Introduction
Hiring a Civil Engineer in Los Angeles is rarely optional—it’s often the difference between a smooth permit process and an expensive redesign. From hillside grading and drainage to street improvements and stormwater compliance, local projects can involve tight site constraints and multiple agency requirements.
In this guide, you’ll find a curated shortlist of established civil engineering firms serving Los Angeles, along with what they typically handle, who they’re best for, and how to compare them.
Because many civil engineering projects are custom (and many firms don’t publish consumer-style review profiles), this list is evaluated using publicly available business information when known, plus practical selection criteria like service range, local footprint, and reputation signals that can be verified without speculation.
About Civil Engineer
A Civil Engineer plans, designs, and helps deliver infrastructure and site-related systems that make a property functional and compliant. In Los Angeles, that commonly includes grading plans, drainage design, stormwater quality (often tied to local requirements), utility coordination, and support for permitting and construction.
You may need a Civil Engineer when you’re building or improving a property and the work impacts the land, water flow, streets/sidewalks, or underground utilities. Common triggers include adding square footage, building on a slope, changing site drainage, developing a multi-family or commercial site, or needing engineered plans for plan check.
Average cost in Los Angeles: Varies / depends. Many firms price civil engineering either hourly (often for consulting, reviews, or agency coordination) or as a fixed fee per deliverable (plans, reports, calculations). For homeowner-scale needs (like basic site/drainage planning), costs are often materially lower than for hillside, multi-discipline, or commercial developments, where scope and coordination expand quickly.
Licensing/certifications: In California, civil engineering work that is offered to the public is typically performed or overseen by a California-licensed Professional Civil Engineer (PE). If a project involves land surveying, that portion is generally performed by a licensed Professional Land Surveyor (PLS). Requirements depend on the exact scope and jurisdictional rules.
Key takeaways
- Civil engineering is central to grading, drainage, stormwater, and site utility decisions.
- In Los Angeles, projects frequently require agency coordination and well-prepared plan sets.
- Pricing is typically project-based (plans/deliverables) or hourly (consulting/coordination).
- Look for a team with the right California licensing aligned to your scope (PE, and PLS when needed).
How We Selected the Best Civil Engineer in Los Angeles
We prioritized firms with a track record of delivering civil engineering services in and around Los Angeles, using selection criteria that match how people actually hire for these projects:
- Years of experience (organizational tenure and demonstrated longevity where publicly known)
- Verified customer review signals (only when publicly available and clearly attributable)
- Service range (site civil, drainage, grading, utilities, transportation, water resources, etc.)
- Pricing transparency (clear indication of project-based vs hourly; willingness to quote)
- Local reputation (recognition, footprint, and visible project work in the region)
Not every civil engineering firm maintains public-facing consumer reviews, and many projects are governed by NDAs or client confidentiality. Where specific review summaries, ratings, or contact details are not publicly stated, they are listed as such rather than inferred.
About Los Angeles
Los Angeles is a complex built environment: coastal influences, hillside development, seismic considerations, aging and expanding infrastructure, and a dense patchwork of city and county requirements. That complexity drives steady demand for civil engineering across both private development and public works.
Local demand is commonly tied to:
- New construction and redevelopment
- Hillside and slope stability-related site constraints
- Drainage and stormwater management
- Street, sidewalk, and utility coordination tied to permits
Key neighborhoods and areas commonly served (project needs vary): Downtown, Hollywood, West Los Angeles, Koreatown, Mid-City, Silver Lake/Echo Park, Venice/Mar Vista, San Pedro, and the San Fernando Valley (e.g., Sherman Oaks, Encino, Studio City). Coverage specifics by firm are not publicly stated in a uniform way and depend on office location and project type.
