About Missing Middles
The Missing Middles Design Competition is a national initiative aiming at creating high-quality, scalable prototypes for multi-unit, small-scale housing in Sacramento, California. Launching in response to the city's groundbreaking, first-in-California, Missing Middle Housing Ordinance, the competition leverages Sacramento’s progressive policies as a real-world testing ground. The project will produce an open-source pattern book of housing designs, detailed feasibility studies, and a public symposium. It will deliver build-ready plans and a digital policy toolkit to speed up the construction of diverse, attainable housing. The initiative is designed as a model for other cities nationwide.
About the Team
Porphol and Rob are the duo behind Middle Kingdom Holdings, a growing development and design venture rooted in purpose, community, and progressive thinking. With a shared passion for housing equity, thoughtful design, and resilient neighborhoods, they created this competition to reimagine the possibilities of single-family zoning and spotlight innovative solutions to the missing middle housing crisis.
Porphol, a licensed real estate agent with a keen eye for opportunity and community dynamics, brings deep market insight and a grounded understanding of how policy, planning, and people intersect.
Rob, a licensed landscape architect and architectural designer, draws from years of experience across public and private sectors—blending technical expertise, environmental stewardship, and creative problem-solving.
Together, they believe good design isn't a luxury—it’s a necessity for inclusive, sustainable, and thriving communities. This competition reflects their belief in empowering emerging voices, fostering collaboration, and sparking new conversations at the intersection of design, equity, and development.