Los Angeles
Civil Engineering for Complex Sites Across Los Angeles
Los Angeles hillside properties present some of the most complex grading and drainage challenges in Southern California. Steep slopes, varying soil conditions, and overlapping city and county jurisdictions mean every project requires careful analysis before breaking ground.
We have worked on grading and drainage projects throughout Los Angeles, from single-family hillside homes to mid-size apartment and mixed-use developments. We know what LADBS and LA County expect at plan check, and we put together documentation that keeps your project moving.
Complex Hillside Grading in Los Angeles
LA hillside properties require detailed grading plans that account for slope stability, drainage patterns, and neighborhood concerns. We design 2:1 slope specifications, retaining wall layouts, and driveway grades that work with the natural terrain rather than against it. Our plans show exactly how water moves across your property and where it drains, which is critical for LADBS and LA County approval. We have experience with hillside properties throughout Los Angeles, including Silver Lake, Echo Park, Mt Washington, Bel Air, Hollywood Hills, and the San Fernando Valley.
ADU and In-Fill Projects
Los Angeles has seen a surge in ADU construction as property owners look to maximize their lots. ADUs in LA require civil engineering sign-off for grading and drainage, particularly in hillside zones or properties with slope exceeding 20%. We work with homeowners and architects to put together the documentation LADBS needs for permit approval. We also handle in-fill projects on smaller lots where drainage analysis and stormwater management are required as part of the permit package.
Apartment and Mixed-Use Developments
Beyond single-family residential, we have experience with mid-size apartment and mixed-use projects in Los Angeles. These projects involve larger site areas, more complex drainage patterns, and coordination with multiple consultants. We put together grading plans, drainage plans, and hydrology reports that meet LA City and LA County requirements. Our experience spans from initial feasibility through construction support, including coordination with architects, geotechnical engineers, and municipal plan check reviewers.
Navigating LA City and LA County Requirements
Los Angeles projects often involve multiple jurisdictions. Your property might fall under LA City, LA County, or both depending on its location. We know the differences in requirements and make sure your submittal is complete for the right authority. This matters because submitting to the wrong jurisdiction or missing jurisdiction-specific requirements is one of the most common reasons for plan check delays.
Why Work With B+W Engineering in Los Angeles?
- Grading and drainage experience throughout Los Angeles, from hillside homes to mid-size developments
- Familiar with LADBS and LA County plan check requirements
- ADU and in-fill projects a growing part of our LA work
- Mid-size apartment and mixed-use experience
- Documentation that keeps your permit on track
Your Los Angeles Project
Call us or request a consultation.
Planning a project in Los Angeles? Give us a call to discuss your civil engineering options.
Get Started Today