Date
Details
Price
Change
Source
6/18/2026
Listed
$1,199,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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1/40
$1,199,000
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Property Description
Experience exceptional waterfront living at The Mark. This residence features two bedrooms, a bonus room/versatile den, two full baths, and a private balcony overlooking the Harbor. The open-concept interior is anchored by a chef's kitchen boasting Bosch appliances and quartz countertops, all flowing seamlessly across warm hardwood floors. Generous bedrooms and closet space, while the primary bedroom features an ensuite bathroom. This home comes complete with in-unit laundry, two garage parking spaces and a private storage unit. Life at The Mark offers unparalleled full-service luxury. Residents enjoy a 24-hour concierge, fitness center, fireplace lounge, billiards room, library, & a pet spa. Step outside to the private balcony or explore the vibrant local scene. With the ferry, Blue Line, and Logan Airport just moments away, downtown Boston & beyond are within easy reach. This is a rare opportunity to enjoy a dynamic city lifestyle in a in a premier waterfront setting.
Full Property Details
Full Property Details for 99 Sumner #421
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General
- Price: $1,199,000
- HOA FEE: $1,428/month
- Taxes: $14,608 (2026)
- Status: Active
- Type: Condo
- MLS ID: 73538123
- Updated: 6/22/2026
- Added to Site: 9 day(s) ago
Rooms
Bathrooms
- Total Bathrooms: 2
- Full Bathrooms: 2
Bedrooms
- Total Bedrooms: 2
Parking
- Garage: Yes
- Garage Spaces: 2
- Parking Features: Under, Garage Door Opener
Location
- County: Suffolk
Structural Information
- Basement: Yes
- Stories/Levels: 1
- Square Feet: 1,195
- Year Built: 2021
Financial Considerations
- Association Fee: $1,428
- Tax Amount: $14,608.1
- Tax Year: 2026
Disclosures and Reports
- Disclosures/Rstr.: The two garage parking spaces (#24 and #35) are $75/month each, for a total additional $150 per month. Price includes additional storage space #411 on same floor as the unit itself.
- Property ID: 1054031285200268
Listed by Compass, Caroline Morson
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Listing agent
— 99 Sumner #421 —
Caroline Morson
Compass
NMLS#: 1598647Get Pre-Approved Today
Price & Sales History for 99 Sumner #421
Tax History
Tax History for 99 Sumner #421
Year
Property Taxes
Change
Tax Assessment
Change
2025
$13,384
16%
$1,155,800
9%
2024
$11,550
4%
$1,059,600
2%
2023
$11,151
—
$1,038,300
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 99 Sumner #421
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- Single Family
- Active
- Updated 2 days ago
- 4Beds
- 2Total Baths
- 1,900Sq. Ft.
- Condo
- Active
- Updated 7 hours ago
- 2Beds
- 2Total Baths
- 1,254Sq. Ft.
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- Condo
- Active
- Updated 7 hours ago
- 2Beds
- 2Total Baths
- 905Sq. Ft.
- Multi-Family
- Active
- Updated 22 hours ago
- 3Units
- 8Total Beds
- 0.05Acres
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99 Sumner #421, Boston, MA 02128 (MLS# 73538123) is a Condo property with 2 bedrooms and 2 full bathrooms. 99 Sumner #421 is currently listed for $1,199,000 and was received on June 18, 2026. Want to learn more about 99 Sumner #421? Do you have questions about finding other Condo real estate for sale in Boston? You can browse all Boston real estate or contact a Coldwell Banker agent to request more information.