Top 5 Best Civil Engineer in Los Angeles
#1 — AECOM
- Rating: Not publicly stated
- Years of Experience: Not publicly stated
- Services Offered: Civil infrastructure, transportation, water/wastewater, environmental services, program/construction management (varies by office and contract)
- Price Range: Project-based; varies / depends
- Contact Phone: Not publicly stated
- Contact Email (if available): Not publicly stated
- Website (if available): https://aecom.com/
- Google Map or ProfessNow or Yelp Link
- Google Reviews Summary: Not publicly stated
- Best For (Budget / Emergency / Premium / Family-Friendly / etc.): Large-scale infrastructure and multi-discipline projects
#2 — KPFF Consulting Engineers
- Rating: Not publicly stated
- Years of Experience: Not publicly stated
- Services Offered: Civil engineering (site development), structural (firm-wide), and related consulting (service availability varies by location/team)
- Price Range: Project-based; varies / depends
- Contact Phone: Not publicly stated
- Contact Email (if available): Not publicly stated
- Website (if available): https://www.kpff.com/
- Google Map or ProfessNow or Yelp Link
- Google Reviews Summary: Not publicly stated
- Best For (Budget / Emergency / Premium / Family-Friendly / etc.): Private development teams needing coordinated engineering support
#3 — Psomas
- Rating: Not publicly stated
- Years of Experience: Not publicly stated
- Services Offered: Civil engineering, surveying, construction management, water resources (service mix varies by office)
- Price Range: Project-based; varies / depends
- Contact Phone: Not publicly stated
- Contact Email (if available): Not publicly stated
- Website (if available): https://www.psomas.com/
- Google Map or ProfessNow or Yelp Link
- Google Reviews Summary: Not publicly stated
- Best For (Budget / Emergency / Premium / Family-Friendly / etc.): Developments needing civil + surveying coordination under one umbrella
#4 — Moffatt & Nichol
- Rating: Not publicly stated
- Years of Experience: Not publicly stated
- Services Offered: Civil and coastal engineering, ports/marine infrastructure, transportation and related engineering (scope varies by project team)
- Price Range: Project-based; varies / depends
- Contact Phone: Not publicly stated
- Contact Email (if available): Not publicly stated
- Website (if available): https://www.moffattnichol.com/
- Google Map or ProfessNow or Yelp Link
- Google Reviews Summary: Not publicly stated
- Best For (Budget / Emergency / Premium / Family-Friendly / etc.): Coastal, port, and complex infrastructure engineering
#5 — Stantec
- Rating: Not publicly stated
- Years of Experience: Not publicly stated
- Services Offered: Civil/site engineering, water, transportation, environmental services, and multidisciplinary design support (varies by office)
- Price Range: Project-based; varies / depends
- Contact Phone: Not publicly stated
- Contact Email (if available): Not publicly stated
- Website (if available): https://www.stantec.com/
- Google Map or ProfessNow or Yelp Link
- Google Reviews Summary: Not publicly stated
- Best For (Budget / Emergency / Premium / Family-Friendly / etc.): Multidisciplinary projects that benefit from integrated planning/design
Comparison Table
| Professional | Rating | Experience | Price Range | Best For |
|---|---|---|---|---|
| AECOM | Not publicly stated | Not publicly stated | Varies / depends | Large-scale infrastructure and multi-discipline projects |
| KPFF Consulting Engineers | Not publicly stated | Not publicly stated | Varies / depends | Coordinated engineering support for private development |
| Psomas | Not publicly stated | Not publicly stated | Varies / depends | Civil + surveying coordination |
| Moffatt & Nichol | Not publicly stated | Not publicly stated | Varies / depends | Coastal, port, and complex infrastructure |
| Stantec | Not publicly stated | Not publicly stated | Varies / depends | Integrated, multidisciplinary delivery |
Cost of Hiring a Civil Engineer in Los Angeles
Average price range: Varies / depends. In Los Angeles, civil engineering fees typically reflect (1) how many plan sheets/revisions are required, (2) how complex the site is (flat lot vs hillside), and (3) how much agency coordination is needed. Some firms quote fixed fees by deliverable; others work hourly with a not-to-exceed cap.
