Should I buy new construction or an older house in Portland?
Neither one is the safe choice. A new build and an old house carry different risks, and Oregon law hands you a different set of papers for each.
By Jake Goodson and Tony Le · Published October 19, 2026 · Updated October 19, 2026
Neither is safer: they carry different risks, and Oregon law gives a new-build buyer a written warranty offer and a ten-year outer limit on construction claims that an old-house buyer doesn't get. The Houselab Team walks both kinds of house with you and tells you what we see.
You've probably heard both sides already. "New means no problems," from one direction, and "they don't build them like they used to," from the other. No, a new house isn't problem-free. No, an old one isn't better built by default. Each one comes with its own list of things to check, and the law treats them differently.
Portland has plenty of both. Of the city's housing units, 36,259 were built in 2010 or later and 31,285 between 2000 and 2009, which is roughly one in five built since 2000. Another 82,545 were built in 1939 or earlier, roughly one in four. (Those shares are our arithmetic from the year-built table; its buckets add up to 302,723 units, a little under the 318,754 total the same page lists, and the page doesn't explain the gap.)
We lean old. A good older house has a floor plan with a point of view and materials that have already proved themselves, while a lot of new builds are drawn to fit the most units the zone allows. We'd send a new build to the buyer who wants to move in without a project and will read the warranty. We'd send an older house to the buyer who cares how the house looks and feels, and who'll do the inspection homework.
New build or older house, side by side
| The question | New build | Older house | Where it comes from | What we see |
|---|---|---|---|---|
| What protects me? | The contractor who built it has to make you a written warranty offer covering defects in materials and workmanship, and you can accept it or turn it down. A claim over the construction has to start no later than ten years after substantial completion. | Mostly what the seller tells you and what your inspector finds. The seller's disclosure rests on the seller's actual knowledge. | ORS 701.320; ORS 12.135; ORS 105.464 | New: the warranty offer is your protection, so read the document itself. Older: your inspection is your protection, so spend on it. |
| What has to be disclosed to me? | The warranty offer, before or at signing, and the contract records whether you accepted or rejected it. The seller of a never-occupied house can claim an exclusion from Oregon's disclosure form and list the building permit numbers instead, so don't count on the form's questions being answered. | The Oregon seller's disclosure form, which covers the roof, moisture, foundation, drainage, permits, tanks, lead paint, asbestos and more. For most houses built before 1978, the lead-based paint disclosure, the EPA pamphlet and a 10-day period to test. | ORS 701.320; Oregon CCB flyer (2008); ORS 105.464; EPA | New: ask for the warranty offer and the permit numbers early. Older: read the disclosure and the lead paperwork before the showing. |
| What will I deal with first? | No source we read answers this for either kind of house. It's a house-by-house read, and it's what an inspection and a walk-through are for. | Same. | none | New: walk it like a punch list. Check that the doors close, and look at the caulk lines, the trim joints and anything that looks rushed, then ask what's left to finish. Older: find out what's been changed, by whom, and whether it had a permit. |
| What do the street and lot allow? | In Portland's single-dwelling zones (R7, R5 and R2.5), a lot can hold a house, a house with one or two accessory dwelling units, a duplex, a triplex or fourplex on a big enough lot, or four to six units if half are affordable. A new "house" may be one of several units on its lot. | The same zones apply to your lot and to the lots around you. | City of Portland, residential infill options | Both: look at the lot next door. Its zone decides what can go there. |
| What can I change? | Whatever the lot and the zone allow. A house built after January 1, 2004 is outside Oregon DEQ's asbestos survey rule. | Before renovating a house built before 2004, DEQ requires an asbestos survey by an accredited inspector. An owner-occupant working inside their own single-unit home is exempt, though DEQ recommends a survey or lab samples anyway. | Oregon DEQ asbestos fact sheet (8/12/2020) | New: ask what the lot and zone allow. Older: ask about the asbestos survey before you plan the kitchen. |
| What does the sale look like? | You may be buying from the builder. In the October 2026 builder survey from the National Association of Home Builders and Wells Fargo, 65% of builders nationally reported using sales incentives and 43% reported cutting prices, with an average cut of 6%. | A seller, a disclosure form, and your inspection. | NAHB, October 19, 2026; ORS 105.464 | New: ask what the incentive is worth in dollars and whether it's already in the price. Older: the inspection is where you negotiate. |
What the law gives you on a new build
A written warranty offer. Under ORS 701.320, a contractor who builds a new home, or sells one it built, has to make a written warranty offer to the owner or the original buyer. It's a warranty "against defects in materials and workmanship for the structure or dwelling." You can accept it or refuse it. Manufactured homes are left out, and the statute doesn't say how long the warranty has to last.
