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ADU Types
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ADU Types
Design
Regulations
Guides

ADU Types
Design
Regulations
Guides

A Highlands Ranch garage-top ADU, one year later

August 17, 2026
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An independent guide to building accessory dwelling units across Denver and the Colorado Front Range.

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303 ADU. Editorially independent. Not a builder.

DENVER, CO · 39.7392° N, 104.9903° W