Fold Journal
Notes on Portland Home Design
Read clear-eyed notes on what an ADU can add to a Portland lot, what a feasibility study reveals, and passive house in plain language.

September 23, 2026 · 3 min read
Passive house design explained in plain words
Passive-house design uses a well-insulated, carefully detailed building envelope and controlled ventilation to reduce energy demand and improve comfort. This guide explains the main ideas and the questions…
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September 23, 2026 · 3 min read
What a home architecture feasibility study tells you
A feasibility study is an early check on what your lot and budget may support before you commit to a full design. Here’s what to bring, what the…
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September 23, 2026 · 3 min read
What an ADU can add to a Portland lot
An accessory dwelling unit can create room for family, rental income, or a more flexible household, but what fits depends on the lot and current rules. Learn what…
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September 23, 2026 · 3 min read
Passive house explained for a Portland home project
Passive house is an approach to building that focuses on comfort, a well-insulated and airtight enclosure, and carefully managed ventilation. Learn what those choices mean for a Portland…
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September 23, 2026 · 3 min read
What a residential feasibility study tells you before design
A feasibility study helps clarify what a lot and budget may support before a full design begins. Here is what Fold Architecture’s paid two-hour study covers, what to…
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September 23, 2026 · 3 min read
What an ADU can add to a Portland lot
An accessory dwelling unit can create a separate place to live, work, or host family, but what fits depends on the lot and the budget. Learn which site…
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September 23, 2026 · 3 min read
Passive house explained for homes and renovations
Passive house is an approach to making buildings comfortable and energy efficient through careful design and construction. This plain-words guide explains the main ideas and what they can…
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September 23, 2026 · 3 min read
What a Portland ADU feasibility study tells you
A feasibility study helps turn an ADU idea into a clearer picture of what a particular lot and budget may support. Here’s what the study covers, what to…
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September 23, 2026 · 3 min read
What an ADU can add to a Portland lot
An accessory dwelling unit can add a place to live without changing the character of a lot. Learn how to think through its purpose, placement, privacy, and practical…
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