Portland homes are character-rich and complicated — Craftsman bungalows, mid-century ranches, older plumbing, knob-and-tube surprises. Serden Group handles the whole job: kitchens, bathrooms, additions, structural work, finishes — design and construction under one contract, one OR-licensed company (CCB #239429), one project manager. Serving Portland and Multnomah County since 2015.
Portland homes have history — and history means layers. Older electrical, outdated layouts, permits that need City of Portland sign-off. We plan for what is likely hiding behind the walls before demolition, not after. One project manager from design to final inspection, with our in-house crew and licensed trade partners on one schedule.
Portland homeowners deserve one OR-licensed contractor who handles everything — design, demolition, plumbing, electrical, cabinetry, tile, and finishes. We pull the permits ourselves, coordinate every inspection, and keep one project manager accountable for the whole job. If the envelope needs work too, see exterior remodeling in Portland.
Interior & exterior updates, layout modifications, flooring & finishes, whole-home transformations.
Custom layouts, cabinets & vanities, tile & countertops, fixtures & finishes.
Room additions, expanded living spaces, garage conversions, seamless integration.
Framing & drywall, electrical & plumbing, painting & trim work, final detailing.
We visit your Portland home, walk every room, and listen. We talk through your goals, budget, and the specific quirks of your house — older layout, permit history, what you've always wanted to change. No generic estimates. An honest plan built around your home.
We map out the scope, prepare and submit the permit applications, and help you choose finishes and fixtures that fit your home's character — whether it's a Craftsman bungalow in SE Portland or a mid-century ranch in Lake Oswego.
Our in-house crew and licensed, vetted trade partners work from one schedule, from the first demo swing to the final city inspection. Daily updates, one point of contact. We don't disappear between phases — we're on-site, accountable, and done when we said we'd be done.
Why Homeowners Choose Serden
Design-build means one company is responsible for the design, the selections, the permits and the construction, under one contract. For a multi-room remodel in an older Portland house, that matters most where design decisions and construction realities collide. Here is how it works, and what decides the cost and the calendar.
In the traditional route you hire a designer or architect, finish the drawings, then ask contractors to bid. Design-build puts the builder in the room while the plan is still changing, so you hear what a moved wall or a new beam costs before it is drawn into the set. The tradeoff is that you choose the builder earlier — so ask how design fees are charged and when the construction price becomes fixed.
A whole-home project usually combines several of our services: kitchens, bathrooms, interior layout and finish work, additions, ADUs and exterior work. Our in-house crew handles the build, with licensed, vetted trade partners for specialties such as electrical and plumbing, and engineers where the structure changes — all scheduled by one project manager.
Finish level matters, but the big swings come from the plan: removing or moving walls (a bearing wall needs an engineered beam), relocating kitchens and bathrooms away from existing drains, and upgrading systems that an older house has outgrown — electrical service, panel capacity, supply lines, ventilation and insulation. We open the most likely problem areas during planning, where we can, so fewer of them are discovered mid-build.
Three things set most timelines: how quickly design and selections are settled, permit review, and long-lead items such as cabinets and windows. Structural or layout changes inside Portland need building permits from Portland Permitting & Development, alongside plumbing, electrical and mechanical permits. Ordering long-lead items before demolition is the most effective way to shorten the time the house is torn up.
Many homeowners stay put. That usually means phasing so one bathroom and a makeshift kitchen keep working, sealing off work zones for dust, and accepting a longer schedule. In homes built before 1978, demolition that disturbs paint has to follow the EPA's lead-safe rules, which is one more reason some families move out for the heaviest phase.
Doing everything at once usually costs less overall — one demolition, one set of rough-ins, one round of permits — but it needs the full budget up front. Phasing spreads the cost, and works best when the plan is designed as a whole first, so the kitchen you build this year does not have to be reopened for the bathroom wiring next year.
Portland's former Bureau of Development Services now operates as Portland Permitting & Development. Homes outside city limits — Lake Oswego, Beaverton, Tigard, Milwaukie and others — are permitted by their own city, and we confirm current requirements for each address.
From Sellwood and Hawthorne to Hillsboro and Lake Oswego — Serden Group remodels homes across Portland neighborhoods and nearby cities. We know Portland Permitting & Development requirements and the specific challenges of Pacific Northwest housing stock.
Free in-home consultation — serving Portland, OR & Multnomah County
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Questions? Call (360) 836-7775
Portland homes vary widely — a 1940s bungalow in SE and a mid-century in Lake Oswego have very different scopes. Here's an honest range for typical scopes in the Portland area.
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