Grading & Drainage: Riverview vs Tampa
How do grading & drainage rules compare between Riverview, FL and Tampa, FL?
Riverview has fewer restrictions than Tampa.
Riverview, FL
Hillsborough County
Hillsborough County requires grading permits for any earthwork over 50 cubic yards or affecting drainage patterns. LDC §4.01 prohibits altering natural drainage to harm adjacent property. Finished grade must direct water to approved stormwater system, not neighboring lots.
View full Riverview rules →Tampa, FL
Hillsborough County
Tampa regulates grading and drainage through its building code and stormwater management ordinance (Chapter 21). All grading work must ensure proper drainage and cannot adversely affect neighboring properties. Tampa's flat terrain and high water table make drainage design critical.
View full Tampa rules →Key Facts Comparison
| Fact | Riverview | Tampa |
|---|---|---|
| Threshold | 50 cubic yards | - |
| Foundation Slope | 6 in/10 ft min | - |
| Wetlands | SWFWMD permit | - |
| Swales | Protected | - |
| Governing Code | - | Tampa Code Ch. 21 and Building Code |
| Water Table | - | Often within few feet of surface |
| Detention | - | On-site retention typically required |
| Flood Zone Fill | - | Compensating storage required |
| SWFWMD | - | Water management district standards apply |
Highlighted rows indicate differences between cities.
Riverview FAQ
Can I fill my yard to stop flooding?
Not without a grading permit. Altering drainage to push water to neighbors can result in civil liability and code fines.
Who enforces this in Hillsborough County?
Hillsborough County code enforcement at (813) 272-5900 handles complaints.
Tampa FAQ
Why is drainage so important in Tampa?
Tampa's flat terrain and high water table mean improper drainage quickly causes flooding. Development must manage stormwater on-site and meet SWFWMD standards for water quality and flood control.
Can I add fill to my property in Tampa?
Fill in flood zones requires compensating storage to prevent increasing flood risk to neighbors. Grading permits and engineering plans are needed for significant earthwork.
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