The Monolithic Dome Institute (MDI) advances the construction of the Monolithic Dome — a super insulated, steel reinforced, thin-shell concrete structure. Built worldwide for residential, commercial, and industrial uses the Monolithic Dome is beautiful, energy efficient, green, and strong.

The house with an open ground floor and living space above.
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Back in 2020, Jo King listed her Hawaiian home for sale. Needless to say, selling a home during a pandemic proved more than a little challenging. Instead, she pulled it from the market. Now she thinks it’s time to try again. Her Monolithic Dome home is in one of the most beautiful settings we have ever seen — on the island of Kauai. … read more

Cutaway diagram of finished Monolithic Dome
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David, Barry and Randy South switched on the inflator fans to construct the first Monolithic Dome in April 1976. It was for a potato storage in Shelley, Idaho — 105-feet diameter by 35-feet tall, which was pretty ambitious for their first dome. It changed their lives. They patented the process and started changing the world, one dome at a time.

Today, there are Monolithic Domes throughout the United States and the world — from the Arctic to the tropics — used for schools, storages, churches, homes, gymnasiums, safe rooms and much more. There are domes as small as 8-feet to over 340-feet diameter with engineering for even larger structures. … read more

Aerial view of the Avalon Multipurpose Center.

Twenty years ago, the school board in Avalon, Texas, broke ground on a new Monolithic Dome gymnasium. It would be more than just a place for playing ball, it became a classroom, concert hall, community center, and — when necessary — a storm shelter. No wonder it’s called the Avalon Multipurpose Center. … read more

Aerial view of South Sawmill Lodge in Island Park, Idaho.
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It’s time to say goodbye to the South Sawmill Lodge. Randy South’s family of South Industries started the 90-foot diameter dome in 2009 on the old family homestead in Island Park, Idaho. Over the next four years, the family squeezed in time to finish the dome which became a lodge and reunion center rented out to dozens of families over the years. The lodge sold this spring. … read more

Monolithic Dome Builders Workshop Alumni.

It’s back! After a year and a half hiatus, the Monolithic Dome Builders Workshop resumes again in September 2021. Coronavirus restrictions are lifting. Travel is returning. We can finally gather to teach, discuss, and build another Monolithic Dome. … read more