Residential Drainage Design in Lee County

Lee County homeowners face unique drainage challenges shaped by 25-year, 3-day rainfall standards. CivilSmart's licensed professional engineers deliver PE-stamped drainage plans that solve water problems and satisfy every regulatory requirement.

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1,000+ Projects

100% Permit Approval

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Deliverables

What We Deliver in Lee County

PE-stamped drainage statement and calculations

Engineering calculations showing pre- and post-development runoff, retention sizing, and design storm compliance.

Grading and drainage plan

Detailed plan showing drain lines, catch basins, cleanouts, flow directions, outlet strategies, and material specifications.

Site plan with existing conditions

Survey-based plan showing current elevations, structures, utilities, easements, and drainage patterns.

Material lists

Detailed quantities and recommended products for pipes, basins, gravel, and system components.

Local Knowledge

Local Expertise in Lee County

Lee County falls under the jurisdiction of South Florida Water Management District, which applies 25-year, 3-day rainfall criteria for stormwater design. Permit processing typically takes 60-90 days typical, with fees ranging from $2,000 to $25,000. Lee County has its own drainage ordinance with specific requirements including flood zones ae/ve: fbc + fema elevation + 1-foot freeboard. CivilSmart's engineers have deep experience navigating SFWMD requirements and local regulations to deliver compliant residential engineering solutions.

SFWMD Jurisdiction

Design Storm: 25-year, 3-day rainfall

Processing Time: 60-90 days typical

Permit Fees: $2,000 to $25,000

PE Stamp: Required for all applications

Local Ordinance

Lee County enforces additional drainage requirements: Flood zones AE/VE: FBC + FEMA elevation + 1-foot freeboard.

Residential Drainage Design Pricing

Starting at $1,000 for Lee County projects.

Pool / Patio Drainage

$1,000 – $2,500

Pool drainage engineering for contractors. Full property drainage analysis with PE stamp — not just pool-area drainage.

Standard Residential

$3,000 – $8,000

Full property drainage engineering for typical residential properties. PE-stamped grading and drainage plans.

Complex Residential

$5,000 – $15,000+

Flood zone properties, retention/detention design, multi-jurisdictional compliance. Full stormwater engineering package.

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Frequently Asked Questions

Residential Drainage Design in Lee County — FAQ

How much does residential drainage design cost in Lee County?

Residential drainage design in Lee County typically ranges from $1,000 for pool/patio drainage to $15,000+ for complex flood zone properties. Standard residential projects average $3,000–$8,000 for PE-stamped grading and drainage plans. Final cost depends on property size, soil conditions, existing drainage infrastructure, and permit complexity. Contact CivilSmart for a free project assessment.

What permits do I need for residential drainage design in Lee County?

Residential drainage projects in Lee County typically require an Environmental Resource Permit (ERP) from South Florida Water Management District for projects affecting more than existing impervious area. Lee County may require additional local drainage plan approval. PE-stamped plans are mandatory for all ERP submittals. CivilSmart handles all permit coordination as part of our residential drainage design service.

5-Year Drainage Recertification in Palm Beach & Broward

Private drainage systems in Palm Beach and Broward counties must be PE-recertified every 5 years.

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Need a Survey for Your Drainage Project?

Every residential drainage design begins with accurate topographic data. We recommend Apex Surveying & Mapping — Florida's #1 surveying firm — for licensed topographic surveys and boundary surveys across all 67 Florida counties. Their survey data is the foundation of precision drainage engineering.

Ready to Start Your Residential Project in Lee County?

Get a free quote from Florida's drainage engineering specialists. PE-stamped plans, SFWMD compliance, and 100% approval rate.

Get Your Free Quote Or call: (305) 216-6944

Licensed Professional Engineers | 1,000+ Projects | 100% Permit Approval | Since 2004