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Duplex with Detached Apartment
For Sale
$450,000

5401 21ST Avenue S, Gulfport, FL 33707

Residential Income, GULFPORT, FL

Property Size1,528 SF
Lot Size0.22 Acres
Price / SF$294.50
Days on Market9

Property Features for 5401 21ST Avenue S

General Information

Property type Residential Multi Family
Property subtype Duplex
Bedrooms 5
Bathrooms 2
Full bathrooms 2
Rooms Bedroom 2, Bedroom 1, Bedroom 3, Bathroom 2, Bathroom 1, Bedroom 5, Bedroom 4
Interior features Ceiling Fans(s)
Exterior features Fence, Lighting, Sidewalk
Fencing Fenced
Subdivision PASADENA GARDENS GULFVIEW SEC
Directions Gulfport Blvd. S. (22nd Ave. S.) to 56th St., north to address on the left.
Standard status Active
APN 28-31-16-67338-032-0110
Size 1,528 SF
Lot size 0.22 Acres

Taxes and HOA fees

Tax Year 2025
Tax Description PASADENA GARDENS GULFVIEW SEC BLK 32, LOT 11 & E 1/2 OF LOT 12
Tax Annual Amount 6560
Legal Description PASADENA GARDENS GULFVIEW SEC BLK 32, LOT 11 & E 1/2 OF LOT 12

Utilities

Sewer type Public Sewer
Heating system Central, Ductless (Heating)
Cooling system Wall/Window Unit(s), Window Unit(s), Central Air
Water source Public

Amenities

private putting green
covered patio

Building Details

Year built 1945
Building materials Frame
Roof type Shingle
Listing Agency: INVESTMENT FLORIDA REALTY LLC
Listed By: ALEXIS Selby · License #3281964
Added: Sep 4 Changed: Sep 12 Last Checked: Sep 12 at 5:06AM
MLS# W7889437

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 property includes a 3-bedroom, 1-bath cottage and a separate 2-bedroom, 1-bath apartment positioned above a 2-car garage. The residences have independent water and electric meters. The 1,528-square-foot property sits on a 0.22-acre lot with a fully fenced backyard, covered patio, and private putting green. A shingle roof dates to 2018, while the AC units were installed in 2021 and 2025.

Located in Gulfport, the property is near Downtown Gulfport, with restaurants, shops, galleries, entertainment, the waterfront district, and community events nearby. Public water and public sewer serve the property. Frame construction, central heating, ductless heating, central air, and wall/window cooling units are included among the existing features.

Key Highlights

  • Two residences: a 3‑bedroom, 1‑bath cottage and a 2‑bedroom, 1‑bath apartment
  • Apartment located above a spacious 2‑car garage
  • Separate water and electric meters for both residences

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
$17,835
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
3.96%
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%
$356,700 $356.7K
Cap Rate 7%
$254,786 $254.8K
Cap Rate 9%
$198,167 $198.2K
Market Conditions
NOI Build-Up for 1,528 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
$27.3K $17.88/SF
− Vacancy
−$1.8K −$1.21/SF
EGI
$25.5K $16.67/SF
− OpEx
−$7.6K −$5.00/SF
NOI
$17.8K $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%
$356,700
Cap Rate 7%
$254,786
Cap Rate 9%
$198,167

Alternative Uses

Best Use
Multifamily LT 5
$254.8K
$222.9K – $297.3K (±1% cap)
NOI $17,835 @ 7.0% cap · market cap 3.96%
Second Best
Apartment 5plus
$200.8K
$175.7K – $234.2K (±1% cap)
NOI $14,053 @ 7.0% cap · market cap 3.12%
Theoretical Best
Office A
$397.4K
$347.8K – $463.7K (±1% cap)
NOI $27,821 @ 7.0% cap · market cap 6.18%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

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Current Use

Duplexes

Suggested Use

Top Pick Dental Office Parking Lot & Garage HVAC Service Building Supply (Bike/Boat/Book/etc) Store Bakery

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

2
Residential units
Yes
Utilities to site

Location Intelligence

Trade Area within ½ mile

855
Businesses Nearby

Demographics for 33707, FL

24,646
Population
16,579
Households
1.5
Avg Household Size
58
Median Age
40%
College-Educated
95%
High-School Grad
5.3 sq mi
ZIP Area
4,650
Density / Sq Mi
$68,560
Median Household Income
$45,513
Median Earnings
$1,512
Median Rent
$344,600
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Vacancy Rate% for Multifamily in South region

8.5% 2022
10.2% 2023
11.4% 2024
11.3% 2025
Rey
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Frequently Asked Questions

What type of property is this?
Duplex - Flexible two-residence property with separate utility metering, a fenced yard, covered patio, and private putting green.
Where is this duplex located?
The property is located at 5401 21ST Avenue S Gulfport, FL.
What is the asking price?
The asking price for this property is $450,000.
What are key features of this property?
This property features: Two residences: a 3‑bedroom, 1‑bath cottage and a 2‑bedroom, 1‑bath apartment; Apartment located above a spacious 2‑car garage; Separate water and electric meters for both residences
More about this property
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