Emergency pricing: For true urgent needs (for example, time-sensitive construction support or rapid redesign around field conflicts), availability may be limited and rates can be higher. However, 24/7 “emergency” civil engineering is not common compared to trades like plumbing or electrical, and depends on the firm and project relationship.
What affects cost most:
- Scope and deliverables (grading plan, drainage plan, stormwater documentation, utility plans, profiles, details)
- Site conditions (hillside geometry, access constraints, existing retaining walls, drainage conflicts)
- Agency requirements (City of Los Angeles vs County vs Caltrans or other stakeholders, as applicable)
- Survey and existing conditions data (whether current topographic/base mapping is available)
- Revision cycles (plan check comments, owner changes, coordination with architects/landscape)
- Construction support needs (RFIs, submittal reviews, field visits, as-built support)
For accurate budgeting, request a written scope that lists deliverables, assumed agencies, number of revision cycles, and what’s excluded.
Frequently Asked Questions (FAQ)
How much does a Civil Engineer cost in Los Angeles?
Pricing varies by scope and complexity. Many firms use either hourly billing for consulting/coordination or fixed fees tied to deliverables (plans/reports). Request a scope-based quote to compare fairly.
How to choose the best Civil Engineer in Los Angeles?
Match the engineer to your project type (hillside, commercial, public works, coastal, etc.). Confirm California PE oversight, ask what agencies they regularly work with, and review a sample deliverable set if available.
Are licenses required in Los Angeles?
For civil engineering services offered to the public in California, a licensed Professional Civil Engineer (PE) typically oversees or performs the work. If the scope includes boundary/topographic surveying, a licensed Professional Land Surveyor (PLS) is generally required.
What does a Civil Engineer handle for permitting in Los Angeles?
Often grading, drainage, stormwater-related documentation (when required), and utility/site plans—plus responding to plan check comments. Exact requirements depend on the project and the authority having jurisdiction.
Do I need a Civil Engineer for an ADU in Los Angeles?
Sometimes. If the ADU triggers grading/drainage changes, utility work, retaining walls, or nonstandard site conditions, civil engineering may be needed. If the site is straightforward, requirements may be minimal—varies by permit scope.
Can a Civil Engineer help with hillside drainage and erosion control?
Yes—this is a common reason to hire one in Los Angeles. Expect the engineer to evaluate runoff patterns, propose drainage conveyance and discharge approaches, and coordinate with grading constraints and any required documentation.
Who offers 24/7 service in Los Angeles?
Not publicly stated. Civil engineering is typically scheduled professional work; after-hours support may be available for active construction clients depending on the firm and contract.
What should I ask before hiring a Civil Engineer?
Ask for: defined deliverables, schedule, number of revision cycles included, who stamps/signs drawings, what survey data is needed, and how agency coordination is handled. Also confirm what’s excluded to avoid surprise fees.
How long does civil engineering design take in Los Angeles?
Varies widely. Small site tasks can be quicker, while projects involving multiple agencies and revisions can take longer. Timelines depend on data readiness (survey), decision-making speed, and plan check cycles.
Final Recommendation
If you’re a homeowner or small developer who needs site/grading/drainage plans and dependable coordination, prioritize a firm that clearly scopes deliverables, outlines revision cycles, and regularly works with Los Angeles-area permitting workflows.
If you’re managing a complex or multi-discipline project (transportation interfaces, utilities, water resources, environmental coordination), consider larger multidisciplinary providers such as AECOM or Stantec. For projects where combined civil + surveying coordination is valuable, Psomas may be a strong fit. For coastal or marine-adjacent infrastructure needs, Moffatt & Nichol is often aligned to that project profile. For private development teams seeking structured engineering support, KPFF Consulting Engineers is worth exploring.
Budget tip: regardless of firm size, you’ll usually control cost best by locking down scope early, providing current survey/base data, and minimizing late-stage design changes.
Get Your Business Listed
If you’re a Civil Engineer serving Los Angeles and want your listing added or updated, email contact@professnow.com. You can also registe & Update yourself at https://professnow.com/.