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For Sale
$799,000

621 E 43rd Street, Brooklyn, NY 11203

Residential, Duplex, Brooklyn, NY

Property Size1,280 SF
Lot Size0.05 Acres
Price / SF$624.22
Days on Market12

Property Features for 621 E 43rd Street

General Information

Property type Residential
Property subtype Duplex
Zoning R4
Bedrooms 3
Bathrooms 3
Full bathrooms 2
Rooms Bedroom 1, Bathroom 2, Bathroom 3, Bedroom 3, Bedroom 2, Bathroom 1
Interior features A/C Unit - Window, Alarm, Refrigerator, Stove
Basement Full
Subdivision East Flatbush
Standard status Active
Size 1,280 SF
Lot size 0.05 Acres

Taxes and HOA fees

Tax Annual Amount 6351

Building Details

Year built 1930
Floors in Building 2
Flooring type Carpet
Building materials Brick
Architectural style Other
Listing Agency: Gosen Properties
Listed By: Emmanuel Victor
Added: Aug 13 Changed: Aug 23 Last Checked: Aug 24 at 8:06PM
MLS# 503807

Copyright © 2026 Brooklyn New York Multiple Listing Service. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

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
$39,077
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
4.89%
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%
$781,540 $781.5K
Cap Rate 7%
$558,243 $558.2K
Cap Rate 9%
$434,189 $434.2K
Market Conditions
NOI Build-Up for 1,280 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
$72.5K $56.64/SF
− Vacancy
−$1.4K −$1.13/SF
EGI
$71.0K $55.51/SF
− OpEx
−$32.0K −$24.98/SF
NOI
$39.1K $30.53/SF
Area
Brooklyn, NY
Vacancy
2.00%
Lease Rate
$56.64 /SF/Yr
Expense Ratio
45.00%
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%
$781,540
Cap Rate 7%
$558,243
Cap Rate 9%
$434,189

Alternative Uses

Best Use
Apartment 5plus
$558.2K
$488.5K – $651.3K (±1% cap)
NOI $39,077 @ 7.0% cap · market cap 4.89%
Second Best
no second resolved use
Theoretical Best
Specialty Retail
$1.06M
$927.4K – $1.24M (±1% cap)
NOI $74,189 @ 7.0% cap · market cap 9.29%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Single family properties

Suggested Use

Top Pick Law Firm Real Estate Agency Parking Lot & Garage Gym & Fitness Center Skin Care Clinic Acupuncture

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

Location Intelligence

Trade Area within ½ mile

1,913
Businesses Nearby

Demographics for 11203, NY

81,824
Population
33,434
Households
2.4
Avg Household Size
41
Median Age
26%
College-Educated
88%
High-School Grad
2.1 sq mi
ZIP Area
38,964
Density / Sq Mi
$68,028
Median Household Income
$47,302
Median Earnings
$1,566
Median Rent
$677,700
Median Home Value
Rey
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.

Frequently Asked Questions

Where is this single family property located?
The property is located at 621 E 43rd Street Brooklyn, NY.
What is the asking price?
The asking price for this property is $799,000.
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