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Renovated Two-Family Duplex
New
For Sale
$1,180,000

203 Gelston Ave, Brooklyn, NY 11209

Semi-detached home with two matching residential units, separate mechanical systems, and a finished basement with its own entrance.

Property Size1,080 SF
Days on Market4

Property Features for 203 Gelston Ave

General Information

Standard status Active
Size 1,080 SF
Elevators No
Property subtype Multi Family

Site & Location

Highway Access No
Road Access No
Public Transit No
Utilities to Site No

Additional Details

Furnished No
Opportunity Zone No
Sprinkler System No

Taxes and HOA fees

Annual Taxes $6,067

Building Details

Building Size 1,080 SF
Year Built 1899
Construction semi-detached
Abandoned No
Listing Agency: Womcore LLC dba Remax Edge
Listed By: Allan H. Zhu · License #AHZ7089
Source: Elliman
Added: Aug 8 Changed: Aug 9 Last Checked: Aug 11 at 8:40AM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Womcore LLC dba Remax Edge

Investment Insights

Based on property information with market context.

This semi-detached duplex contains two residential units with matching layouts. Each floor includes a living room, dining room and kitchen combination, two bedrooms, and a full bathroom. The first-floor unit is vacant, while the second-floor unit is tenant occupied. A finished basement is also vacant and has a separate entrance leading from the side of the property toward the backyard.

The property was renovated from the bottom to the top 4 years ago, including kitchens, bathrooms, and flooring. Separate boilers and hot water heaters serve the units. The lot measures 20’ X 116’, and the building measures 18’ X 32’. The property is near the R train, local and express bus service, highway access, restaurants, cafes, stores, shopping on 5th Ave, parks, playgrounds, and tennis and basketball courts.

Key Highlights

  • Two‑family semi‑detached duplex with matching two‑bedroom layouts
  • Renovated from bottom to top 4 years ago with updated kitchens, bathrooms, and floors
  • First‑floor unit vacant; second‑floor unit tenant occupied

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
$37,823
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
3.21%
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%
$756,460 $756.5K
Cap Rate 7%
$540,329 $540.3K
Cap Rate 9%
$420,256 $420.3K
Market Conditions
NOI Build-Up for 1,080 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
$55.1K $51.00/SF
− Vacancy
−$1.0K −$0.97/SF
EGI
$54.0K $50.03/SF
− OpEx
−$16.2K −$15.01/SF
NOI
$37.8K $35.02/SF
Area
Brooklyn, NY
Vacancy
1.90%
Lease Rate
$51.00 /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%
$756,460
Cap Rate 7%
$540,329
Cap Rate 9%
$420,256

Alternative Uses

Best Use
Multifamily LT 5
$540.3K
$472.8K – $630.4K (±1% cap)
NOI $37,823 @ 7.0% cap · market cap 3.21%
Second Best
Apartment 5plus
$471.0K
$412.1K – $549.5K (±1% cap)
NOI $32,971 @ 7.0% cap · market cap 2.79%
Theoretical Best
Specialty Retail
$894.2K
$782.5K – $1.04M (±1% cap)
NOI $62,597 @ 7.0% cap · market cap 5.30%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Duplexes

Suggested Use

Top Pick Law Firm Parking Lot & Garage Real Estate Agency Hotel & Motel Big Box & Wholesale Store HVAC Service

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

3,469
Businesses Nearby

Demographics for 11209, NY

73,239
Population
33,286
Households
2.2
Avg Household Size
40
Median Age
53%
College-Educated
90%
High-School Grad
2.1 sq mi
ZIP Area
34,876
Density / Sq Mi
$92,656
Median Household Income
$62,455
Median Earnings
$1,857
Median Rent
$905,700
Median Home Value

Market

Vacancy Rate% for Multifamily in Northeast region

4% 2022
4.6% 2023
5.3% 2024
5.6% 2025
Rey
Questions? Ask Rey
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Frequently Asked Questions

What type of property is this?
Duplex - Semi-detached home with two matching residential units, separate mechanical systems, and a finished basement with its own entrance.
Where is this duplex located?
The property is located at 203 Gelston Ave Brooklyn, NY.
What is the asking price?
The asking price for this property is $1,180,000.
What are key features of this property?
This property features: Two‑family semi‑detached duplex with matching two‑bedroom layouts; Renovated from bottom to top 4 years ago with updated kitchens, bathrooms, and floors; First‑floor unit vacant; second‑floor unit tenant occupied
More about this property
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