Projects move fast when the plans are tight, the story is clear, and the permitting package is built for how the city reviews. The Kastrop Group is an architecture firm serving the Bay Area with full-service architectural design for residential architecture, commercial architecture, and public architecture, from early feasibility through construction support.
We design new buildings, additions, remodels, tenant improvements, ADUs (accessory dwelling units), and civic-focused work, with permitting support and project management baked in. Expect sharp concepts, practical detailing, and a team that knows the permit approval process.
Our Architectural Services
We lead projects from first sketch to final permit set, then stay involved to help the build match the intent.
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Architecture Project Map
See completed work across the Peninsula and the greater Bay Area.
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Residential Architecture
Remodels, additions, new homes, and smart upgrades that improve flow, light, and livability.
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Commercial Architecture
Tenant improvements, workplace and retail buildouts, new buildings, and code-ready documentation that keeps schedules moving.
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Public Architecture
Durable, community-centered projects designed for function, access, and long-term value.
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Accessory Dwelling Units (ADUs)
End-to-end ADU design for backyard cottages, garage conversions, new detached and attached units, with a clear plan for permitting.
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Design Process
A transparent architectural design process that keeps decisions clear and drawings on track.
Want to talk scope and budget first? Start by contacting The Kastrop Group today!
Why Choose The Kastrop Group in Redwood City, CA
- Award-winning architectural design with real-world buildability
- Deep experience with Bay Area zoning, plan check, and permitting
- Proven work across residential, commercial, and public projects
- Sustainable and energy-efficient design options (without overcomplicating the build)
- Direct communication, fast answers, and collaborative decision-making
- 3D modeling and visualization to reduce surprises before construction
- Local, community-focused architecture firm
- Track record across the Peninsula and greater Bay Area
Who We Serve in Redwood City & the Bay Area
We work with homeowners planning new homes, remodels, additions, and accessory dwelling units (ADUs); business owners and operators who need commercial space planning or tenant improvements; and public agencies delivering civic or community-focused projects.
We also support developers with feasibility studies and site planning, plus property owners who need help navigating code compliance, constraints, and the permitting path.
Our Design & Project Process
You'll always know what's happening, what's next, and what decisions matter.
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Initial consultation
Goals, constraints, timeline, budget reality check.
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Site evaluation
Measurements, context, zoning + code review.
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Conceptual design
Layouts, massing, options you can actually choose from.
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Construction documents
Detailed, coordinated drawings ready for pricing + permit.
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Permitting support
Responses, revisions, and coordination through approvals.
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Contractor coordination
Smoother handoff, fewer "gray area" moments.
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Ongoing project oversight
Design intent stays intact during construction.
Locations We Serve
- Redwood City, CA
- San Carlos, CA
- Belmont, CA
- San Mateo, CA
- Menlo Park, CA
- Woodside, CA
- Palo Alto, CA
- Atherton, CA
- Foster City, CA
- Burlingame, CA
- Greater San Francisco Peninsula
- Nine Bay Area counties
Frequently Asked Questions
- How long does the design process take?
- It depends on scope, review cycles, and how quickly decisions get made. Many projects move from early concepts to permit-ready drawings in phases. After a consultation, we can map a realistic timeline based on your project type and the Planning & Building department review path.
- Do you help with permitting?
- Yes. Permitting support is part of how we run projects: zoning checks, plan sets, responses to comments, and coordination to keep approvals moving.
- What types of projects do you specialize in?
- We deliver residential architecture, commercial architecture, and public architecture, including remodels, additions, tenant improvements, and civic/community-focused work.
- Do you design ADUs and additions?
- Yes. We handle ADU design (including accessory dwelling units, conversions, and attached units) plus additions and remodels, with a clear plan for layout, utilities, and permitting.
- What is required before starting a project?
- An on-site consultation to align on goals and budget, basic property details, and any surveys or prior drawings you already have. If you don't have them, we'll tell you what's worth ordering, and what isn't.
Contact our office
If you want architects who can design boldly and get a clean set through local review, set up your consultation today. We bring hands-on experience with local zoning and permitting, plus the project leadership to keep your residential, commercial, or public architecture work organized from start to finish.
The Kastrop Group | 2000 Broadway, Ste. 273, Redwood City, CA 94063