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Your Trusted Architectural Partner in San Francisco
Costa Brown Architecture has over two decades of experience working within San Francisco's historic architectural landscape. We specialize in uncovering hidden value in historical buildings, from industrial relics to pre-1906 Victorians, while maintaining truth in materials and functional design. Our approach emphasizes collaboration with skilled fabricators and deep understanding of the city's permit processes to deliver successful project approvals. We balance preservation with modernization, transforming underutilized properties into landmark buildings that meet contemporary needs.

Our expertise spans commercial, residential, and mixed-use projects, always prioritizing sustainability and human-scale design. With a combined 80+ years of architectural experience, our principals bring global recognition and local expertise to every project. We create spaces that celebrate tactile materials, maximize property potential, and exceed client expectations through personalized design solutions.
Services
Approvals Base Building Upgrades Interior Architecture New Construction
Highlights and features
  • We offer 20+ years of experience with San Francisco's historical buildings
  • Our team has successfully navigated complex city permitting processes
  • We specialize in transforming underutilized properties into landmark buildings
  • Our principals have 80+ combined years of architectural expertise
  • We maintain truth in materials while creating functional modern spaces
Services
Approvals
Our firm specializes in navigating San Francisco's complex permitting processes. With deep knowledge of Building and Planning Department requirements, we conduct detailed permit evaluation studies that save clients time and resources. Our proven track record of successful approvals ensures projects move forward efficiently while maintaining compliance with all regulatory standards.
Base Building Upgrades
We transform historical buildings by uncovering hidden value in underutilized properties. Our expertise spans from industrial relics to Victorian homes, where we preserve architectural character while implementing modern functionality. Through careful material selection and design innovation, we convert historical structures into desirable spaces that meet contemporary needs while maintaining their unique heritage.
Interior Architecture
Our interior design approach focuses on spatial optimization and material authenticity. We create engaging workplaces that foster collaboration and modern residential spaces that maximize natural light. By reimagining floor plans and incorporating custom details, we transform complex historical interiors into functional, inviting environments that balance aesthetic appeal with practical usability.
New Construction
We design timeless new buildings that prioritize sustainability and human-scale integration. Our process emphasizes site-specific solutions and iterative design to create structures that complement their surroundings. With over 1,000,000 square feet of completed projects, we deliver innovative spaces that balance environmental responsibility with architectural excellence across commercial and residential sectors.
People
Theodore Brown
Founder
With 40+ years of experience, Theodore Brown is a globally recognized architect who established his practice in San Francisco in 1976. He has designed award-winning projects like the Dakin Building and Nesbitt residence, bringing decades of expertise in creating architecturally significant structures that blend innovation with tradition.
Albert Costa
Principal
Albert Costa brings extensive experience in site-specific design and craftsmanship to the firm. As Principal, he specializes in creating functional spaces that maximize property potential while maintaining architectural integrity. His particular interest in rooftop design has led to innovative solutions that transform underutilized spaces into valuable living areas.
Questions
What architectural styles does Costa Brown specialize in?
We specialize in historical building preservation while incorporating modern design elements. Our expertise spans industrial relics, Victorian homes, and contemporary commercial spaces.
How does the firm handle San Francisco's permitting process?
Our team has deep knowledge of SF's Building and Planning Departments, conducting detailed permit evaluation studies to ensure efficient approvals for all projects.
Can you work with existing historical structures?
Yes, we specialize in transforming underutilized historical buildings into functional modern spaces while preserving their architectural character and heritage value.
What commercial spaces do you design?
We create engaging workplaces that foster collaboration, incorporating branding elements while ensuring functional efficiency for startups and established businesses alike.
Do you handle both interior and exterior design?
As a full-service firm, we provide comprehensive design solutions covering both interior architecture and exterior building design projects.
What sustainability practices do you incorporate?
We integrate sustainable design principles in all projects, focusing on material authenticity, energy efficiency, and site-specific solutions that minimize environmental impact.
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