Duplex with Separate Living
75 Liberty Avenue, Rockville Centre, NY 11570
For Sale
$1,649,000
Two residential levels offer distinct layouts, complemented by third-floor bonus space and a private backyard.
Property Size3,062 SF
Price / SF$538.54
Days on Market26
Property Features for 75 Liberty Avenue
General Information
Standard status
Size
Property subtype
Additional Details
Multifamily Units
Taxes and HOA fees
Annual Taxes
Amenities
First Floor Bedroom
First Floor Full Bath
Chefs Kitchen
Crown Molding
Eat-in Kitchen
Entrance Foyer
Formal Dining
High Ceilings
His and Hers Closets
In-Law Floorplan
Kitchen Island
Walk-In Closet(s)
Washer/Dryer Hookup
Building Details
Building Size
Year Built
Buildings
Stories
Units
Listing Agency:
Harms Real Estate Inc
(516) 766-4118
Listed By:
Elizabeth A. Byrne
(516) 521-3634
Source:
Jwsrealtygroup
Added: Oct 20
Changed: Nov 11
Last Checked: Nov 13 at 8:08AM
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 Harms Real Estate Inc
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Investment Insights
Based on property information with market context.
This 3,062-square-foot duplex was entirely reconstructed and provides separate living areas across its first and second floors. The first floor includes an entry foyer, living room, formal dining room, two bedrooms, two full bathrooms, a laundry room, a walk-in closet, and a front porch. Upstairs, an open-concept kitchen connects to a great room, alongside a primary bedroom with an en-suite bath, two additional bedrooms, a full bath with double vanity, and a second laundry area. A third-floor bonus space adds flexibility, while the private backyard offers outdoor space for three-season use.
Built in 1930, the property combines two substantial residential layouts with shared outdoor space and additional room on the top floor.
Built in 1930, the property combines two substantial residential layouts with shared outdoor space and additional room on the top floor.
Key Highlights
- Entirely reconstructed 3,062‑SF duplex
- First floor has two bedrooms, two full bathrooms, laundry, and a formal dining room
- Second floor includes an open kitchen, great room, three bedrooms, and two bathrooms
Financial Insights
Estimated NOI and Cap Rate
NOI / Yr
$58,335
Cap Rate
3.54%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,166,700
$1.2M
Cap Rate 7%
$833,357
$833.4K
Cap Rate 9%
$648,167
$648.2K
Market Conditions
NOI Build-Up for 3,062 SF
Gross rent
$88.2K $28.80/SF
− Vacancy
−$4.9K −$1.58/SF
EGI
$83.3K $27.22/SF
− OpEx
−$25.0K −$8.16/SF
NOI
$58.3K $19.05/SF
Area
Nassau County, NY
Vacancy
5.50%
Lease Rate
$28.80 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,166,700
Cap Rate 7%
$833,357
Cap Rate 9%
$648,167
Alternative Uses
Best Use
Multifamily LT 5
$833.4K
$729.2K – $972.3K
NOI $58,335 @ 7.0% cap · market cap 3.54%
Second Best
Apartment 5plus
$780.3K
$682.7K – $910.3K
NOI $54,618 @ 7.0% cap · market cap 3.31%
Theoretical Best
Specialty Retail
$2.02M
$1.77M – $2.36M
NOI $141,717 @ 7.0% cap · market cap 8.59%
Zoning and permitted uses should be independently verified with authorities.
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Lease Details
2
Residential units
Location Intelligence
Trade Area within ½ mile
2,107
Businesses Nearby
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Business Placement
Demographics for 11570, NY
29,023
Population
11,368
Households
2.6
Avg Household Size
42
Median Age
62%
College-Educated
95%
High-School Grad
3.6 sq mi
ZIP Area
8,062
Density / Sq Mi
$147,784
Median Household Income
$91,332
Median Earnings
$1,804
Median Rent
$786,600
Median Home Value
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Market
Properties on Market for Duplexes in Nassau County
Vacancy Rate% for Multifamily in Northeast region
Frequently Asked Questions
What type of property is this?
Duplex - Two residential levels offer distinct layouts, complemented by third-floor bonus space and a private backyard.
Where is this duplex located?
The property is located at 75 Liberty Avenue Rockville Centre, NY.
What is the asking price?
The asking price for this property is $1,649,000.
What are key features of this property?
This property features: Entirely reconstructed 3,062‑SF duplex; First floor has two bedrooms, two full bathrooms, laundry, and a formal dining room; Second floor includes an open kitchen, great room, three bedrooms, and two bathrooms
