Observer
Building report · Winthrop Highlands, Winthrop

1 Seal Harbor Rd

Winthrop, MA 02152

6 condos sold at 1 Seal Harbor Rd in the past 12 months, for a typical $563K, or $526 a square foot. Right now, 5 are for sale and 1 is for rent.

  • 1983 built
  • 127 units
  • 9 floors with homes
  • #113 in Greater Boston by condo sales
1 Seal Harbor Rd, Unit 916: listing photo
Unit 916, for sale at $699,999. Listed by Meg Grady, The Persac Group, LLC. MLS #73576630.
$563K
typical sale price, past 12 months
$526
per square foot
30 days
typical time to an accepted offer
33%
sold for asking or more
5
for sale now
$832
typical monthly condo fee

For sale now5 units, 3.9% of the building

  • Unit 916: listing photo

    $699,999

    Unit 916, floor 9

    2 bed · 2 bath · 1,417 sq ft

    $494/sq ft · 56 days listed · $1,073/mo fee

    Active · Condo · MLS #73576630
    1 Seal Harbor #916, Winthrop, MA
    Listed by Meg Grady, The Persac Group, LLC

  • Unit 815: listing photo

    $599,000Cut $50K

    Unit 815, floor 8

    2 bed · 2 bath · 1,203 sq ft

    $498/sq ft · 150 days listed · $911/mo fee

    Active · Condo · MLS #73535066
    1 Seal Harbor Rd #815, Winthrop, MA
    Listed by Peggie Gilbert, Coldwell Banker Peggy Carter Team

  • Unit 615: listing photo

    $549,999Cut $50K

    Unit 615, floor 6

    2 bed · 2 bath · 1,203 sq ft

    $457/sq ft · 90 days listed · $879/mo fee

    Active · Condo · MLS #73561782
    1 Seal Harbor Rd. #615, Winthrop, MA
    Listed by Kevin Chiles, Charlesgate Realty Group LLC

  • Unit 413: listing photo

    $529,999Cut $48K

    Unit 413, floor 4

    2 bed · 2 bath · 1,205 sq ft

    $440/sq ft · 84 days listed · $866/mo fee

    Active · Condo · MLS #73564816
    1 seal harbor rd #413, Winthrop, MA
    Listed by Living Coastal Group-Greater Boston & Northshore, Real Broker MA, LLC

  • Unit 812: listing photo

    $485,000Cut $34K

    Unit 812, floor 8

    1 bed · 1 bath · 974 sq ft

    $498/sq ft · 103 days listed · $740/mo fee

    Active · Condo · MLS #73556652
    1 Seal Harbor Rd #812, Winthrop, MA
    Listed by Peggie Gilbert, Coldwell Banker Peggy Carter Team

Under agreement2 units

  • Unit 601: listing photo

    $599,900

    Unit 601, floor 6

    1 bed · 1 bath · 1,005 sq ft

    $597/sq ft · 32 days listed · $797/mo fee

    Under agreement · Condo · MLS #73588722
    1 Seal Harbor Rd #601, Winthrop, MA
    Listed by Colleen Eddy, Return Realty Group, Inc.

  • Unit 210: listing photo

    $479,900Cut $20K

    Unit 210, floor 2

    1 bed · 1 bath · 947 sq ft

    $507/sq ft · 115 days listed · $660/mo fee

    Under agreement · Condo · MLS #73551484
    1 Seal Harbor #210, Winthrop, MA
    Listed by Rita Angelesco, LAER Realty Partners

For rent now1 unit

  • Unit 413: listing photo

    $3,100/mo

    Unit 413, floor 4

    2 bed · 2 bath · 1,200 sq ft

    37 days listed

    For rent · Condo rental · MLS #73586348
    1 Seal Harbor #413, Winthrop, MA
    Listed by Zachary Hall, Dependable Real Estate, Inc

Buy or rent here?

Typical sale price and monthly rent by size, past 12 months. “Rent as % of price” is a year's rent divided by the price: the higher it is, the more renting here costs compared with buying.

SizeSale priceMonthly rentRent as % of price
1 bedroom$550K (3)––
2 bedrooms$589K (3)$2,900 (2)5.9%

What soldPast 12 months, newest first

ClosedUnitSizePrice$/sq ftvs. first ask
Sep 15Unit 700MLS #73553054 · Lyv Realty2 bed, 1,414 sq ft$715,500$506−4.6%
Aug 26Unit 116MLS #73540416 · Century 21 Mario Real Estate2 bed, 1,241 sq ft$589,000$475−5.0%
Aug 20Unit 300MLS #73517090 · Coldwell Banker Realty - Boston1 bed, 994 sq ft$550,000$553−3.5%
Jun 23Unit 401MLS #73501828 · Coldwell Banker Peggy Carter Team1 bed, 1,005 sq ft$575,000$572+0.0%
May 15Unit 701MLS #73477376 · Coldwell Banker Peggy Carter Team1 bed, 1,005 sq ft$549,000$546+0.0%
Mar 2Unit 415MLS #73466980 · Realty One Group Nest2 bed, 1,203 sq ft$543,000$451−1.3%

Where it isWith nearby buildings we track

Questions people ask

How much do condos cost at 1 Seal Harbor Rd?
In the past 12 months, 6 condos sold at 1 Seal Harbor Rd (1 Seal Harbor Rd, Winthrop) for a typical $562,500, or $526 per square foot. Sales ranged from $543,000 to $715,500.
How fast do condos sell at 1 Seal Harbor Rd?
Units that sold in the past 12 months took a typical 30 days to get an accepted offer, and 33% sold for their first asking price or more. In Winthrop Highlands overall, it took 30 days.
What are the condo fees at 1 Seal Harbor Rd?
The typical monthly condo fee at 1 Seal Harbor Rd is $832, about $0.76 per square foot a month, based on the fees filed with its listings.
How many condos are for sale at 1 Seal Harbor Rd right now?
5 units are for sale, asking from $485,000 to $699,999.
When was 1 Seal Harbor Rd built, and how many units does it have?
1 Seal Harbor Rd was built in 1983 and has 127 units, with homes up to the 9th floor, according to its listings.

About these numbers

Every figure on this page comes from verified market data for 1 Seal Harbor Rd, Winthrop, refreshed November 8, 2026, and updates every morning. “Typical” means the median. Price per square foot uses the living area filed with each listing. Condo fees are monthly. Sales history in our data starts in late 2025.

Cite as: “1 Seal Harbor Rd building report,” Boston Real Estate Observer, https://bostonrealestateobserver.com/buildings/winthrop/1-seal-harbor-rd/ (data as of November 8, 2026).