ADU Impact Fees: Riverview vs Tampa
How do adu impact fees rules compare between Riverview, FL and Tampa, FL?
Riverview, FL
Hillsborough County
No data available yet for Riverview.
Tampa, FL
Hillsborough County
Tampa charges impact fees on residential construction including ADUs, although fees scale to floor area and are lower than for new primary dwellings. Categories include transportation, parks, school (assessed by Hillsborough County), water, and wastewater. Florida Statutes Chapter 163.31801 governs municipal impact fees and recently capped annual increases.
View full Tampa rules →Key Facts Comparison
| Fact | Riverview | Tampa |
|---|---|---|
| Impact Fees | - | Apply to ADUs (reduced) |
| Categories | - | Transp, parks, water, school |
| School Fee | - | Largest typical component |
| State Cap | - | FS 163.31801 (HB 337) |
Highlighted rows indicate differences between cities.
Riverview FAQ
No FAQs available.
Tampa FAQ
Does Tampa charge impact fees on ADUs?
Yes, but at reduced rates compared to new primary dwellings. Categories include transportation, parks, water, wastewater, and Hillsborough County School Impact Fees. Total impact fees for an 800 sq ft ADU typically run $5,000-$15,000 depending on location and shared utility status.
Can Tampa raise impact fees on ADUs every year?
Limited by Florida Statute 163.31801 (HB 337, 2021). Annual increases are capped — 50% over four years or 25% over two years requires phased adoption. Local governments must justify increases with infrastructure studies.
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