Your Central Coast village engineer, committed to providing the highest quality civil engineering deliverables, personalized professional guidance, and inspection services for your project’s unique needs.
Our Services
Land Planning
Feasibility Analysis
Conceptual Site Layout and Design
Entitlement Processing
Tentative Parcel and Tract Maps
Planned Unit Development and Condominium Plans
Agency Coordination
Civil Design Documents
Grading, Drainage, and Erosion Control Plans
SWPPP Development and Site Compliance Monitoring
Engineered Septic Plans
Site and Utility Construction Plans
As-Built Plans / Record Drawings
Public Frontage/Street Improvement Plans
Stormwater Control Plans
Traffic Control Plans
Parking Layout, Signage, Striping, and Accessibility Plans
Hydrology and Hydraulics Analysis and FEMA Mapping Support
Drainage Reports and Calculations
Construction Quantity Take-Offs and Cost Estimates
Construction Progress Monitoring
About us
Marchell Engineering is your Central Coast “village engineer” — a small, relationship-driven civil engineering consulting practice that continues the legacy of Roberts Engineering, giving homeowners, designers, and developers a single professional point-of-contact from first phone call to final sign-off. We are located in Atascadero, California and offer personal land development services to clients throughout the Central Coast and adjacent counties. With decades of local experience, we have a deep roster of professional consultants to provide a full spectrum of engineering and development services to carry your project from concept to completion.
Each of the engineering projects we handle is unique, ranging from a single-family custom residences on large acreage, to residential multi-family and commercial / industrial developments.
We personally evaluate each new project and assemble a qualified team of design professionals to ensure success. Our associates include, planning, geotechnical, geological, environmental, land surveying and mapping, structural, and architectural consultants.
Our clients in both public and private arenas include, landowners, contractors, architects, real estate developers, local, state and federal agencies.
We understand the complex nature of the development business. We offer a free initial consultation and prompt low cost feasibility analysis to get you the information you need to evaluate your specific project requirements.
Our Team
Brandon Marchell
Brandon received a Bachelor of Science degree from Cal Poly, San Luis Obispo with a in Civil Engineering, including a semester exchange in Bauingenieurwesen at Hochschule München. He began his land development career with Omni Design Group in 2012, serving as a project engineer at RRM Design Group from 2018–2022 before returning to Omni to manage an international BIM modeling team.
Brandon is a lifelong resident of San Luis Obispo County. His experience includes site grading, septic design, stormwater management, and construction-phase compliance services for projects in the residential, commercial, municipal, educational, public safety, recreation, transportation, and telecommunication sectors across California. He is an active proponent of the use of the slide rule in modern engineering.
Leanna Marchell
Leanna received dual Bachelor of Arts degrees from Thomas Edison University in Music and Speech Therapy. She served as a technical editor at a local environmental engineering firm.
At Marchell Engineering she handles agency coordination, accounting, correspondence, project scheduling, status and client contact.
She also teaches classical Suzuki violin and plays in the San Luis Obispo Symphony.
Contact Us
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