At Underwood & Rosenblum, Inc., we deliver precise, efficient, and professional land surveying services across San Jose, the San Francisco Bay Area, Silicon Valley, and throughout California. With over 40 years of experience, our licensed surveyors have supported thousands of successful projects for commercial developers, homeowners, school districts, municipalities, and institutional clients. Whether you’re preparing for a new build, ADA upgrades, or navigating subdivision regulations, we provide the clarity you need to move forward with confidence.
Boundary Surveys
Accurate property line identification for development, legal documentation, and permitting.
Topographic Surveys
Detailed site and elevation mapping for grading, drainage, ADA compliance, and site design.
Utility Surveys
Precise location and mapping of underground and above-ground utilities to support infrastructure and site planning.
Construction Staking
On-site layout of structures and improvements based on engineering plans and architectural designs.
ALTA/NSPS Land Title Surveys
Comprehensive, lender-approved surveys for commercial real estate and institutional property transactions.
Subdivision Mapping
Expert services for parcel mapping and land divisions, including SB9 subdivision projects for compliant lot splits and urban infill developments.
Aerial & GPS Surveying
State-of-the-art technology used to capture fast, accurate data with minimal disruption to active sites.
We proudly serve:
Looking for a trusted land surveyor in San Jose, the Bay Area, or anywhere in California? Underwood & Rosenblum is ready to help.
Call us today at (408) 453-1222 or contact us to request a proposal or consultation.
Let’s bring clarity to your project—above and below the surface.