+ years of home inspection experience and 100+ inspectors trained, serving Happy Valley and all of Clackamas County. Learn more about the CMI® designation.
Your report is delivered through Spectora with high-resolution photos of every significant finding, severity ratings, and plain-language explanations. The priority is accuracy and detail. Most reports go out the same day. After you receive your report, call or text with any questions. Unlimited follow-up is included.
Yes. Trusted Home Inspections is veteran-owned and offers a 10% military discount for veterans, active duty, reservists, National Guard members, and military families. Mention your service when you book. See full details at trustedhome.org/military-discount.
That decision is yours and your agent's to make. During the inspection contingency period, you can negotiate a price reduction, request repairs or credits, or walk away. None of those options exist after closing. The report is your documentation. Russ is available after delivery to help you understand what is critical, what is manageable, and what requires a specialist to evaluate further.

Where We Inspect

Serving Portland Metro & Southwest Washington

Available 7 days a week within a ~35-mile radius of Portland. Not sure if we cover your area? Just call.

~35-mile radius from Portland
Available 7 days a week
Dual-licensed OR & WA
Oregon state-licensed home inspector seal
Oregon Certified OCHI Lic. #1898
Washington state-licensed home inspector seal
Washington Licensed DOL Lic. #1856

Multnomah County home inspections. Portland and the rest of Multnomah County are full of older housing stock, including 1920s craftsman bungalows in SE Portland, Pearl District lofts, and mid-century homes in NE Portland. Older homes mean knob-and-tube wiring, cast iron drains, and aging foundations. I’ve inspected hundreds of homes across Multnomah County and know exactly what to look for in each neighborhood.

Portland Gresham SE Portland NE Portland NW Portland North Portland Troutdale Bethany Sellwood Pearl District Fairview

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