Bathroom Addition in St. Petersburg, FL — Costs $18,758 to $84,411
What does bathroom addition cost in St. Petersburg? Average $42,206, ranging $18,758–$84,411. Labor runs $27.84/hr locally — 6% below the national average. Free breakdown with material + labor split.
St. Petersburg, FL Market
-6% vs nationalLabor Rate
$27.84/hr
Material Index
95
Avg Permit Cost
$689
Median Home Price
$261,280
St. Petersburg is a mid-sized city in Florida with a healthy pool of local contractors. Homeowners generally have several options to compare for a bathroom addition, which helps keep pricing competitive. St. Petersburg offers slightly below-average renovation costs, giving homeowners a small cost advantage compared to most US markets. The median home in St. Petersburg is valued at $261,280, putting this project at about 16.2% of home value — a moderate investment with a projected 58% ROI.
Low Estimate
$18,758
National: $20,000
Mid-Range
$42,206
National: $45,000
High End
$84,411
National: $90,000
Per Sq Ft
$375
National: $400
Bathroom Addition Cost Calculator for St. Petersburg
Adjusted for St. Petersburg's labor rate ($27.84/hr) and material costs (index 95).
Mid-grade materials, good quality fixtures, standard options.
Estimated Total in St. Petersburg
$42,206
Based on 200 sq ft at mid quality, adjusted for St. Petersburg market rates.
Local Cost Breakdown
At St. Petersburg's average rate of $27.84/hr (7% below national avg)
Material cost index 95 (5% below national baseline of 100)
Bathroom Addition vs. Home Value in St. Petersburg
| Metric | St. Petersburg | National Avg |
|---|---|---|
| Bathroom Addition (Mid-Range) | $42,206 | $45,000 |
| Median Home Price | $261,280 | $350,000 |
| Project as % of Home Value | 16.2% | 12.9% |
| Estimated ROI | 58% | 58% |
| Median Household Income | $53,167 | $75,000 |
What Affects the Price in St. Petersburg
- 1Local labor rates ($27.84/hr in St. Petersburg)
- 2Material cost index (95 vs national 100)
- 3Location (new vs converted space)
- 4Plumbing distance
- 5Full vs half bath
- 6Fixture quality
Popular Upgrades
- Walk-in shower
- Double vanity
- Heated floors
Other Projects in St. Petersburg, FL
Kitchen Remodel
$39,530
Master Bathroom Remodel
$26,323
Bathroom Remodel
$16,922
Mudroom Addition
$14,085
Second Story Addition
$187,800
Accessory Dwelling Unit (ADU) Construction
$140,850
Room Addition
$84,510
Home Addition
$75,208
Bathroom Addition in Other Florida Cities
Planning a Bathroom Addition in St. Petersburg
Building permits are typically required for a bathroom addition in St. Petersburg. The average permit fee in this area is $689, though costs vary based on project scope. Permit fees in this market are above average — factor them into your total budget. Plan for 6-10 weeks from start to finish.
A bathroom addition is a complex project best left to licensed professionals. In St. Petersburg, skilled contractors charge an average of $27.84/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.
For the median St. Petersburg household earning $53,167/year, this project at $42,206 represents a significant investment. Consider financing options or phasing the work to spread costs over time.
Bathroom Addition — National Guide
See the full national cost guide with DIY tips, cost factors, and ROI analysis.
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