Cali Dream Construction
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ADUs and Guest Houses in Rancho Santa Fe: Casita Design, Site Planning, and a Stress‑Free Build Process

By Cali Dream Construction | January 09, 2026 | Rancho Santa Fe

Meta Title: Rancho Santa Fe ADU & Guest House | Design + Planning Guide Meta Description: Thinking about an ADU or guest house in Rancho Santa Fe? Explore detached vs garage conversion options, layout ideas, privacy planning, and a design-build roadmap to build with confidence. URL Slug: /blog/adu-guest-house-guide-rancho-santa-fe Primary Keyword: ADU Rancho Santa Fe Estimated Reading Time: 9–11 minutes

In Rancho Santa Fe, an ADU isn’t just an “extra unit.” It can be a guest casita for visiting family, a private multi‑generational suite, a home office away from the main house, or a flexible space that grows with your lifestyle.

The best ADUs feel like they were always part of the property—architecturally consistent, thoughtfully placed, and built with the same quality as the main home.

This guide walks you through the key ADU decisions: detached vs garage conversion, layout planning, privacy, finishes, and the construction process.

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