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Water-Access Duplex
For Sale
$699,000

1433 Sunset Road, Big Pine Key, FL 33043

Residential, Big Pine Key, FL

Property Size1,924 SF
Lot Size0.18 Acres
Price / SF$363.31
Days on Market370

Property Features for 1433 Sunset Road

General Information

Property type Residential Multi Family
Property subtype Duplex
Zoning ISD - Improved Sup Duplex
Bedrooms 4
Bathrooms 3
Full bathrooms 2
Half bathrooms 1
Rooms Bedroom 3, Bathroom 2, Bathroom 3, Bathroom 1, Bedroom 4, Bedroom 1, Bedroom 2
Window features Aluminum Frames
Patio and Porch features Patio
Pets allowed Yes
Interior features Sun/Florida Room
Exterior features Storage
Appliances Washer, Dryer, Dishwasher, Refrigerator, Oven, Microwave
Subdivision Tropical Bay (30.5)
Standard status Active
APN 00313400-000100
Size 1,924 SF
Lot size 0.18 Acres

Taxes and HOA fees

Tax Year 2024
Tax Description TROPICAL BAY-SECOND ADDN BIG PINE KEY PB5-73 PT TRACT C OR458-437-438 OR487-84 OR672-550 OR1347-1475 OR2504-1118 OR3068
Tax Annual Amount 5748
HOA Fee $275 Monthly
Legal Description TROPICAL BAY-SECOND ADDN BIG PINE KEY PB5-73 PT TRACT C OR458-437-438 OR487-84 OR672-550 OR1347-1475 OR2504-1118 OR3068

Utilities

Utilities Cable Available
Cooling system Window Unit(s), Wall/Window Unit(s)
Water front 1

Building Details

Year built 1968
Floors in Building 1
Flooring type Tile, Terrazzo
Building materials CBS
Roof type Tar/Gravel
Additional Structures Storage
Listing Agency: Action Keys Realty of the Lower FL Keys LLC
Listed By: Cheryl Moses · License #648470
Added: Sep 8, 2025 Changed: Sep 3 Last Checked: Sep 12 at 4:06PM
MLS# 616469

Copyright © 2026 Marathon and Lower Keys Association of Realtors. 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 two-unit duplex contains 1,924 square feet on a 0.18-acre lot and was built in 1968 with CBS construction. The property includes tile and terrazzo flooring, a sunroom, patio, storage, and furnishings. Appliances include a washer, dryer, dishwasher, refrigerator, oven, and microwave, while cooling is provided by wall or window units.

Direct access to Bogie Channel supports boating use, and the lot is improved with a full seawall. The property is located at 1433 Sunset Road in Big Pine Key, Florida, and carries ISD - Improved Sup Duplex zoning. Cable is available at the property.

Key Highlights

  • 1,924‑square‑foot duplex on a 0.18‑acre lot
  • Direct access to Bogie Channel with full seawall
  • CBS construction; built in 1968

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
$32,231
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
4.61%
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%
$644,620 $644.6K
Cap Rate 7%
$460,443 $460.4K
Cap Rate 9%
$358,122 $358.1K
Market Conditions
NOI Build-Up for 1,924 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
$49.2K $25.56/SF
− Vacancy
−$3.1K −$1.63/SF
EGI
$46.0K $23.93/SF
− OpEx
−$13.8K −$7.18/SF
NOI
$32.2K $16.75/SF
Area
Monroe County, FL
Vacancy
6.37%
Lease Rate
$25.56 /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%
$644,620
Cap Rate 7%
$460,443
Cap Rate 9%
$358,122

Alternative Uses

Best Use
Multifamily LT 5
$460.4K
$402.9K – $537.2K (±1% cap)
NOI $32,231 @ 7.0% cap · market cap 4.61%
Second Best
Apartment 5plus
$426.5K
$373.2K – $497.6K (±1% cap)
NOI $29,856 @ 7.0% cap · market cap 4.27%
Theoretical Best
Office A
$773.9K
$677.2K – $902.9K (±1% cap)
NOI $54,174 @ 7.0% cap · market cap 7.75%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

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Current Use

Duplexes

Suggested Use

Top Pick Restaurant Electrical Service HVAC Service Gym & Fitness Center Daycare Center Veterinary Clinic

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

Location Intelligence

Trade Area within ½ mile

33
Businesses Nearby

Demographics for 33043, FL

4,661
Population
3,003
Households
1.6
Avg Household Size
54
Median Age
27%
College-Educated
94%
High-School Grad
16.6 sq mi
ZIP Area
281
Density / Sq Mi
$92,955
Median Household Income
$47,194
Median Earnings
$2,017
Median Rent
$563,700
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
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Frequently Asked Questions

What type of property is this?
Duplex - Furnished two-unit property with direct access to Bogie Channel, a full seawall, and storage space.
Where is this duplex located?
The property is located at 1433 Sunset Road Big Pine Key, FL.
What is the asking price?
The asking price for this property is $699,000.
What are key features of this property?
This property features: 1,924‑square‑foot duplex on a 0.18‑acre lot; Direct access to Bogie Channel with full seawall; CBS construction; built in 1968
More about this property
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