99 Sumner St # 506, Boston MA 02128
Boston, MA 02128 • East Boston
$850,000
Est. $6,219/month
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About this home
Bright, well-appointed 1+ den opportunity with parking at The Mark on East Boston’s waterfront. Elegant & distinctive interior finishes throughout the building & home. Oversized windows flood the open living space with natural light & courtyard/water views. The kitchen features Silestone quartz counter tops, Bosch appliances & an island perfect for entertaining. The Primary bedroom has charming views of courtyard and water, and the versatile den is perfect for a home office/second bedroom. Enjoy ample closet space and storage solutions throughout including a deeded storage unit conveniently located on the same floor. The Mark is a full service building with amenities including: 24/7 concierge, fitness center with flex studio, harbor view resident terrace with grills and fire pits, golf simulator, conference rooms, entertainment suite, and pet spa. Modern community in a prime Eastie location — easy access to dining, transit and waterfront. A turnkey opportunity for seamless city living.
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Recently Sold Nearby
Property History
Property Timeline
Listed for Sale
Mar 23, 2026
$850,000
Original listing
Agent: Alexandria Lyons
Office: JD Advisors, Inc
| Date | Event | Price | Change | $/sqft | Details |
|---|---|---|---|---|---|
| 03/23/2026 | 🏠 Listed for Sale | $850,000 | - | - | Original listing |
Tax History
| Year | Taxes | Assessment |
|---|---|---|
| 2025 | $9,081 | $784,200 |
Financial Details
Annual Property Tax
$9,081
Tax Year 2025
HOA Fee
$964
Monthly
Assessed Value
$784,200
Facts & Features
1 Car Garage
Central AC
Home Facts
Type
Residential
Style
Condominium
Year Built
2020
Living Area
783 sq ft
Bedrooms
1
Full Baths
1
Total Rooms
5
Interior
Heating
Forced Air
Cooling
Central Air
Flooring
None
Appliances
None
Fireplace
None
Basement
N
Laundry
None
Features
None
Exterior
Construction
None
Architecture
None
Roof
None
Features
None
Pool
None
Spa
None
Fencing
None
Patio/Porch
None
Parking
Garage Spaces
1
Has Garage
Yes
Features
Attached, Under, Deeded, Off Street
Total Spaces
1
Utilities
Electric
None
Water
Public
Sewer
Public Sewer
Gas
None
Other
None
Financial
Annual Tax
$9,081
Assessed Value
$784,200
HOA & Community
HOA Fee
$964 Monthly
Fee Includes
Water, Sewer, Insurance, Maintenance Structure, Maintenance Grounds, Snow Removal, Reserve Funds
Amenities
Elevator(s), Fitness Center, Clubroom, Storage
Optional Fee Includes
None
Down Payment Resource
Eligible
MA Disclosures
Seller Disclosures
Window Treatments To Stay
Additional Details
Possession
None
Accepted Financing
None
Structure Type
["Mid-Rise"]
Unit/Building
506
Sq Ft Source
Public Record
Documents
Master Deed, Rules & Regs, Management Association Bylaws, Floor Plans (4)
County
Suffolk
Total market time (incl. prior listings)
129 days
Property Overview
Property Type
Condominium
Listing Type
For Sale
Year Built
2020
Bedrooms
1
Full Bathrooms
1
Living Area
783 sq ft
Total Rooms
5
Stories
1
Entry Level
5
Floor Layout
Interactive room guide
Floor Layout
Finished Area
783 sq ft above grade
Display Options
Room Markers
BABathroom (4)
BRBedroom (5)
DDining (1)
KKitchen (1)
LLiving (2)
OOffice (1)
Conceptual diagram based on MLS room data. It is not to scale and is not a substitute for architectural plans or on-site measurements.
Interior Features
Flooring:
Appliances:
Interior Features:
Windows:
Basement:
N
Laundry:
Security:
Concierge
Construction & Materials
Year Built:
2020
Structure Type:
Mid-Rise
Exterior Materials:
Roof:
Foundation:
Stories:
1
Heating, Cooling & Utilities
Heating:
Forced Air
Cooling:
Central Air
Hot Water:
Water Source:
Public
Sewer:
Public Sewer
Energy Features:
Exterior & Lot
Exterior Features:
Patio & Porch:
Fencing:
Other Structures:
Lot Features:
Road Surface:
Parking & Garage
Garage Spaces:
1
Garage Type:
Attached
Total Parking Spaces:
1
Parking Features:
Attached, Under, Deeded, Off Street
Special Features
Waterfront:
Yes
Waterfront Type:
Waterfront, Harbor
Community Amenities:
Public Transportation, Shopping, Park, Walk/Jog Trails, Medical Facility, Laundromat, Bike Path, Highway Access, House of Worship, Private School, Public School, T-Station
Nearby Schools
Elementary Schools
3 schools
East Boston Central Catholic School
0.3 mi
Grades PK-08
B+
Alighieri Dante Montessori School
0.3 mi
|
#5 of 12
|
Score: 45.3
Improved 124 spots from last year
-12.9 below state avg
109 students
Diverse
Rising School
Grades PK-06
Alighieri Montessori
0.3 mi
Middle Schools
1 school
Edwards Middle
1.4 mi
High Schools
3 schools
East Boston High
1.0 mi
C-
East Boston High School
1.0 mi
|
#305 of 346
|
Score: 37.3
Improved 31 spots from last year
-20.9 below state avg
1,252 students
Less Diverse
14 sports
• 584 athletes
Early College Program
Rising School
Grades 07-12
Charlestown High
1.2 mi
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Loan Amount
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After down payment
Total Interest
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Over life of loan
Total Cost
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Including down payment
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Down: $0
%
Monthly Payment Breakdown
Principal & Interest
$0
Property Tax
$757
Homeowners Insurance
$200
HOA Fee
$964/mo
PMI (if <20% down)
$0
Loan Summary
Total of 360 payments
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Total interest paid
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Rate Impact
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Current Rate
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Payment Over Time
Year 1
95% Interest
Year 15
50/50
Year 30
95% Principal
* Estimates only. Actual payments may vary. Consult with a lender for accurate figures.
Location
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Neighborhood
East Boston
99 Sumner St # 506, Boston MA 02128
Boston, MA 02128
Listing Information
Listing Agent
Alexandria Lyons
Listing Office
JD Advisors, Inc
Office Phone
508-277-7707
Agent MLS ID
CN215803
Office MLS ID
AN8458
Listing Data Updated
Jul 30, 2026 3:05 AM EDT
Listing information is deemed reliable but not guaranteed. Data provided by MLS Property Information Network, Inc. All information should be independently verified.
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