Renovated Triplex with 3-Car
For Sale
$1,525,000
678 Mamaroneck Ave, Mamaroneck, NY 10543
Fully occupied triplex with three apartments, granite kitchens, split HVAC, and a 3-car garage.
Property Size3,474 SF
Days on Market95
Property Features for 678 Mamaroneck Ave
General Information
Standard status
Active
Size
3,474 SF
Total Parking Spaces
3
Property subtype
Investment
Occupancy
100%
Additional Details
Multifamily Units
3
Taxes and HOA fees
Annual Taxes
$20,766
Amenities
security cameras
split heating & cooling units
washer/dryer in each apartment
granite countertops
separate meters
Building Details
Building Size
3,474 SF
Year Built
1922
Units
3
Tenancy
Multi
Listed By:
Yehuda Itzkowitz
(845) 323-7387
Source:
Elliman
Added: Jun 3
Changed: Aug 14
Last Checked: Sep 5 at 8:53AM
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 Yehuda Itzkowitz
Investment Insights
Based on property information with market context.
This fully occupied triplex features three apartments and a 3-car garage. Each unit includes a kitchen with granite countertops, a living room, and three bedrooms, along with a back porch on every floor. Heating and cooling are provided by split units in each room, and washer/dryer are included in all apartments. The property was fully renovated about three years ago, including new plumbing and electric throughout. Security cameras are installed in common areas and exterior locations, and each tenant has separate meters.
The building is positioned near public transit and shopping, with walkable access indicated by Walk Score of 80 and some transit access indicated by Transit Score of 41. BikeScore is listed at 53. Please note the available photos were taken about three years ago, before the current tenants moved in.
The building is positioned near public transit and shopping, with walkable access indicated by Walk Score of 80 and some transit access indicated by Transit Score of 41. BikeScore is listed at 53. Please note the available photos were taken about three years ago, before the current tenants moved in.
Key Highlights
- Fully occupied triplex built in 1922 with 3 apartments and a 3‑car garage.
- Over $145,000 in yearly rental income; separate meters for each tenant.
- Each apartment has a kitchen with granite countertops, living room, and 3 bedrooms.
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
$67,666
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
4.44%
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%
$1,353,320
$1.4M
Cap Rate 7%
$966,657
$966.7K
Cap Rate 9%
$751,844
$751.8K
Market Conditions
NOI Build-Up for 3,474 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
$103.4K $29.76/SF
− Vacancy
−$6.7K −$1.93/SF
EGI
$96.7K $27.83/SF
− OpEx
−$29.0K −$8.35/SF
NOI
$67.7K $19.48/SF
Area
Westchester County, NY
Vacancy
6.50%
Lease Rate
$29.76 /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%
$1,353,320
Cap Rate 7%
$966,657
Cap Rate 9%
$751,844
Alternative Uses
Best Use
Multifamily LT 5
$966.7K
$845.8K – $1.13M
NOI $67,666 @ 7.0% cap · market cap 4.44%
Second Best
Apartment 5plus
$851.2K
$744.8K – $993.1K
NOI $59,585 @ 7.0% cap · market cap 3.91%
Theoretical Best
Retail
$1.05M
$918.2K – $1.22M
NOI $73,456 @ 7.0% cap · market cap 4.82%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Lease Details
3
Residential units
100%
Occupancy
Multi-tenant
Tenancy
Location Intelligence
Trade Area within ½ mile
1,722
Businesses Nearby
Explore this area
Business Placement
Demographics for 10543, NY
21,296
Population
8,141
Households
2.6
Avg Household Size
41
Median Age
57%
College-Educated
89%
High-School Grad
4.3 sq mi
ZIP Area
4,953
Density / Sq Mi
$128,418
Median Household Income
$69,176
Median Earnings
$2,030
Median Rent
$710,000
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?
Triplex - Fully occupied triplex with three apartments, granite kitchens, split HVAC, and a 3-car garage.
Where is this triplex located?
The property is located at 678 Mamaroneck Ave Mamaroneck, NY.
What is the asking price?
The asking price for this property is $1,525,000.
What are key features of this property?
This property features: Fully occupied triplex built in 1922 with 3 apartments and a 3‑car garage.; Over $145,000 in yearly rental income; separate meters for each tenant.; Each apartment has a kitchen with granite countertops, living room, and 3 bedrooms.
