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Waterfront Two-Family Home

66 Sunnyside Ave Winthrop, MA 02152

66 Sunnyside Ave, Winthrop, MA, 02152
$999,888
For Sale
$999,888

Two-story duplex built in 1920 steps from the beach, with enclosed porch, deck, fenced yard, and individually metered electric.

Property Size2,635 SF
Lot Size0.12 Acres
Price / SF$379.46
Days on Market49

Property Features for 66 Sunnyside Ave

General Information

Standard status
Active
Size
2,635 SF
Lot size
0.12 Acres
Property subtype
Multi Family

Building Details

Year Built
1920
Listing agency COM-PRO Real Estate Services, Inc
Listed by Mirna Monterrosa Orellana
Source Madelyngarciarealestate
Added: Jun 3 Updated: Jul 21 at 12:09PM Checked: Jul 21 at 12:09PM

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 COM-PRO Real Estate Services, Inc


Investment Insights

Based on property information with market context.

This two-family waterfront home was built in 1920 and offers a classic two-story layout across approximately 2,635 square feet. The configuration includes five bedrooms and two full baths, along with an enclosed porch and a deck. Outdoor space is complemented by a fenced yard and professional landscaping. Utilities are separately handled with individually metered electric.

The property sits on an approximately 5,227 square foot lot in Winthrop’s Cottage Park area, described as steps from the beach with views of the Bay, harbor, marsh, and ocean. Access to downtown Boston is noted as minutes away via Rt. 1A.

Unit 1 is currently listed as rented for $3,100 per month and Unit 2 for $4,000 per month, with stated gross annual income of $85,200 and a stated net of $76,900.

Key Highlights

  • Waterfront two‑family duplex built in 1920, 2,635 sq ft, in Cottage Park neighborhood steps from the beach
  • Bay, harbor, marsh, and ocean views plus an enclosed porch and deck
  • 5 bedrooms and 2 full baths with a versatile two‑unit layout

Local Financial Insights For Multifamily LT 5

Simulate Cap Rate and NOI

NOI Build-Up
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.

Component $ $/SF
Gross rent $75.9k $28.80
− Vacancy −$4.2k −$1.58
EGI $71.7k $27.22
− OpEx −$21.5k −$8.16
NOI $50.2k $19.05
2,635 SF · lease $28.80/SF/yr · vacancy 5.50% · expense 30.00%

Alternative Uses

Best Use
Multifamily LT 5
$717.1K
$627.5K – $836.7K (±1% cap)
NOI $50,200 @ 7.0% cap · market cap 5.02%
Second Best
Apartment 5plus
$653.9K
$572.2K – $762.9K (±1% cap)
NOI $45,773 @ 7.0% cap · market cap 4.58%
Theoretical Best
Office A
$1.56M
$1.36M – $1.82M (±1% cap)
NOI $109,194 @ 7.0% cap · market cap 10.92%
Zoning and permitted uses should be independently verified with local authorities.

Property Analytics

Location Intelligence

Current Use by Public Records

Duplexes

Suggested Use

Pharmacy Electrical Service (Bike/Boat/Book/etc) Store Furniture & Home Goods HVAC Service Law Firm Big Box & Wholesale Store Storage Facility Carpet & Flooring Store Garden Center

Zoning and permitted uses should be independently verified with local authorities.

FAQs

What type of property is this?
Duplex - Two-story duplex built in 1920 steps from the beach, with enclosed porch, deck, fenced yard, and individually metered electric.
Where is this duplex located?
The property is located at 66 Sunnyside Ave Winthrop, MA.
What is the asking price?
The asking price for this property is $999,888.
What are key features of this property?
This property features: Waterfront two‑family duplex built in 1920, 2,635 sq ft, in Cottage Park neighborhood steps from the beach; Bay, harbor, marsh, and ocean views plus an enclosed porch and deck; 5 bedrooms and 2 full baths with a versatile two‑unit layout
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