Business Details
19 Years
experience
Your Trusted Architectural Partner in San Rafael, CA
Castor Architecture has specialized in custom residential design for two decades, serving clients from Marin County to Southern California. Our practice extends to mixed-use, multi-family, and manufactured housing, prioritizing authentic solutions over generic templates. We collaborate with landscape architects, interior designers, and contractors to deliver projects that balance client needs with community impact.Founded by Daniel Castor, our team combines rigorous academic training with hands-on experience navigating complex jurisdictions. We maintain a commitment to advancing architectural excellence through thoughtful space planning, proportion, and sculptural composition.
Services
Residential Design
Renovation Projects
Mixed-Use Development
Site Analysis
Construction Administration
Design Review
Code Compliance
Material Selection
Details
- Year established: 2007
Highlights and features
- We offer 20 years of specialized residential design experience
- Our collaborative process integrates landscape, interior, and construction experts
- Proven success navigating complex Bay Area jurisdictions
- Commitment to community impact through architectural excellence
- Personalized approach to each project's unique challenges
Services
Residential Design
We create custom single-family residences that respond to unique site conditions and client needs. Our process emphasizes spatial precision and material authenticity while balancing aesthetic innovation with functional requirements. Projects range from ground-up construction to adaptive reuse of existing structures.
Renovation Projects
Specializing in transforming existing buildings, we modernize outdated spaces while preserving architectural character. Our approach maintains structural integrity while updating layouts, systems, and finishes to meet contemporary living standards through meticulous space planning.
Mixed-Use Development
We design integrated spaces combining residential, retail, and community functions. Our solutions optimize land use while creating cohesive environments that serve diverse user groups. This includes affordable housing components and modular construction approaches.
Site Analysis
Comprehensive assessment of topography, zoning, and environmental factors informs our design process. We analyze views, access points, and regulatory constraints to develop context-sensitive solutions that maximize site potential while meeting legal requirements.
Construction Administration
We provide ongoing site supervision to ensure construction aligns with design intent. Our team coordinates technical systems integration, reviews contractor submissions, and resolves field issues to maintain quality control throughout the building process.
People
Daniel Castor
Founder & Architect
Licensed architect with 20+ years of experience, Princeton and Harvard-trained, Fulbright Scholar, and Rome Prize recipient. Specializes in residential design with expertise in Bay Area regulations and sustainable building practices.
Questions
What architectural services do you specialize in?
We focus on custom residential design, renovations, and mixed-use developments with expertise in challenging jurisdictions across Northern California.
How long have you served the Bay Area?
Our firm has specialized in Bay Area projects for 20 years, with experience navigating local planning departments and design review boards.
Can you handle complex building sites?
Yes, we excel at transforming difficult sites into functional spaces through creative problem-solving and technical expertise.
Do you work on commercial projects?
While primarily residential, we also design mixed-use developments combining residential, commercial, and community spaces.
What's your design approach?
We prioritize context-sensitive solutions that balance client needs with community impact through precise space planning and material selection.
How do you handle permitting processes?
We guide clients through entitlement processes with local jurisdictions, leveraging our extensive experience with Bay Area regulations.
