Do I need a building permit for a Growing Dome in Oregon?

Permit requirements vary by county and city. Size thresholds, use classifications, and snow load requirements differ across the state, so call your building department early and tell them the footprint and that the structure is a greenhouse. We supply construction drawings and specifications for permit applications on request. Start with our building department guide.

Does a greenhouse make sense in western Oregon's wet winters?

Yes, and damp is the thing to manage. Automated vents keep air exchanging on warm days, routine airflow keeps condensation in check, and our greenhouse mold guide covers the housekeeping. One central coast owner runs a full winter garden with a couple of grow lights carrying November through January.

Do you deliver and install in Oregon?

Every kit ships freight from our factory in Pagosa Springs, Colorado. You can build the dome yourself with the installation manual, or have it professionally installed. The shipping page and the installation options page cover both paths.

Can I grow year-round in Oregon?

Owners do; one central coast dome ripens tomatoes through winter with lemon and banana trees over the koi pond. What January looks like depends on dome size and site. The heating and cooling guide walks through the numbers, and the climate calculator gives recommendations for your ZIP code.

Greenhouses for Sale in Oregon

Growing Spaces has built the Growing Dome® greenhouse kit in Pagosa Springs, Colorado for more than 35 years, and more than 60 of them are installed across Oregon. The state splits the same way Washington does: wet, dark winters on the coast and in the valleys, colder and drier east of the Cascades.

One central coast dome ripens tomatoes through winter, with lemon and banana trees over the koi pond.

Oregon Growing dome on the edge of mixed forest

60+

Growing Domes installed in Oregon, as of July 2026.

Designed for wet winters

Built at 7,500 feet in Colorado, ready for rain on one side of the Cascades and snow on the other.

Built for Oregon conditions

Coastal and valley Oregon winters are long on rain and short on light. East of the Cascades the problem flips to cold, snow, and dry summer heat.

The Growing Dome runs year-round in both. The glazed dome takes in light from every direction through short winter days, automated vents keep air moving so damp does not settle, and the above-ground water tank stores what heat the day gives and releases it overnight. For Cascade and eastern Oregon sites, the frame is the one we build for Rocky Mountain snow: the kit can be built to withstand loads of 120 pounds per square foot and more with slight modifications.

The design pages cover each system in depth: passive solar design, thermal mass, the undersoil system, and automated vents. For structural detail, see the weather resistant greenhouse kit page.

Winter tomatoes on the central coast

Gabrielle and Urs built a 22 foot dome on the central Oregon coast, where rain and cloud are the winter default. Tomatoes ripen through winter alongside lemon and banana trees and a koi pond, with a couple of grow lights carrying the darkest months.

Read the Oregon coast story.

Banana plant thriving in Oregon Growing Dome

A diversified farm near Ashland

La Terra Vita, a community farm near Ashland, put a 33 foot propagation dome at 4,700 feet on a deliberately challenging site, alongside an orchard, herb gardens, a mushroom barn, and bee hives, to show what a small diversified farm can do.

Read the La Terra Vita story.

33 foot Growing Dome on the Southern Oregon farm

A school dome full of flowers in The Dalles

Colonel Wright Elementary in The Dalles has kept its 26 foot dome full of flowers for years. Winter lunch among the blooms is a classroom reward, and flower sales fund school projects.

Read the Colonel Wright story. More Oregon stories live in the Oregon greenhouses archive.

kids watering flowers in an Oregon school Growing Dome

Permits, weather, and logistics in Oregon

The questions Oregon buyers ask first.

dark grey clouds with lightning bolts striking across the sky above three growing dome greenhouses

Choosing your dome

Growing Domes come in six sizes, 15 to 42 feet across. The right one depends on what you want to grow, how much of the year you want to grow it, and your site. The greenhouse guide walks through the choice, the shop lists current kit pricing, and the comparison pages set the dome against other structures, starting with the gothic arch.

Plan an Oregon greenhouse with an advisor

Tell us your county, site, and what you want to grow. We will help you size the dome, plan the site, and sort out permits and delivery before you commit to anything.

Talk with an advisor

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