Commercial Stormwater Management & Design
Commercial properties face complex stormwater management challenges. Our engineering team has the knowledge, skill, and ability to ensure your commercial stormwater management system continues to operate at peak performance. From new development to 5-year recertification, our licensed professional engineers design stormwater systems that meet Florida’s regulatory requirements — and stay in compliance.
Commercial Stormwater Engineering Services
Commercial stormwater management in Florida requires PE-stamped engineering plans that address retention, detention, water quality treatment, and multi-agency permit compliance. Our comprehensive engineering covers every aspect — from master planning to post-construction certification.
Comprehensive Stormwater Design
Full stormwater master planning with existing and proposed conditions modeling. Retention and detention system design, underground drainage systems, surface water diversion, and backflow prevention — all calibrated for Florida’s demanding conditions.
Water Quality Pre-Treatment
BMP and LID design including bioswales, StormTech systems, and treatment train approaches. Nutrient removal calculations meeting FDEP and Water Management District requirements.
Localized Flooding Control
Storm drains, catch basins, culverts, pipe runs, and conveyance systems designed to control flooding and protect commercial assets.
Permit Compliance
Full permit management: ERP applications, NPDES/CGP filing, Water Management District coordination, FDOT approvals, and multi-agency review management. 100% approval rate.
Benefits of Professional Stormwater Engineering
Professionally engineered stormwater systems reduce flood risk, prevent regulatory fines, and extend the lifespan of commercial infrastructure by 20–30 years compared to unengineered solutions. Engineered stormwater solutions protect your investment, ensure compliance, and reduce long-term infrastructure costs.
Full Regulatory Compliance
Meet all FDEP, WMD, county, and city stormwater requirements on the first submission.
Protect Commercial Assets
Engineered drainage prevents property damage, parking lot deterioration, and structural degradation.
Reduce Long-Term Expenses
Properly designed stormwater systems minimize maintenance, emergency repairs, and regulatory penalties.
5-Year Capital Improvement Planning
Develop a proactive maintenance and improvement program for your stormwater infrastructure.
Reduce Impacts from Sudden Failures
Redundancy and resilience engineered into every system design.
Our Commercial Stormwater Engineering Process
Assess Existing Conditions
- Site inspection and existing infrastructure evaluation
- Stormwater master plan analysis with existing and proposed conditions modeling
- Level of service improvement assessment
- Floodplain mapping and flood zone verification
Acquire & Review Record Documents
- Collect existing plans, survey data, and as-built documentation
- Review permit history and regulatory compliance records
- Identify all applicable regulatory requirements across jurisdictions
- Map the full regulatory framework (WMD, county, city, FDOT)
Professional Analysis & Engineering Design
- Hydrologic and hydraulic modeling for site-specific conditions
- Retention/detention system sizing and design
- BMP and water quality treatment engineering
- Underground drainage, conveyance, and erosion control design
- Design storm performance verification
Permit Applications & Compliance
- Environmental Resource Permit (ERP) applications
- NPDES/CGP filing and NOI submission
- Water Management District coordination
- FDOT drainage connection approvals
- Multi-agency review management through approval
Construction Oversight & RFB Management
- Construction phase engineering services
- SWPPP monitoring and inspection oversight
- Post-construction certification documentation
- As-built verification against approved plans
From initial assessment to post-construction certification, we manage the entire stormwater engineering lifecycle.
Related Commercial Services
Specialized stormwater engineering for specific commercial applications.
Parking Lot Drainage
Stormwater engineering for commercial parking facilities. Catch basins, pipe systems, and water quality treatment designed for high-traffic surfaces.
Request a QuoteRetention Pond Remediation
Rehabilitation and re-engineering of existing retention systems. Restore capacity, improve water quality performance, and ensure regulatory compliance.
Request a QuoteDrainage Assessments
Evaluation of existing stormwater infrastructure performance. Identify deficiencies, model capacity, and develop improvement recommendations.
Request a QuoteWhen You Need Commercial Stormwater Engineering
These situations require professional stormwater engineering from a licensed Professional Engineer.
New Commercial Development or Redevelopment
All new commercial construction requires engineered stormwater management plans and permits.
Land Disturbance of 1+ Acre
SWPPP and Construction Generic Permit (CGP) are mandatory for any project disturbing one or more acres.
Connections to Public Drainage Works
Connecting to municipal drainage infrastructure requires engineering analysis and permit approval.
Modifications to Existing Stormwater Infrastructure
Any changes to existing stormwater systems require engineering review and may trigger new permit requirements.
Site Plan Approval Requirements
Stormwater management plans are a core component of commercial site plan entitlement packages.
Changes to Impervious Surface Area
Adding pavement, buildings, or other impervious surfaces triggers stormwater calculation and permit requirements.
5-Year Stormwater System Recertification
Properties in Palm Beach and Broward counties require PE inspection and recertification every 5 years.
Stormwater System Failure or Non-Compliance Notice
Emergency engineering assessment and remediation design for failing or non-compliant stormwater systems.
Not sure if your project requires stormwater engineering? Request a project consultation.
Residential vs. Commercial Stormwater Engineering
Commercial stormwater projects require significantly more complex engineering than residential projects due to larger impervious areas, stricter water quality standards, and multi-agency permit requirements.
| Criteria | Residential | Commercial |
|---|---|---|
| Typical Cost | $3,000–$15,000 | $10,000–$150,000+ |
| Timeline | 4–12 weeks | 2–18 months |
| Primary Permits | ERP (general/noticed) | ERP, NPDES/CGP, FDOT, local |
| Water Quality | Basic retention/detention | BMP/LID, nutrient removal, treatment train |
| SWPPP Required | Rarely (under 1 acre) | Yes (1+ acre disturbance) |
| Recertification | Not required | Every 5 years (PBC/Broward) |
| PE Stamp | Required for most permits | Required for all permits |
Frequently Asked Questions
What is included in a commercial stormwater management plan?
What permits are required for commercial stormwater projects in Florida?
How long does commercial stormwater engineering take?
What is a SWPPP and when is it required?
What is 5-year drainage recertification?
Related Articles
Expert guides from our stormwater engineering team.
Commercial Stormwater Management Costs in Florida (2026)
Engineering costs $10,000–$150,000+ depending on site size. Complete cost breakdown for commercial projects.
SB 7040 Explained: How Florida's Stormwater Law Affects Your Project
SB 7040 ratified nutrient reduction standards affecting ERP permits, project costs, and compliance requirements.
SWPPP in Florida: Complete Guide
When you need a Stormwater Pollution Prevention Plan, what it costs, and how to get one.
How to Choose a Stormwater Management Contractor
What to look for in a stormwater contractor and when you need an engineer first.
How to Find a Drainage Engineer in Florida
10 questions to ask and what to look for when hiring a drainage engineer.
Drainage Engineering Costs in Florida (2026)
Complete cost breakdown for residential and commercial drainage engineering.
Drainage Engineer vs Contractor
When to hire a drainage engineer vs a contractor for your Florida project.
Hurricane Season Drainage Prep
Protect your Florida property before hurricane season with drainage upgrades.
Florida Water Management Districts Guide
SFWMD, SJRWMD, SWFWMD, SRWMD, NWFWMD — which WMD covers your property.
Ready to Start Your Stormwater Project?
Request a consultation with Florida’s commercial stormwater engineering specialists. We respond within 24 hours.
Licensed Professional Engineers | 100% Permit Approval | All 67 Florida Counties