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Petaluma Civil Engineering Firm


Trusted Petaluma Civil Engineering Firm

BC Engineering Group is a trusted civil engineering firm proudly serving Petaluma and southern Sonoma County. Our team of engineers, planners, and landscape architects delivers innovative, code-compliant solutions for residential, commercial, and agricultural developments. From grading and drainage design to wastewater systems and site planning, we combine technical precision with local experience and integrity.


Superior Experience and Service

We approach every project with excitement and enthusiasm, and are always seeking for new ways to educate ourselves about new products, innovative materials, exciting tools, and the latest building technologies.

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Civil Engineering Services in Petaluma

We design grading, drainage, roadway, and utility systems that meet City of Petaluma and Sonoma County standards, ensuring performance, compliance, and value.

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Civil Engineering

We design grading, drainage, roadway, and utility systems that meet City of Petaluma and Sonoma County standards, ensuring performance, compliance, and value.

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Land Planning

Our land planners help navigate zoning, design review, and agency coordination—streamlining the approval process for Petaluma development projects.

Waste Water Systems

We provide septic and wastewater treatment design for residential, commercial, and agricultural properties throughout Petaluma, including winery and rural systems.

Landscape Architecture

Our landscape architecture team creates outdoor environments that balance beauty, function, and sustainability for homes, businesses, and agricultural sites.

Engineers reviewing development plans

Why Choose BC Engineering Group in Petaluma

Petaluma clients choose BC Engineering Group for our professionalism, responsiveness, and proven local experience. With decades of combined expertise, we’ve built strong relationships with city and county agencies to streamline reviews and permitting. Our multidisciplinary approach—combining civil engineering, land planning, landscape architecture, and wastewater design—ensures coordinated, cost-effective, and compliant results. Guided by our principle that “Honesty Comes First,” we deliver trusted engineering solutions with lasting value.

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Civil Engineering Solutions in Petaluma

BC Engineering Group develops practical, efficient, and environmentally conscious designs suited to Petaluma’s diverse terrain and growth patterns. Whether you’re improving an existing property, developing a rural parcel, or managing a commercial expansion, our engineers bring precision and innovation to every phase. We focus on building resilient, sustainable infrastructure that meets today’s demands while protecting future land use potential.

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Projects & Experience Across Petaluma and Northern California

BC Engineering Group has supported a wide range of projects across Petaluma and the greater North Bay region. Our work includes residential site design, commercial property improvements, agricultural infrastructure, and public utility coordination.


Every project begins with detailed site assessment and feasibility analysis to identify constraints, opportunities, and optimal design strategies. Our team provides grading, drainage, and stormwater management solutions that comply with local standards while maintaining project efficiency. For rural and agricultural properties, our wastewater specialists design systems that protect groundwater and support long-term land use.


Beyond engineering, our planners and landscape architects create site designs that are functional, attractive, and sustainable. From initial consultation through final construction, we’re committed to transparent communication, technical accuracy, and client satisfaction.

Serving Petaluma and Beyond

Headquartered in Santa Rosa, BC Engineering Group proudly serves clients throughout Petaluma, Rohnert Park, Sonoma, Sebastopol, and the surrounding Sonoma County region—as well as across Northern California. Wherever your project is located, our experienced team provides trusted expertise and practical, sustainable design solutions.


Latest News From Our Blog

Wheelbarrow filled with dark soil next to a larger pile of soil on grass.
October 23, 2025
Discover grading violations in Sonoma County: rules, fines, and compliance tips to protect your property and avoid costly penalties.
Water spraying from a sprinkler head on a white ceiling.
October 2, 2025
Guide to fire sprinkler requirements in California for homes, businesses & industrial sites — compliance, design, regulations.
BC Engineering Group playing cornhole at a community fundraiser in Santa Rosa
September 5, 2025
BC Engineering joined EWB’s cornhole fundraiser in Santa Rosa, helping raise $11 000 for rainwater systems in Peru.