Three-Story Triplex
For Sale
$675,000
48 Sea St, Weymouth, MA 02191
MULTI_FAMILY - Weymouth, MA
Property Size2,725 SF
Lot Size0.08 Acres
Price / SF$247.71
Days on Market47
Property Features for 48 Sea St
General Information
Property type
Residential Multi Family
Property subtype
Other
Zoning
85
Bedrooms
5
Bathrooms
3
Full bathrooms
3
Rooms
Bedroom 3, Bathroom 2, Bedroom 2, Bathroom 3, Bedroom 4, Bathroom 1, Bedroom 5, Bedroom 1
Parking
3
Directions
USE GPS
Standard status
Active
APN
M:07 B:100 L:002,270385
Size
2,725 SF
Lot size
0.08 Acres
Taxes and HOA fees
Tax Year
2025
Tax Annual Amount
4193
Building Details
Year built
1900
Floors in Building
3
Number of units
3
Listing Agency:
Keller Williams Realty
(781) 843-3200
Listed By:
Steve Zeboski
(781) 843-3200
Added: Jun 26
Changed: Aug 4
Last Checked: Aug 11 at 10:06PM
MLS# 73542363
Copyright © 2026 MLS Property Information Network Inc. 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 three-story triplex features approximately 2,725+/- square feet of living space and is arranged with five bedrooms and three full bathrooms. The layout includes individual bedrooms along with shared kitchens and bathrooms on the second and third floors, supporting a flexible floor plan for a range of future uses (subject to local approvals). Most recently, the property operated as a residential shelter, offering a foundation for renovation, reconfiguration, or redevelopment.
Set on a 3,273 square foot lot, the building is near beaches, marinas, restaurants, and commuter routes. It is offered for sale together with the abutting property at 52 Sea St.
Built in 1900, the property’s configuration and upper-floor layout make it well-suited for owners seeking a live/work or occupancy model, or for investors and developers planning interior updates and tenant-ready repositioning.
Set on a 3,273 square foot lot, the building is near beaches, marinas, restaurants, and commuter routes. It is offered for sale together with the abutting property at 52 Sea St.
Built in 1900, the property’s configuration and upper-floor layout make it well-suited for owners seeking a live/work or occupancy model, or for investors and developers planning interior updates and tenant-ready repositioning.
Key Highlights
- Approximately 2,725+/- SF living space in a three‑story triplex
- Five private bedrooms and three full bathrooms
- Second and third floors include individual bedrooms with shared kitchens and shared bathrooms
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
$48,814
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
7.23%
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%
$976,280
$976.3K
Cap Rate 7%
$697,343
$697.3K
Cap Rate 9%
$542,378
$542.4K
Market Conditions
NOI Build-Up for 2,725 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
$73.6K $27.00/SF
− Vacancy
−$3.8K −$1.41/SF
EGI
$69.7K $25.59/SF
− OpEx
−$20.9K −$7.68/SF
NOI
$48.8K $17.91/SF
Area
Norfolk County, MA
Vacancy
5.22%
Lease Rate
$27.00 /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%
$976,280
Cap Rate 7%
$697,343
Cap Rate 9%
$542,378
Alternative Uses
Best Use
Multifamily LT 5
$697.3K
$610.2K – $813.6K
NOI $48,814 @ 7.0% cap · market cap 7.23%
Second Best
Apartment 5plus
$643.4K
$563.0K – $750.7K
NOI $45,039 @ 7.0% cap · market cap 6.67%
Theoretical Best
Office A
$1.61M
$1.41M – $1.88M
NOI $112,923 @ 7.0% cap · market cap 16.73%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Location Intelligence
Trade Area within ½ mile
323
Businesses Nearby
Explore this area
Business Placement
Demographics for 02191, MA
8,271
Population
3,704
Households
2.2
Avg Household Size
48
Median Age
43%
College-Educated
95%
High-School Grad
1.8 sq mi
ZIP Area
4,595
Density / Sq Mi
$116,496
Median Household Income
$67,043
Median Earnings
$1,833
Median Rent
$492,200
Median Home Value
Market
Vacancy Rate% for Multifamily in Northeast region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Triplex - Three-story triplex with five bedrooms and shared kitchens and bathrooms on upper floors, on a waterfront-adjacent lot in Weymouth.
Where is this triplex located?
The property is located at 48 Sea St Weymouth, MA.
What is the asking price?
The asking price for this property is $675,000.
What are key features of this property?
This property features: Approximately 2,725+/- SF living space in a three‑story triplex; Five private bedrooms and three full bathrooms; Second and third floors include individual bedrooms with shared kitchens and shared bathrooms
