Renovated Duplex With
For Sale
Under Contract
$374,900
2521 4TH Street S, St Petersburg, FL 33705
Residential Income, ST PETERSBURG, FL
Property Size1,296 SF
Lot Size0.13 Acres
Price / SF$289.27
Days on Market103
Property Features for 2521 4TH Street S
General Information
Property type
Residential Multi Family
Property subtype
Duplex
Bedrooms
2
Bathrooms
3
Full bathrooms
3
Rooms
Bathroom 3, Bathroom 2, Bathroom 1, Bedroom 1, Bedroom 2
Interior features
Ceiling Fans(s)
Exterior features
Awning(s)
Appliances
Electric Water Heater, Range, Refrigerator
Subdivision
HARBORDALE SUB
Directions
From Downtown go South on 4th St, property on right. Park on 26th Ave for showings
Standard status
Active Under Contract
APN
31-31-17-36684-000-0180
Size
1,296 SF
Lot size
0.13 Acres
Taxes and HOA fees
Tax Year
2025
Tax Description
HARBORDALE SUB LOT 18
Tax Annual Amount
7106
Legal Description
HARBORDALE SUB LOT 18
Utilities
Sewer type
Public Sewer
Heating system
Ductless (Heating), Central
Cooling system
Central Air, Window Unit(s), Wall/Window Unit(s)
Water source
Public
Building Details
Year built
1938
Floors in Building
1
Flooring type
Laminate
Building materials
Frame
Roof type
Shingle
Listing Agency:
COMPASS FLORIDA LLC
(727) 380-2067
Listed By:
Joseph Snyder, LLC · License #3292721
(352) 634-1590
Added: May 28
Changed: Sep 5
Last Checked: Sep 7 at 7:06PM
MLS# TB8514346
Copyright © 2026 Stellar MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
Investment Insights
Based on property information with market context.
This duplex-style property includes a 1,296-square-foot main residence and a detached studio apartment on a 0.13-acre lot. The two residences have been updated with modern finishes, while the main house has a brand-new roof. Interior features include laminate flooring and ceiling fans, with central and ductless heating plus central and wall or window cooling systems. The property also includes a range, refrigerator, electric water heater, awnings, a shingle roof, and frame construction.
Located in St. Petersburg, the property is near downtown St. Petersburg and Lassing Park, providing access to dining, entertainment, city amenities, and outdoor recreation. Public water and public sewer serve the site. The main residence includes two bedrooms and two bathrooms, while the detached studio adds a separate living arrangement.
Located in St. Petersburg, the property is near downtown St. Petersburg and Lassing Park, providing access to dining, entertainment, city amenities, and outdoor recreation. Public water and public sewer serve the site. The main residence includes two bedrooms and two bathrooms, while the detached studio adds a separate living arrangement.
Key Highlights
- 1,296‑square‑foot property on a 0.13‑acre lot
- Detached studio apartment accompanies the main residence
- Main house roof is brand new
Financial Insights
Estimated NOI and Cap Rate
NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$15,127
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
4.03%
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$302,540
$302.5K
Cap Rate 7%
$216,100
$216.1K
Cap Rate 9%
$168,078
$168.1K
Market Conditions
NOI Build-Up for 1,296 SF
Vacancy — income lost from leasable area expected to sit empty during the year, subtracted from gross rent.
EGI (Effective Gross Income) — gross rent minus vacancy losses, the realistic income before paying operating costs.
OpEx (Operating Expenses) — recurring costs to operate the property (property tax, insurance, utilities, maintenance, management); excludes financing and capital improvements.
NOI (Net Operating Income) — income a property generates after operating costs but before financing and taxes.
Gross rent
$23.2K $17.88/SF
− Vacancy
−$1.6K −$1.21/SF
EGI
$21.6K $16.67/SF
− OpEx
−$6.5K −$5.00/SF
NOI
$15.1K $11.67/SF
Area
Pinellas County, FL
Vacancy
6.74%
Lease Rate
$17.88 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$302,540
Cap Rate 7%
$216,100
Cap Rate 9%
$168,078
Alternative Uses
Best Use
Multifamily LT 5
$216.1K
$189.1K – $252.1K
NOI $15,127 @ 7.0% cap · market cap 4.03%
Second Best
Apartment 5plus
$170.3K
$149.0K – $198.7K
NOI $11,919 @ 7.0% cap · market cap 3.18%
Theoretical Best
Office A
$337.1K
$295.0K – $393.3K
NOI $23,597 @ 7.0% cap · market cap 6.29%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Lease Details
2
Residential units
Location Intelligence
Trade Area within ½ mile
389
Businesses Nearby
Explore this area
Business Placement
Demographics for 33705, FL
27,915
Population
15,171
Households
1.8
Avg Household Size
43
Median Age
36%
College-Educated
92%
High-School Grad
5.6 sq mi
ZIP Area
4,985
Density / Sq Mi
$70,783
Median Household Income
$40,370
Median Earnings
$1,457
Median Rent
$321,500
Median Home Value
Market
Vacancy Rate% for Multifamily in South region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Duplex - Updated two-unit property with a main residence and detached studio, public utilities, and access to central St. Petersburg amenities.
Where is this duplex located?
The property is located at 2521 4TH Street S St Petersburg, FL.
What is the asking price?
The asking price for this property is $374,900.
What are key features of this property?
This property features: 1,296‑square‑foot property on a 0.13‑acre lot; Detached studio apartment accompanies the main residence; Main house roof is brand new
