Case studies

Long-form project work, told the way it actually went.

Each one of these is a composite of the kind of work we do every week: ADU conversions, storm-damage rebuilds, structural foundation work, exterior renovations, roof replacements, decks, and concrete flatwork on Portland-area homes. Materials, schedules, complications, outcomes — written honestly.

Warm finished interior of a converted ADU — Green O Construction

Interior · ADU Conversion

Mosaic Arts Loft

An attached garage and unfinished bonus space reframed into a permitted, code-compliant detached-use ADU with a working artist's studio above.

Beaverton, OR16 weeks on site (4 weeks design + permit)2025

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Replaced architectural shingle roof after storm damage — Green O Construction

Storm Restoration · Full Envelope Rebuild

Storm-Ready Roof

A 2,400 sq ft Hillsboro roof and envelope rebuild after a derecho-class wind event tore off forty squares of shingles in a single night.

Hillsboro, OR11 days on site (insurance scope), 4 weeks insurance approval2026

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Foundation excavation and structural repair on 1920s Portland bungalow

Structural · Foundation Repair

Historic Foundation Reset

A 1920s Portland bungalow brought back into level after a century of cripple-wall settlement, with new shear panels, a seismic retrofit, and a foundation that will outlast the people who paid for it.

Portland (Northeast), OR9 weeks on site2025

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Completed whole-home exterior renovation with new siding - Green O Construction

Exterior · Siding + Trim

Whole-Exterior Renovation

A tired single-family exterior stripped to the sheathing and rebuilt as a system: weather barrier, fiber cement siding, and fascia and trim replaced where rot had been hiding for years.

Hillsboro, ORAbout 4 weeks on siteSpring 2025

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Shingle roof replacement in progress on a Portland home - Green O Construction

Roofing · Storm Recovery

Storm-Recovery Roof Replacement

A Portland roof that lost shingles to a winter windstorm, torn off to the deck and rebuilt as a complete system: underlayment, flashings, balanced ventilation, and architectural shingles installed to manufacturer spec.

Portland, ORUnder a week on siteSpring 2025

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Custom wood deck built by Green O Construction

Outdoor Living · Deck + Covered Patio

Custom Deck + Covered Patio

A backyard rebuilt for year-round Oregon use: engineered footings, a custom deck with composite railing, stairs that land where the yard actually flows, and a covered patio that keeps the rain honest.

Tigard, ORAbout 3 weeks on siteSummer 2025

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Finished concrete driveway replacement - Green O Construction

Concrete · Driveway + Flatwork

Driveway + Walkway Replacement

A cracked, settled driveway demoed and re-poured on a properly compacted base, with a new walkway and a control-joint layout that will keep the slab honest for decades.

Beaverton, ORAbout a week on site, plus cure timeSpring 2025

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Composite case studies based on representative Green O projects. Client details anonymized. More long-form work is in production — call (971) 226-7751 if you want to talk through a project that resembles one of these.