Step into a life of luxury in this one of a kind terrace unit at Echelon. Spend your evenings grilling on your private terrace—an urban oasis perfect for entertaining and relaxation. Inside, the open kitchen features custom white Italian cabinetry, quartz countertops, and top-of-the-line Thermador appliances, setting the stage for culinary adventures. White oak hardwood floors throughout, a spa-like marble bath, and an in-unit Bosch washer and dryer add a touch of convenience. Residents of Echelon enjoy exclusive access to over 50,000SF of amenities. Spend your weekends by one of the two outdoor pools followed by a rejuvenating soak in the hot tub. Stay active with state-of-the-art fitness facilities, including an indoor sports court, golf simulator, and yoga studio. In the evening, unwind in the Sky Lounge with spectacular views overlooking the Seaport or relax by one of the outdoor fire pits. One valet parking space is included. Welcome to a new standard of urban living at Echelon.
Sold for $1,230,000
$1,230,000
133 Seaport Blvd Unit 521, Boston, MA 02210
1beds
627sqft
Condominium
Built in 2020
-- sqft lot
$1,253,600 Zestimate®
$1,962/sqft
$4,525 Estimated rent
Home value
$1,253,600
Estimated sales range
Not available
$4,525/mo
Zestimate® history
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$8,635/mo
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Est. payment
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List your homeWhat's special
Hot tubOpen kitchenTwo outdoor poolsWhite oak hardwood floorsSpa-like marble bathPrivate terraceQuartz countertops
Zillow last checked:
Listing updated:
Listed by:
Shannon Lavin 774-454-6547,
Compass 617-206-3333
Bought with:
Shannon Lavin
Compass
Source: MLS PIN,MLS#: 73286081
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 1
- Bathrooms: 1
- Full bathrooms: 1
Heating
- Forced Air, Natural Gas
Cooling
- Central Air
Appliances
- Laundry: In Unit
Features
- Basement: None
- Has fireplace: No
Interior area
- Total structure area: 627
- Total interior livable area: 627 sqft
Property
Parking
- Total spaces: 1
- Parking features: Garage
- Garage spaces: 1
Features
- Pool features: Association, In Ground, Indoor, Heated
- On waterfront: Yes
- Waterfront features: Waterfront
Details
- Parcel number: 5135829
- Zoning: RES
Construction
Type & style
- Home type: Condo
- Property subtype: Condominium
- Attached to another structure: Yes
Condition
- Year built: 2020
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
Community & HOA
Community
- Features: Public Transportation, Shopping, Tennis Court(s), Park, Walk/Jog Trails, Medical Facility, Highway Access, Marina, T-Station
- Security: Doorman, Concierge
HOA
- Amenities included: Hot Water, Pool, Elevator(s), Fitness Center, Clubroom, Parking
- Services included: Heat, Gas, Water, Sewer, Insurance, Security, Maintenance Structure, Maintenance Grounds, Snow Removal, Trash
- HOA fee: $1,270 monthly
Location
- Region: Boston
Financial & listing details
- Price per square foot: $1,962/sqft
- Tax assessed value: $1,130,000
- Annual tax amount: $12,429
- Date on market: 9/16/2025
Price history
| Date | Event | Price |
|---|---|---|
| 2/14/2025 | Sold | $1,230,000-5%$1,962/sqft |
Source: MLS PIN #73286081 Report a problem | ||
| 1/7/2025 | Contingent | $1,295,000$2,065/sqft |
Source: MLS PIN #73286081 Report a problem | ||
| 9/5/2024 | Listed for sale | $1,295,000+10.2%$2,065/sqft |
Source: MLS PIN #73286081 Report a problem | ||
| 7/11/2024 | Listing removed | -- |
Source: Zillow Rentals Report a problem | ||
| 7/9/2024 | Listed for rent | $6,000$10/sqft |
Source: Zillow Rentals Report a problem | ||
| 7/9/2024 | Listing removed | -- |
Source: MLS PIN #73252522 Report a problem | ||
| 6/11/2024 | Listed for rent | $6,000$10/sqft |
Source: Zillow Rentals Report a problem | ||
| 12/18/2019 | Sold | $1,174,900$1,874/sqft |
Source: LINK #212556 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $13,964 +13.4% | $1,205,900 +6.7% |
| 2024 | $12,317 -2.1% | $1,130,000 -3.5% |
| 2023 | $12,581 +0.7% | $1,171,400 +2% |
| 2022 | $12,499 +15.1% | $1,148,800 +12.9% |
| 2021 | $10,856 | $1,017,400 |
Find assessor info on the county website
Neighborhood: South Boston
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Nearby schools
GreatSchools rating
- 3/10James F. Condon SchoolGrades: PK-8Distance: 1 mi
- 3/10Quincy Upper SchoolGrades: 6-12Distance: 1.1 mi
- 8/10Josiah Quincy Elementary SchoolGrades: PK-5Distance: 1.1 mi
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Estimated market value
$1,253,600
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Estimated market value
$1,253,600
- Massachusetts
- Suffolk County
- Boston
- 02210
- South Boston
- 133 Seaport Blvd Unit 521
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