You've heard of Hillsboro, Tigard, and Happy Valley, but the paperwork underneath them is what's changing: South Hillsboro's 1,400-acre annexation for 8,000+ homes anchored by Reed's Crossing, Tigard Triangle's 550-acre tax-increment financing district funding real sewer and infrastructure work, and Happy Valley's last large-scale subdivision (Foxwood) signaling the end of its new-construction land. Different timelines, but all three are cheaper now than what's coming.
This isn't a list of secret suburbs you've never heard of, you've already heard of Hillsboro, Tigard, and Happy Valley. What most people haven't looked at is the paperwork underneath them: an annexation of 1,400 acres, a tax district rebuilding 550 acres, and a suburb genuinely running out of room. Three reasons, three timelines, and all three are cheaper right now than what's coming.
Hillsboro: the most room left on price
Hillsboro is the cheapest of the three, and it's not close. Median home prices run roughly $492,000 up to $573,000, depending on the source and which part of the city. The story worth knowing is South Hillsboro, a roughly 1,400-acre area the city annexed specifically to build out a master plan for over 8,000 homes plus a full mixed-use town center. The centerpiece, Reed's Crossing, just broke ground after 15 years of planning, and it's already on track to be one of the largest mixed-use master-planned communities in Oregon by density: eventually 2,000 single-family homes and over 1,600 multi-family units with its own schools, parks, and a wellness center. Builders are projecting well over 150 new home sales in that one community in 2026 alone, and it's not just housing: Intel committed to more than $36 billion in new investment at its Hillsboro campus, backed in part by CHIPS Act funding tied to thousands of new manufacturing and construction jobs.
The honest catch: parts of this are still very much a construction zone, and school and road infrastructure has real catching up to do for 8,000 new homes. That's exactly why it's first on this list, not last, the price hasn't caught up to the scale of what's actually being built here.
Tigard: real infrastructure money, right now
Tigard sits in the middle price-wise, with median home values running roughly $617,000 to $650,000. The reason it's on this list isn't price alone, it's a specific 550-acre chunk called the Tigard Triangle, sitting where Highway 217, I-5, and 99W all meet. For years this has been mostly underused land: no real sewer system, no sidewalks connecting anything, no parks. The city set up a tax increment financing district specifically to fund fixing that, and it's not a plan anymore, it's happening now: sewer and street alignment work has begun, with a chunk scheduled to wrap by the end of 2026. There's already a real building on the ground, a five-story, roughly 150-unit mixed-use development called The Steward, residential over ground-floor commercial.
Infrastructure money like this doesn't get spent evenly across a city, it gets targeted block by block, which means some streets inside the Triangle boundary will appreciate faster than streets two blocks outside it that look identical. You've probably heard Tigard mentioned alongside a Southwest Corridor MAX light rail extension toward Tualatin and downtown Portland. That project is real and being designed, but the local funding measure that would have paid for it failed a few years back and is on hold. The Tigard Triangle redevelopment is happening regardless, it's already funded through the city's own tax increment district, not the train. The light rail would just be the cherry on top if it ever gets built.
Happy Valley: a closing window, not an open one
Happy Valley is the most expensive of the three, with median home values running roughly $680,000 to $725,000, up about 7% year over year. It's also the fastest-growing city in the entire state, population up 20% since 2020 and still adding residents faster than almost anywhere else in Oregon. Newer large-scale subdivisions have been the engine of that growth for over a decade, master-planned communities built one after another. But the newest one, Foxwood, is being described as the final subdivision of scale in the heart of the city, meaning the land for big new master-planned communities inside Happy Valley is running out. Once that inventory is gone, it's gone, the city won't get bigger, it'll get more expensive and more selective about what happens to whatever land is left.
Hillsboro and Tigard are stories about what's coming. Happy Valley is a story about a window that's already closing on new construction specifically, resales will still trade, but the option to buy into a brand-new master-planned community there has a real, countable amount of land left.
How to rank the urgency
Hillsboro has the most time left and the lowest buy-in, Reed's Crossing won't build out in a year, and the price hasn't caught up to the scale of what's coming. Tigard is the middle ground, real infrastructure money is already being spent right now, whether or not the light rail ever shows up, so the growth case doesn't depend on a train that isn't funded yet. Happy Valley has the least amount of time on the new-construction side specifically, it's a story about scarcity, not potential. None of these are guaranteed on a schedule, but the money and construction crews are pointed at all three right now.
Frequently asked questions
What is South Hillsboro and Reed's Crossing?
South Hillsboro is a roughly 1,400-acre area the city annexed for a master plan of over 8,000 homes plus a mixed-use town center, anchored by the Reed's Crossing development that broke ground after 15 years of planning. It's projected to become one of the largest mixed-use master-planned communities in Oregon by density, with builders projecting well over 150 new home sales there in 2026 alone.
What is the Tigard Triangle?
It's a roughly 550-acre area in Tigard bounded by Highway 217, I-5, and 99W that's historically been underused, with no real sewer system, sidewalks, or parks. The city set up a tax increment financing district to fund fixing that, and infrastructure work (sewer, street alignment) is underway now, with a chunk scheduled to wrap by the end of 2026. A five-story, roughly 150-unit mixed-use development called The Steward is already under construction there.
Is the Tigard light rail extension actually happening?
It's real and being designed, but the local funding measure that would have paid for it failed a few years back and is on hold until new funding is identified. The Tigard Triangle redevelopment itself is already funded through the city's tax increment district, independent of whether the light rail ever gets built.
Why is Happy Valley considered a closing window?
Happy Valley is the fastest-growing city in Oregon, population up 20% since 2020, driven by a decade of large master-planned subdivisions. Its newest subdivision, Foxwood, is being described as the final subdivision of scale in the heart of the city, meaning the land available for big new master-planned communities inside Happy Valley is running out.
Which of these three suburbs has the most affordable entry point?
Hillsboro, and it's not close. Median home prices there run roughly $492,000 to $573,000, compared to Tigard's $617,000–$650,000 and Happy Valley's $680,000–$725,000 (up roughly 7% year over year).
Deeper local breakdowns: Hillsboro · Tigard · Happy Valley. All area guides →
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