Seal Harbor Condominiums
3 Seal Harbor Rd, Winthrop, MA 02152
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Independent brokerage page. BMN Boston Powered by SERHANT compiles public MLS listing and sales data for Seal Harbor Condominiums; it is not the building's management company, leasing office, or HOA. Contact Seal Harbor Condominiums directly for management, rental, or maintenance questions.
About Seal Harbor Condominiums
Seal Harbor Condominiums is a residential building built in 1983, located at 3 Seal Harbor Rd in Winthrop, MA 02152. The building features 1 to 3-bedroom residences ranging from 823 to 2,236 square feet , with prices from $480K to $1.2M . There are currently 7 units available for sale. 19 units have sold in the last two years at an average price of $642K .
Monthly HOA fees at Seal Harbor Condominiums range from $588 to $1,798 per month and commonly include Water, Sewer, Insurance . Parking is typically under, off street, common, averaging 1.6 spaces per unit.
Figures summarize MLS listing records. Repeat listings can refer to the same residence; records tracked are not the building's total number of units.
Last updated: 2026-10-08
7 Units For Sale at Seal Harbor Condominiums
Unit Types at Seal Harbor Condominiums
| Unit Type | Beds | Baths | Sq Ft | Price Range | Available |
|---|---|---|---|---|---|
| 1 Bedroom | 1 | 1 | 823 - 1,005 sqft | $185K - $630K | 3 for sale |
| 1 Bedroom | 1 | 2 | 1,033 - 1,350 sqft | $278K - $639K | 3 for sale |
| 2 Bedroom | 2 | 2 | 1,124 - 1,641 sqft | $214K - $725K | 3 for sale |
| 2 Bedroom | 2 | 3 | 1,634 - 1,777 sqft | $403K - $929K | 3 for sale |
| 3 Bedroom | 3 | 2 | 1,666 sqft | $435K - $465K | 1 for sale |
| 3 Bedroom | 3 | 3 | 1,674 - 2,236 sqft | $455K - $1.2M | 1 for sale |
1 Unit Under Agreement
Recently Sold at Seal Harbor Condominiums
| Address | Beds/Baths | Sq Ft | List Price | Sold Price | Change | Sold Date |
|---|---|---|---|---|---|---|
| 1 Seal Harbor Road # 116, Winthrop MA 02152 | 2bd / 2ba | 1,241 | $620K | $589K | -5% | Aug 25, 2026 |
| 1 Seal Harbor Rd # 401, Winthrop MA 02152 | 1bd / 1ba | 1,005 | $575K | $575K | +0% | Jun 22, 2026 |
| 3 Seal Harbor Rd # 133, Winthrop MA 02152 | 1bd / 1ba | 910 | $650K | $630K | -3.1% | May 18, 2026 |
| 1 Seal Harbor Rd # 701, Winthrop MA 02152 | 1bd / 1ba | 1,005 | $549K | $549K | +0% | May 14, 2026 |
| 3 Seal Harbor # 344, Winthrop MA 02152 | 2bd / 2ba | 1,302 | $649K | $632K | -2.6% | May 6, 2026 |
| 3 Seal Harbor Rd # 634, Winthrop MA 02152 | 1bd / 1ba | 840 | $525K | $515K | -1.9% | Apr 2, 2026 |
| 3 Seal Harbor Rd # 137, Winthrop MA 02152 | 2bd / 2ba | 1,327 | $686K | $670K | -2.3% | Mar 1, 2026 |
| 3 Seal Harbor Rd # 736, Winthrop MA 02152 | 3bd / 2.5ba | 1,674 | $900K | $850K | -5.6% | Dec 7, 2025 |
| 1 Seal Harbor Rd # 215, Winthrop MA 02152 | 2bd / 2ba | 1,203 | $599K | $550K | -8.2% | Oct 27, 2025 |
| One Seal Harbor Rd # 604, Winthrop MA 02152 | 2bd / 2ba | 1,124 | $649K | $650K | +0.2% | Sep 29, 2025 |
| 3 Seal Harbor Road # 744, Winthrop MA 02152 | 2bd / 2ba | 1,302 | $796K | $725K | -8.9% | Aug 6, 2025 |
| 3 Seal Harbor # 242, Winthrop MA 02152 | 2bd / 2ba | 1,302 | $668K | $660K | -1.2% | Jul 24, 2025 |
| 3 Seal Harbor, Winthrop MA 02152 | 2bd / 2.5ba | 1,777 | $929K | $929K | +0% | Jul 23, 2025 |
| 1 Seal Harbor Rd # 104, Winthrop MA 02152 | 2bd / 2ba | 1,230 | $619K | $595K | -3.9% | Apr 27, 2025 |
| 3 Seal Harbor # 846, Winthrop MA 02152 | 1bd / 1.5ba | 1,106 | $575K | $550K | -4.3% | Mar 9, 2025 |
| 3 Seal Harbor # 635, Winthrop MA 02152 | 2bd / 2ba | 1,306 | $600K | $590K | -1.7% | Feb 18, 2025 |
| 3 Seal Harbor # 733, Winthrop MA 02152 | 2bd / 2ba | 1,286 | $675K | $675K | +0% | Feb 3, 2025 |
| 1 Seal Harbor Rd # 514, Winthrop MA 02152 | 2bd / 2ba | 1,327 | $599K | $560K | -6.5% | Jan 30, 2025 |
| 3 Seal Harbor # 644, Winthrop MA 02152 | 2bd / 2ba | 1,302 | $689K | $711K | +3.2% | Dec 18, 2024 |
Frequently Asked Questions About Seal Harbor Condominiums
Is BMN Boston Powered by SERHANT the management company or leasing office for Seal Harbor Condominiums?
No. BMN Boston Powered by SERHANT is an independent real estate brokerage. We compile public MLS listing and recent-sales data for Seal Harbor Condominiums to help buyers and sellers make informed decisions. We do not manage the building, lease units on behalf of the owner, or handle HOA matters. For management, leasing, or maintenance inquiries, please contact Seal Harbor Condominiums directly.
How many units are for sale at Seal Harbor Condominiums?
There are currently 7 condos for sale at Seal Harbor Condominiums in Winthrop, MA. Prices range from $480K - $1.2M.
What is the price range at Seal Harbor Condominiums?
Prices at Seal Harbor Condominiums range from $480K to $1.2M based on recent listings and sales. Prices vary by unit size, floor, and finishes.
What are the unit sizes at Seal Harbor Condominiums?
Units at Seal Harbor Condominiums range from 823 to 2,236 square feet, with 1 to 3 bedroom configurations.
How much do condos sell for at Seal Harbor Condominiums?
19 units have sold at Seal Harbor Condominiums in the last two years at an average price of $642K. The average time on market was 76 days.
When was Seal Harbor Condominiums built?
Seal Harbor Condominiums was built in 1983 and is located at 3 Seal Harbor Rd in Winthrop, MA 02152.
What are the HOA fees at Seal Harbor Condominiums?
Monthly HOA fees at Seal Harbor Condominiums $588 to $1,798 per month. Based on 27 listings with HOA data on file. Fees commonly include Water, Sewer, Insurance. Actual fees vary by unit; confirm with the listing agent.
Is parking available at Seal Harbor Condominiums?
Parking at Seal Harbor Condominiums is typically described as under, off street, common. On average, listings include 1.6 parking spaces. Specific arrangements (deeded, assigned, garage vs. surface) vary by unit.
More Buildings & Communities in Winthrop, MA
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