Skip to main content Skip to content Primary suites, bump-outs, second stories, and great rooms that match the home you already love. Woodland Construction Group designs and builds additions across Tigard, from Bull Mountain’s larger lots to central Tigard ranches, with one accountable team from first sketch to final walkthrough.
Planning a home addition in Tigard, Oregon? Plenty of Tigard families love their street and their schools but have outgrown a 1970s or 1980s floor plan. An addition adds the square footage you need, a primary suite, a great room, a home office, without leaving the neighborhood you chose.
The work touches structure, roofline, siding, and systems, so it has to be planned to match the existing home and meet setback and lot-coverage rules. Because the scope spans every trade and strict code, the contractor you choose controls the outcome.
The right partner ties the new space seamlessly into the old, protects your budget, holds your schedule, and delivers an addition that looks like it was always there. That is what we do, on every Tigard project.
A home addition in Tigard typically runs $300 to $600 per square foot, with total project investments landing between $50,000 and $300,000+ depending on size, whether it is single or second story, and finish level.
Adding square footage to a home in a strong Tigard market, anchored by Bull Mountain and Summerfield, builds lasting value and is often more practical than buying up and paying to move, especially for families attached to their lot and location.
Construction & design experience in the Portland metro
Homes transformed across Tigard & the west side
Across Google, Houzz & Yelp reviews
Craftsmanship warranty on every project
An addition gives you the space you need without the cost, taxes, and disruption of moving up. In a strong Tigard market, well-built square footage returns lasting value, and it lets families keep the neighborhood, schools, and lot they already love.
The 2026 addition is about seamless integration. A new primary suite or great room should match the existing roofline, siding, and trim so the house reads as one design, not a bolt-on. On Bull Mountain’s larger lots there is room to expand out, while tighter central Tigard lots often grow up with a second story.
Done right, the addition solves the space problem for good and raises the ceiling on your home’s value. If a full reconfiguration makes more sense, compare it with our Tigard whole-home renovation page.
Woodland Construction Group – 18 Years Experience – Serving Tigard, Oregon
Our licensed team designs and builds additions across Tigard and Washington County, tying new primary suites, great rooms, and second stories seamlessly into existing homes while navigating local setback and lot-coverage rules.
A well-built addition adds the square footage a growing Tigard family needs while returning lasting value, often a smarter move than buying up and paying to relocate.
Tigard’s housing tells a clear story. The city’s median home was built in 1988, and many families have outgrown the 1970s and 1980s ranches and split-levels across Metzger, the Cook Park area, and Summerlake. An addition is how they stay put and still get the space a modern household needs.
Lot type drives the design. Bull Mountain’s larger custom-home parcels have room to bump out or add a full primary wing, while flatter, tighter central Tigard lots often grow up with a second story to preserve yard. Either way, setbacks, lot coverage, and height limits shape what is possible before we draw a line.
One local detail matters before anything is built: permits. Inside the city limits, your addition is permitted through the City of Tigard. Many Bull Mountain addresses are unincorporated and run through Washington County instead, with different rules. We confirm the right jurisdiction for your address up front, so the design fits the code from day one.
Six addition types cover almost everything we build in Tigard. Each one is engineered to match the existing home and meet local setback and lot-coverage rules.
New primary bedrooms with walk-in closets and spa baths, sized and placed to match the home and give the owners real separation.
Targeted expansions that enlarge a kitchen, dining area, or living room, adding function without the cost of a full wing.
Adding a full upper level on tighter Tigard lots, engineered for the existing foundation and framing to preserve yard space.
Open gathering spaces with volume and light, connected to the existing floor plan so the house lives as one.
Light-filled bonus rooms and dedicated work-from-home space, insulated and conditioned for year-round Tualatin Valley use.
New roof, siding, and trim matched to the existing home, so the addition reads as original construction, not an afterthought.
How We Work
One team, one contract, from the first measurement to the final walkthrough, with no handoffs between designer, builder, and trades: design and 3D layouts, material selection, permitting and inspections, careful demolition, licensed construction, and a final walkthrough, all backed by our 1-year craftsmanship warranty.
See our full design-build processA look at how we add primary suites, great rooms, and second stories that match the home and the neighborhood across Tigard.
Walk through every line that shapes the number, from foundation and framing to roofline match, systems, and finishes, with a calculator built on real Portland-metro project data.
Engaging with Woodland for our home extension was a great decision. They were attentive to our vision, offered valuable insights, and completed the project on time. Their commitment to quality and craftsmanship is truly impressive.
A huge thank you to Woodland Construction Group for the beautiful job they did on our home extension. High-quality craftsmanship throughout.
Woodland Construction Group is an expert in their field. We are very satisfied with their work.
Timelines, permits, setbacks, cost, and what to expect in 2026. If your question is not here, call us. We would rather answer it directly.
A typical Tigard addition takes 3 to 6 months from demolition to final walkthrough. A single-room bump-out can finish in 2 to 3 months, while a primary-suite wing or second-story addition runs 5 to 7 months. We set a detailed schedule during design and hold to it through construction.
In Tigard, additions run $300 to $600 per square foot, or roughly $50,000 to $300,000+ total depending on size, single versus second story, and finish level. Second-story additions cost more per foot because of structural work. You get an itemized estimate during the consultation phase.
Yes. Additions require building permits and must meet setback, lot-coverage, and height rules. Inside the city limits, permits come from the City of Tigard Building Division. Many Bull Mountain addresses are unincorporated and run through Washington County Building Services, with different standards. We confirm the jurisdiction and handle every application and inspection.
It depends on your lot. Bull Mountain’s larger parcels usually have room to bump out or add a full wing. Tighter central Tigard lots often add a second story to preserve yard and stay within lot-coverage limits. We assess setbacks, foundation capacity, and your goals to recommend the right direction.
Usually, yes. Because an addition is built largely outside the existing walls, most Tigard families stay in the home through much of the project. We seal off the connection point and only open the existing wall or roof near the end, keeping disruption to a minimum.
Yes, for families who love their location. Adding square footage in a strong market anchored by Bull Mountain and Summerfield builds lasting value and is often more practical than buying up and paying to move. A well-matched addition that reads as original construction protects that value at resale.
Family-owned and based in Northwest Portland, we build additions across every Tigard neighborhood and the nearby west-side communities.
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Book a free in-home consultation. We will assess the space, talk through layout and budget, and give you an itemized estimate, with no pressure and no handoffs.
