Civil Engineering & Land Surveying Services in San Jose

When it comes to developing land in San Jose and the Bay Area, precision and compliance are everything. At Osuna Civil Engineering Inc., we provide a full suite of civil engineering and land surveying services designed to help homeowners, developers, contractors, and municipalities move projects forward with confidence.

As a family-owned firm rooted in San Jose, we combine decades of technical expertise with a community-first approach - streamlining the entire process by offering surveying and engineering services in-house.

Our Civil Engineering Services

Civil engineering ensures that every project - from a backyard renovation to a multi-lot subdivision - is designed safely, efficiently, and in compliance with city, county, and state regulations.

Grading & Drainage Plans: We design site grading and drainage systems to manage water flow, prevent flooding, and protect your property from erosion while meeting city requirements.
Utility Plans: Our utility plans map out essential systems like water, sewer, and storm drains to ensure smooth integration with San Jose’s infrastructure.
Erosion & Sedimentation Control Plans: We prepare control plans to safeguard construction sites, manage stormwater runoff, and meet environmental compliance standards.
Storm Water Control Plans: Our stormwater plans protect nearby waterways by reducing pollution and helping projects comply with California stormwater regulations.
Public Improvement Plans: From roads to sidewalks, we design improvements required by municipalities to support community growth.
Private Improvement Plans: We develop site-specific infrastructure like driveways, drainage systems, and private utilities for residential and commercial projects.
Hydraulic & Hydrology Calculations: We analyze water flow and flood risks to design safe, effective drainage systems.
Land Planning: Our land planning services maximize site use while aligning with zoning, environmental, and community needs.
Subdivision Tentative Maps: We prepare tentative subdivision maps for new developments, ensuring compliance with local regulations.
HEC-RAS Analysis: Our flood modeling expertise supports FEMA studies and helps design flood mitigation strategies.
Creek Flood Plain Studies: We conduct detailed floodplain studies to guide safe development near waterways.
Annexations: We provide technical support for annexing properties into city boundaries, simplifying approvals and compliance.

Our Land Surveying Services

Topographic Surveys: We capture elevations, slopes, and features to guide site design and development.
Boundary Surveys: Our surveys define property lines clearly, preventing disputes and supporting legal documentation.
ALTA/NSPS Surveys: We prepare detailed commercial surveys that meet ALTA/NSPS standards for lenders and title companies.
Creek Surveys: Our surveys document waterways for flood studies, permitting, and environmental compliance.
Tentative Maps: We prepare draft maps for subdivisions or lot splits, assisting with city and county reviews.
Subdivision Mapping: We create precise subdivision maps to guide development and regulatory approvals.
Lot Line Adjustments: We adjust and document property boundaries to reflect ownership or land use changes.
Parcel Maps: We prepare parcel maps for property divisions, ensuring compliance with state and local standards.
Plat & Legal Descriptions: Our legal descriptions define properties with precision for deeds, permits, and transactions.
FEMA Certifications: We provide flood certifications to support insurance, permitting, and compliance needs.
Cross Sections: We prepare cross-sectional views for construction, drainage, and floodplain analysis.
Staking Plans: Our staking plans guide contractors by marking exact construction locations on-site.
Construction Staking: We provide on-site staking to ensure buildings, roads, and infrastructure are built to exact specifications.
As-Built Surveys: We verify completed construction against approved plans for compliance and documentation.
Pad Certification: We certify that building pads meet elevation and code requirements.
Foundation Setback Certification: We verify foundations are placed within setback limits defined by zoning.
Roof Height Certification: We certify roof elevations comply with local zoning and design ordinances.
Daylight Plane Certification: We ensure structures meet daylight plane requirements to protect neighborhood aesthetics.
Right-of-Way Surveying: We establish and document right-of-way boundaries for roads, utilities, and public access.

Why Choose Osuna Engineering?

Local Expertise: Deep knowledge of San Jose and Bay Area permitting requirements.
Full-Service In-House Team: Civil engineering + land surveying under one roof.
Family-Owned Values: Trust, transparency, and long-term partnerships.
Community Focus: We don’t just build plans; we build solutions for the community

Serving San Jose & Surrounding Areas

We proudly provide civil engineering and land surveying services across San Jose, Santa Clara County, and the greater Bay Area, including Santa Clara, Sunnyvale, Cupertino, Campbell, Milpitas, Los Gatos, and Morgan Hill.

Start Your Project With Confidence

From grading and drainage plans to ALTA surveys and FEMA certifications, Osuna Engineering is your trusted partner for engineering and surveying services in San Jose.