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Business Details
35 Years
experience
Custom Home Architecture in San Francisco
Michael Mullin Architect has been dedicated to creating innovative architectural solutions in the San Francisco Bay Area since November 1991. Our approach begins with active listening to understand client needs, translating these insights into functional, aesthetically resonant designs. With deep expertise in zoning regulations and community planning processes, we specialize in navigating complex approval systems to bring projects to life. Our practice emphasizes sustainable design principles, balancing ecological responsibility with contextual integration. We prioritize connecting homes to their environments, often reimagining existing structures through subtraction and reconfiguration.

Our team's experience in city planning and permit expediting ensures efficient project execution. We serve diverse neighborhoods including San Francisco, Oakland, and Marin County, maintaining a commitment to enhancing both individual spaces and broader communities. Our work has been featured in prominent publications such as Sunset Magazine and San Francisco Chronicle. Through personalized service and technical expertise, we deliver custom homes that reflect both client vision and environmental context. Our firm's longevity and community affiliations demonstrate enduring dedication to architectural excellence in Northern California.
Services
Home Additions Home Remodels Sustainable Architecture Custom Homes Zoning Consultation
Details
  • Year established: 1991
Highlights and features
  • Specializing in Bay Area architecture since 1991
  • Expertise in zoning regulations and permit processes
  • Sustainable design integrated with functional living spaces
  • Deep understanding of local community character
  • Client-focused approach emphasizing active listening
Services
Home Additions
Transforming existing homes through strategic additions that enhance functionality and spatial flow. Our designs prioritize natural light integration and seamless indoor-outdoor connections. We specialize in navigating Bay Area zoning requirements to create practical, code-compliant expansions.
Sustainable Architecture
Creating environmentally responsible buildings that minimize ecological impact while maximizing efficiency. Our approach incorporates energy-saving systems, sustainable materials, and climate-responsive design principles tailored to Northern California's unique conditions.
Custom Homes
Designing bespoke residences that reflect individual client needs and site-specific characteristics. We focus on creating homes that harmonize with their surroundings while incorporating modern living requirements and sustainable practices.
Zoning Consultation
Providing expert navigation through complex zoning regulations and permitting processes. Our team helps clients understand development constraints and opportunities, ensuring smooth project approvals across Bay Area jurisdictions.
Remodeling
Reimagining existing spaces to improve functionality and aesthetic appeal. We specialize in transforming outdated homes into modern, efficient living environments while preserving architectural integrity and neighborhood character.
People
Michael Mullin
Architect
Principal architect with over 30 years of Bay Area experience. Specializes in sustainable residential design and zoning navigation. Leads client consultations and project visioning sessions.
Rob Costin
Colleague
Experienced architectural professional collaborating on project design and technical execution. Contributes expertise in construction documentation and regulatory compliance.
Questions
What areas do you serve?
We primarily serve the San Francisco Bay Area including Oakland, Marin County, and surrounding communities.
What architectural styles do you specialize in?
Our work emphasizes contextual design that responds to site conditions rather than specific stylistic labels.
Do you handle both design and permitting?
Yes, we provide full-service architecture including zoning analysis, design development, and permit acquisition.
How do you approach sustainable design?
We integrate energy-efficient systems, natural materials, and climate-responsive features tailored to each project's unique requirements.
Can you remodel historic homes?
Yes, we have extensive experience preserving architectural integrity while modernizing older homes for contemporary living.