Duplex with Detached
New
For Sale
$649,900
120 MOUNTAIN AVE, Somerville, NJ 08876
Multi-Family, 2-Two Story, Somerville Boro, NJ
Property Size2,119 SF
Lot Size0.25 Acres
Price / SF$306.70
Days on Market6
Property Features for 120 MOUNTAIN AVE
General Information
Property type
Residential Multi Family
Property subtype
Other
Bedrooms
5
Bathrooms
2
Full bathrooms
2
Rooms
Bedroom 4, Bedroom 5, Bathroom 2, Bedroom 2, Bedroom 3, Basement, Bathroom 1, Bedroom 1
Parking
2
Patio and Porch features
Porch
Interior features
Carbon Monoxide Detector, Wood Floors
Exterior features
Open Porch(es), Sidewalk
Elementary school
VAN DEVEER
Middle school
SOMERVILLE
High school
SOMERVILLE
Directions
Corner of Mountain and West Summit
Standard status
Active
Size
2,119 SF
Lot size
0.25 Acres
Taxes and HOA fees
Tax Year
2026
Tax Annual Amount
13188
Utilities
Sewer type
Public Sewer
Heating system
Forced Air
Cooling system
Ceiling Fan(s), Ductless
Water source
Public
Amenities
covered porch
hardwood floors
built-in shelving
gas fireplace
sun parlor
updated kitchen
granite countertops
tile backsplash
pantry
separate laundry hookups
mini-split system
professional waterproofed basement
perennial flower and vegetable gardens
Building Details
Year built
1909
Floors in Building
2
Number of units
2
Roof type
Shingle
Architectural style
Other
Buildings
1
Listing Agency:
RE/MAX CLASSIC GROUP · RE/MAX International
(908) 698-4500
Listed By:
KAREN BENDALL · License #229749
(908) 231-0700
Added: Nov 1
Changed: Nov 5
Last Checked: Nov 6 at 8:06AM
MLS# 4062260
Copyright © 2026 Garden State MLS, LLC. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
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Investment Insights
Based on property information with market context.
This 2,119-square-foot duplex, built in 1909, contains two apartments with a combined five bedrooms. The first spans two levels and includes three bedrooms, a walk-in closet, formal dining room, living room, den, and updated kitchen with stainless steel appliances. The second has two bedrooms, a gas fireplace with a stone mantel, a sun parlor, and a galley kitchen with granite counters, breakfast bar, tile backsplash, and pantry. Both units have updated bathrooms. A professionally waterproofed basement provides separate laundry hookups and interior and exterior access. Heating includes a newer gas furnace in one unit and a ductless mini-split system in the other.
The property occupies 0.2468 acres in Somerville’s Historic District. Exterior features include a covered porch, detached two-car garage, and perennial flower and vegetable gardens. Downtown shops, restaurants, community events, and a train station with service to New York City are within walking distance; major highways are also accessible.
The property occupies 0.2468 acres in Somerville’s Historic District. Exterior features include a covered porch, detached two-car garage, and perennial flower and vegetable gardens. Downtown shops, restaurants, community events, and a train station with service to New York City are within walking distance; major highways are also accessible.
Key Highlights
- Two apartments with five bedrooms total
- 2,119 square feet on a 0.2468‑acre lot
- Detached two‑car garage and covered porch
Financial Insights
Estimated NOI and Cap Rate
NOI / Yr
$30,242
Cap Rate
4.65%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$604,840
$604.8K
Cap Rate 7%
$432,029
$432.0K
Cap Rate 9%
$336,022
$336.0K
Market Conditions
NOI Build-Up for 2,119 SF
Gross rent
$45.8K $21.60/SF
− Vacancy
−$2.6K −$1.21/SF
EGI
$43.2K $20.39/SF
− OpEx
−$13.0K −$6.12/SF
NOI
$30.2K $14.27/SF
Area
Somerset County, NJ
Vacancy
5.61%
Lease Rate
$21.60 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$604,840
Cap Rate 7%
$432,029
Cap Rate 9%
$336,022
Alternative Uses
Best Use
Multifamily LT 5
$432.0K
$378.0K – $504.0K
NOI $30,242 @ 7.0% cap · market cap 4.65%
Second Best
Apartment 5plus
$376.0K
$329.0K – $438.7K
NOI $26,321 @ 7.0% cap · market cap 4.05%
Theoretical Best
Office A
$553.3K
$484.2K – $645.5K
NOI $38,732 @ 7.0% cap · market cap 5.96%
Zoning and permitted uses should be independently verified with authorities.
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Lease Details
2
Residential units
Yes
Highway access
Location Intelligence
Trade Area within ½ mile
1,973
Businesses Nearby
Explore this area
Business Placement
Demographics for 08876, NJ
22,849
Population
9,717
Households
2.4
Avg Household Size
40
Median Age
56%
College-Educated
94%
High-School Grad
16.0 sq mi
ZIP Area
1,428
Density / Sq Mi
$120,823
Median Household Income
$70,464
Median Earnings
$1,776
Median Rent
$468,400
Median Home Value
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Market
Vacancy Rate% for Multifamily in Northeast region
Frequently Asked Questions
What type of property is this?
Duplex - Two apartments offer distinct layouts, updated baths, and separate laundry hookups in the basement.
Where is this duplex located?
The property is located at 120 MOUNTAIN AVE Somerville, NJ.
What is the asking price?
The asking price for this property is $649,900.
What are key features of this property?
This property features: Two apartments with five bedrooms total; 2,119 square feet on a 0.2468‑acre lot; Detached two‑car garage and covered porch