What the state says about it. The Oregon Construction Contractors Board's consumer flyer says the offer has to come before or at signing, and that the contract has to say in writing whether you accepted or rejected it. The contractor decides the type, the length and the price of the warranty, so the terms are in the document you're handed. Read that document.
A ten-year outer limit. Under ORS 12.135, a lawsuit over the construction, alteration or repair of a residence has to start before the earliest of the usual deadline for that kind of claim or ten years after substantial completion. The ten-year clock starts at the earliest of three things: your written acceptance of the work, a certificate of occupancy, or you moving in or using the house. The statute was last amended in 2025.
What that doesn't tell you. A warranty offer isn't a promise about any particular problem. Whether something is covered depends on the warranty's own terms, so ask who stands behind it: the builder, or an outside warranty company. We're not lawyers, so if you have a specific claim, talk to a lawyer about it.
The first thing we check on a new build, and the one buyers tend to skip, is the paperwork trail: the certificate of occupancy date, the final inspection on every permit, and the warranty offer in writing. After that, we look at where the water goes on the lot.
What the law makes the seller of an old house tell you
The seller's disclosure. Oregon's form asks the seller about the roof, moisture, whether a house built before 1974 is bolted to its foundation, drainage, flood and landslide zones, remodeling permits, tanks, lead paint and asbestos. The answers rest on the seller's actual knowledge. It's a good list of questions, and it's only as complete as what the seller knows.
Lead. For most housing built before 1978, the seller has to disclose any known lead-based paint information before the contract, give you the EPA pamphlet and a warning statement, and allow a 10-day period to test.
Asbestos, if you renovate. DEQ's survey rule covers residential buildings built before January 1, 2004, before any renovation or demolition. That's a rule for whoever does the work, and it's worth knowing before you plan a kitchen.
We went through how to read an older house, room by room and system by system, in How to read a 1920s Craftsman before you bid.
Questions to put to a builder
- What incentive is on offer, and is it already in the price or on top of it?
- Which warranty is this: your own, or one you bought from a warranty company? What does it cover, for how long, and what does it cost?
- Who's the licensed contractor? Check the license on the Oregon Construction Contractors Board's license search at search.ccb.state.or.us/search.
- What does this lot allow, and what do the lots around it allow?
- What's the date on the certificate of occupancy? That's one of the things that can start the ten-year clock.
We'd tell a buyer to pass on any new build where the builder won't put the warranty offer in writing before you sign, where the permits haven't passed their final inspections or there's no certificate of occupancy, or where nobody can say who stands behind the warranty. Rushed finish work is the other tell.
We don't name builders in this post. If we ever point you to one, we'll tell you about any relationship we have with them first.
If the new house isn't quite finished
One loan detail worth knowing. Fannie Mae's HomeStyle Renovation loan can be used to finish the last of the work on a newly built home that's at least 90% complete, for non-structural items like flooring, cabinets, appliances, fixtures and trim. Whether that loan, or any loan, fits your situation is a conversation to have with a licensed lender.
Steps for the week you decide
- Get the builder's warranty offer in writing and read the terms: what it covers, for how long, and what it costs.
- Read the seller's disclosure on the older house, and the lead-based paint disclosure if it was built before 1978.
- Find out what the zoning allows on both lots and on the lots beside them.
- Check the builder's contractor license with the Construction Contractors Board.
