
RICH HOSTELLEY
ARCHITECTURE
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71 ADU
Location
Pasadena, California
Role
Architect of Record
Project Designer
Construction Documentation
Construction Administration
Project type
Accessory Dwelling Unit (ADU)
Construction Cost
$350K
Date
2025
Scope
New ADU
Tucked into a quiet residential neighborhood in Pasadena, California, this 750-square-foot Accessory Dwelling Unit (ADU) was thoughtfully designed to maximize space, light, and livability within a compact footprint. Serving as a flexible extension of the main residence, the ADU provides a fully self-contained living environment ideal for guests, extended family, or rental use.
The design embraces a modern yet contextual aesthetic, with a key feature of the ADU is its open loft space, which sits above the main living area and offers flexible use as a sleeping loft, home office, or creative studio. This vertical strategy not only adds functional square footage but also enhances the sense of openness within the compact layout.
Careful attention was paid to natural light and cross-ventilation, with strategically placed windows and clerestories that invite sunlight while maintaining privacy. The main level includes a full kitchen, bathroom, laundry nook, and a combined living/dining area that opens directly onto a small private patio—creating a seamless indoor-outdoor connection that expands the living experience.













































