22 years of crafting distinctive homes that reflect your lifestyle and the beauty of the Pacific Northwest.
Building a custom home is one of the most significant investments you'll ever make—and it should be as unique as you are. At Cornerstone Builders, we've been helping Portland families, professionals, and retirees bring their visions to life for over two decades. Our custom home building service goes beyond construction; we partner with you from the first sketch to the final walkthrough, ensuring every detail aligns with your needs, budget, and the natural contours of your land. Many homeowners worry about cost overruns, delays, or losing their personal touch in a sea of decisions. We solve those concerns through transparent communication, fixed-price contracts, and a dedicated project manager who keeps your priorities front and center. Whether you're looking for a modern farmhouse in the West Hills, a craftsman bungalow in Sellwood, or a sustainable home near the Willamette River, our team designs and builds homes that stand the test of time. Our local knowledge of Portland's building codes, soil conditions, and climate means fewer surprises and a smoother process. With Cornerstone Builders, you're not just hiring a contractor—you're gaining a partner committed to building trust, one foundation at a time.
We integrate architects, designers, and builders from day one, so your home's design is practical, beautiful, and cost-effective from the start.
No hidden fees or change-order surprises. Our fixed-price model gives you peace of mind and a clear budget from the moment you sign.
As a Portland builder, we know local building codes, permit timelines, and top subcontractors—saving you time, money, and headaches.
We use only durable, regionally-sourced materials and employ skilled tradespeople who take pride in every nail, joint, and finish.
Your custom home can include solar-ready design, high-performance insulation, and low-VOC materials—good for the planet and your utility bills.
You get one point of contact who updates you weekly, answers questions within 24 hours, and ensures your vision stays on track.
We visit your property, discuss your lifestyle goals, and evaluate site conditions to create a feasibility study and preliminary budget.
Our in-house designers craft architectural plans tailored to your preferences while we handle all permit applications and approvals.
With your finalized plans, we break ground, managing every trade and inspection. You'll see progress through regular photos and site visits.
We complete punch-list items, provide a home manual, and walk you through every system so you feel confident in your new home.
The cost of custom home building in Portland typically ranges from $300 to $600 per square foot, depending on factors like lot size, site preparation, architectural complexity, and material choices. For a 2,500-square-foot home, that translates to $750,000–$1.5 million. At Cornerstone Builders, we believe in transparency—your initial consultation includes a detailed budget breakdown with realistic allowances for fixtures, finishes, and landscaping. Our fixed-price contract locks in that number, protecting you from market fluctuations. While the upfront investment may be higher than buying an existing home, you gain a property built to your exact specifications with superior energy efficiency and lower long-term maintenance costs. We also offer payment milestones aligned with construction phases, so you never pay for work not yet completed. Reach out for a personalized quote based on your land and wish list.
For an exact quote tailored to your property, call ☎ for a free estimate.
“Cornerstone Builders turned our dream into a stunning reality. From design to move-in, they communicated every step and delivered exceptional quality. Our custom home is everything we hoped for.”
Schedule a no-obligation consultation with our team. We'll discuss your vision, evaluate your lot, and provide a realistic roadmap—including timeline and budget—so you can start your custom home journey with confidence.
Licensed & insured. Free estimates, no obligation.