Brick Duplex with Private
New
For Sale
$875,000
41 Alton Place, Brooklyn, NY 11210
Residential, Duplex, Brooklyn, NY
Property Size1,870 SF
Lot Size0.05 Acres
Price / SF$467.91
Days on Market3
Property Features for 41 Alton Place
General Information
Property type
Residential
Property subtype
Duplex
Zoning
R5
Bedrooms
3
Bathrooms
2
Full bathrooms
1
Half bathrooms
1
Rooms
Bedroom 3, Bedroom 2, Bathroom 2, Bedroom 1, Bathroom 1
Patio and Porch features
Porch
Interior features
A/C Unit - Window, Dryer, Garage Door Opener(s), Laundry Area, Microwave, Porch, Refrigerator, Stove, Terrace, Washer, Window Treatments
Basement
Finished, Full
Subdivision
Flatlands
Standard status
Active
Size
1,870 SF
Lot size
0.05 Acres
Taxes and HOA fees
Tax Annual Amount
6940
Building Details
Year built
1945
Floors in Building
2
Flooring type
Hardwood, Tile
Building materials
Brick
Roof type
Flat
Architectural style
Other
Listing Agency:
Remax Top Nest Real Estate
(646) 828-6378
Listed By:
Yat Chi (Stanley) Ng
(718) 612-3088
Added: Aug 31
Last Checked: Sep 2 at 1:06PM
MLS# 504031
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.
Investment Insights
Based on property information with market context.
This R5-zoned duplex in Brooklyn contains 1,870 square feet on a 0.0459-acre lot. Built in 1945, the two-story brick structure includes a full basement, private driveway, and basement garage. Interior features include three bedrooms, two bathrooms, hardwood and tile flooring, window-unit A/C, a laundry area, and a kitchen equipped with a refrigerator, stove, and microwave.
The property is located at 41 Alton Place in Brooklyn, NY 11210. Nearby neighborhood amenities include shopping, dining, parks, and daily services. Transit access includes the 2 and 5 trains at Flatbush Avenue–Brooklyn College, with B and Q service available in the surrounding area. The property also includes a porch, terrace, flat roof, washer, dryer, and garage door opener(s).
The property is located at 41 Alton Place in Brooklyn, NY 11210. Nearby neighborhood amenities include shopping, dining, parks, and daily services. Transit access includes the 2 and 5 trains at Flatbush Avenue–Brooklyn College, with B and Q service available in the surrounding area. The property also includes a porch, terrace, flat roof, washer, dryer, and garage door opener(s).
Key Highlights
- Duplex with 1,870 square feet of property size
- 0.0459‑acre lot at 41 Alton Place, Brooklyn, NY 11210
- R5 zoning and 1945 construction
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
$65,491
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
7.48%
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%
$1,309,820
$1.3M
Cap Rate 7%
$935,586
$935.6K
Cap Rate 9%
$727,678
$727.7K
Market Conditions
NOI Build-Up for 1,870 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
$95.4K $51.00/SF
− Vacancy
−$1.8K −$0.97/SF
EGI
$93.6K $50.03/SF
− OpEx
−$28.1K −$15.01/SF
NOI
$65.5K $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%
$1,309,820
Cap Rate 7%
$935,586
Cap Rate 9%
$727,678
Alternative Uses
Best Use
Multifamily LT 5
$935.6K
$818.6K – $1.09M
NOI $65,491 @ 7.0% cap · market cap 7.48%
Second Best
Apartment 5plus
$815.6K
$713.6K – $951.5K
NOI $57,089 @ 7.0% cap · market cap 6.52%
Theoretical Best
Specialty Retail
$1.55M
$1.35M – $1.81M
NOI $108,385 @ 7.0% cap · market cap 12.39%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Lease Details
1
Residential units
Location Intelligence
Trade Area within ½ mile
4,051
Businesses Nearby
Explore this area
Business Placement
Demographics for 11210, NY
62,805
Population
22,817
Households
2.8
Avg Household Size
38
Median Age
39%
College-Educated
89%
High-School Grad
1.6 sq mi
ZIP Area
39,253
Density / Sq Mi
$83,261
Median Household Income
$50,286
Median Earnings
$1,734
Median Rent
$817,600
Median Home Value
Market
Vacancy Rate% for Multifamily in Northeast region
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.
Frequently Asked Questions
What type of property is this?
Duplex - Two-story brick property with a full basement, private driveway, and basement garage.
Where is this duplex located?
The property is located at 41 Alton Place Brooklyn, NY.
What is the asking price?
The asking price for this property is $875,000.
What are key features of this property?
This property features: Duplex with 1,870 square feet of property size; 0.0459‑acre lot at 41 Alton Place, Brooklyn, NY 11210; R5 zoning and 1945 construction
