Three-Unit Townhouse
For Sale
$1,150,000
18 Suffolk St, Chelsea, MA 02150
Includes a three-bedroom, two-bath home, a two-bedroom townhouse, and a one-bedroom walk-in apartment.
Property Size3,436 SF
Price / SF$334.69
Days on Market8
Property Features for 18 Suffolk St
General Information
Standard status
Active
Size
3,436 SF
Total Parking Spaces
3
Property subtype
Residential Income
Zoning
R3
Net Operating Income
$55,700
Additional Details
Multifamily Units
3
Taxes and HOA fees
Annual Taxes
$10,866
Building Details
Building Size
3,436 SF
Year Built
1987
Buildings
1
Listing Agency:
Mastrocola Management, Inc.
Listed By:
Frank Mastrocola
(781) 396-1010
Source:
413realestate
Added: Sep 16
Changed: Sep 18
Last Checked: Sep 22 at 1:55PM
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 Mastrocola Management, Inc.
Investment Insights
Based on property information with market context.
This 3,436-square-foot triplex, built in 1987, contains three distinct residential layouts. The largest unit offers three bedrooms, two full baths, and natural-stained doors and trim. A separate two-bedroom townhouse and a one-bedroom walk-in apartment complete the property, providing a range of unit sizes within one building.
Located at 18 Suffolk Street in Chelsea, the property is described as being in a waterfront setting. The building previously operated as three condominiums, and the prior association documents may provide a basis for exploring a similar structure, subject to attorney review. Unit 1 is currently vacant and was digitally staged for photography.
Located at 18 Suffolk Street in Chelsea, the property is described as being in a waterfront setting. The building previously operated as three condominiums, and the prior association documents may provide a basis for exploring a similar structure, subject to attorney review. Unit 1 is currently vacant and was digitally staged for photography.
Key Highlights
- 3,436‑square‑foot triplex at 18 Suffolk Street, Chelsea, MA 02150
- Built in 1987
- Unit mix includes three‑bedroom, two‑bedroom, and one‑bedroom residences
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
$65,460
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
5.69%
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%
$1,309,200
$1.3M
Cap Rate 7%
$935,143
$935.1K
Cap Rate 9%
$727,333
$727.3K
Market Conditions
NOI Build-Up for 3,436 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
$99.0K $28.80/SF
− Vacancy
−$5.4K −$1.58/SF
EGI
$93.5K $27.22/SF
− OpEx
−$28.1K −$8.16/SF
NOI
$65.5K $19.05/SF
Area
Suffolk County, MA
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 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%
$1,309,200
Cap Rate 7%
$935,143
Cap Rate 9%
$727,333
Alternative Uses
Best Use
Multifamily LT 5
$935.1K
$818.3K – $1.09M
NOI $65,460 @ 7.0% cap · market cap 5.69%
Second Best
Apartment 5plus
$852.7K
$746.1K – $994.8K
NOI $59,687 @ 7.0% cap · market cap 5.19%
Theoretical Best
Office A
$2.03M
$1.78M – $2.37M
NOI $142,387 @ 7.0% cap · market cap 12.38%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
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Open Analytics
Current Use
Lease Details
3
Residential units
Location Intelligence
Trade Area within ½ mile
1,843
Businesses Nearby
Explore this area
Business Placement
Demographics for 02150, MA
40,721
Population
14,162
Households
2.9
Avg Household Size
34
Median Age
22%
College-Educated
69%
High-School Grad
2.2 sq mi
ZIP Area
18,510
Density / Sq Mi
$72,122
Median Household Income
$41,046
Median Earnings
$1,861
Median Rent
$476,500
Median Home Value
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Cap Rate, Value Estimation, Potential NOI and more
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Market
Vacancy Rate% for Multifamily in Northeast region
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Frequently Asked Questions
What type of property is this?
Triplex - Includes a three-bedroom, two-bath home, a two-bedroom townhouse, and a one-bedroom walk-in apartment.
Where is this triplex located?
The property is located at 18 Suffolk St Chelsea, MA.
What is the asking price?
The asking price for this property is $1,150,000.
What are key features of this property?
This property features: 3,436‑square‑foot triplex at 18 Suffolk Street, Chelsea, MA 02150; Built in 1987; Unit mix includes three‑bedroom, two‑bedroom, and one‑bedroom residences