- Decide on inspections for both houses. A warranty and an inspection answer different questions.
- If either house will need work after closing, ask a licensed lender how that work could be financed.
- Walk both again, using the order in How do I tell in 15 minutes whether a house deserves a second look?
More on how we work is on our new construction, buying and renovation pages, and in the FAQ. If the choice is really about where, not what, read Should I choose the neighborhood or the house in Portland? and Buying a home in Portland vs the suburbs, or start with our neighborhood guides.
Quick FAQ
Should I buy new construction or an older house in Portland?
Neither is safer. They carry different risks. Oregon law gives a new-build buyer a written warranty offer and a ten-year outer limit on construction claims, and an old-house buyer gets a seller's disclosure based on what the seller knows, plus lead-paint disclosure for most houses built before 1978. Walk both, read both sets of papers, and decide from what you find.
Is new construction cheaper to maintain than an old house?
We haven't found a source that answers that for Portland, so we won't claim it either way. A new build comes with a written warranty offer whose terms the builder sets. An older house comes with a disclosure form and whatever your inspector finds. The answer for a particular house is what an inspection is for.
What warranty do I get on a new build in Oregon?
Under ORS 701.320, the contractor has to offer you a written warranty against defects in materials and workmanship, and you can accept or refuse it. The statute doesn't set a length. The contractor decides the type, length and price, so read the terms before you sign.
How long do I have to bring a construction claim on a new house in Oregon?
Under ORS 12.135, a claim over construction of a residence has to start no later than ten years after substantial completion, and sooner if the usual deadline for that kind of claim runs out first. The clock starts at the earliest of your written acceptance, a certificate of occupancy, or moving in. The statute was last amended in 2025, so for a specific claim, talk to a lawyer.
Can a loan cover finishing work on a new house?
Fannie Mae's HomeStyle Renovation loan can be used to finish a newly built home that's at least 90% complete, for non-structural items like flooring, cabinets, appliances, fixtures and trim. A licensed lender can tell you whether it fits.
Choosing between a new build and an old house?
Send us both, the new one and the old one, and we'll tell you what we see in each. Get in touch.
The Houselab Team @ Like Kind Realty
Sources
All retrieved October 19, 2026.
- —Greater Portland Inc, Portland regional profile, housing units by year built (ESRI data, September 9, 2026): https://greaterportlandinc.com/research-center/regional-profile/p/v/data/item/1104/portland-or
- —ORS 701.320, new residential structure warranty offer: https://oregon.public.law/statutes/ors_701.320
- —Oregon Construction Contractors Board, New Home Warranties consumer flyer (dated 7/1/08 in its file): https://www.oregon.gov/ccb/Documents/New%20Home%20warranties.pdf
- —Oregon Construction Contractors Board, license search: http://search.ccb.state.or.us/search
- —ORS 12.135, time limit for construction claims (current text, last amended 2025): https://www.oregonlegislature.gov/bills_laws/ors/ors012.html
- —NAHB/Wells Fargo Housing Market Index, October 19, 2026: https://www.nahb.org/news-and-economics/press-releases/2026/10/builder-sentiment-falls-on-rising-rates
- —Fannie Mae Selling Guide B5-3.2-01, HomeStyle Renovation Mortgages (December 10, 2025): https://selling-guide.fanniemae.com/sel/b5-3.2-01/homestyle-renovation-mortgages
- —U.S. EPA, Lead-Based Paint Disclosure Rule (Section 1018 of Title X), page updated December 4, 2025: https://www.epa.gov/lead/lead-based-paint-disclosure-rule-section-1018-title-x
- —Oregon DEQ, asbestos survey fact sheet (last updated August 12, 2020): https://www.oregon.gov/deq/FilterDocs/asb-SurveyFS.pdf
- —Oregon seller's property disclosure form, ORS 105.464 (including the exclusion for the first sale of a dwelling never occupied): https://oregon.public.law/statutes/ors_105.464
- —City of Portland, residential infill options (no date shown): https://www.portland.gov/ppd/residential-infill-options
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