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21 Tremont St # A, Boston MA 02129

Boston, MA 02129 • Charlestown
$699,000
Est. $4,335/month
1
Beds
1
Baths
681
Sq Ft
$1,026
Price/Sq Ft
1860
Year Built
Condominium
Type
5 hours 58 minutes
Time on Market
Active Open House Listed Apr 9, 2026 • MLS# 73499016 Copied!

About this home

Located just off Monument Square, this oversized 1 Bed/1 Bath home boasts a coveted corner exposure and exceptional natural light throughout. The thoughtfully renovated kitchen features granite countertops, stainless appliances with gas cooking and is open to an elegant dining room with exposed brick wall, perfect for entertaining. The spacious living room with beautiful crown moldings, ceiling medallion and oversized windows overlooks the shared garden, while french doors lead to the spacious bedroom with sunny corner exposure and double closets. The recently renovated bathroom offers a walk-in shower and sleek floating vanity. Additional highlights include high ceilings, Brazilian cherry hardwood floors throughout, on-site laundry, and extra basement storage with exterior access. A fantastic opportunity to own a beautifully appointed home in a prime location.

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Property Overview

Property Type
Condominium
Listing Type
For Sale
Year Built
1860
Bedrooms
1
Full Bathrooms
1
Living Area
681 sq ft
Total Rooms
4
Stories
1
Entry Level
1

Open House Schedule

11
Apr
Saturday, April 11
11:00 AM - 12:00 PM EDT
12
Apr
Sunday, April 12
11:00 AM - 12:00 PM EDT

Facts & Features

Home Facts

Type Residential
Style Condominium
Year Built 1860
Living Area 681 sq ft
Bedrooms 1
Full Baths 1
Total Rooms 4

Interior

Heating Baseboard
Cooling Window Unit(s)
Flooring Hardwood
Appliances Range, Dishwasher, Refrigerator, Freezer
Fireplace None
Basement Y
Laundry In Building
Features None

Exterior

Construction Frame
Architecture None
Roof Shingle
Features Patio, Fenced Yard, Garden
Pool None
Spa None
Fencing Fenced
Patio/Porch Patio

Parking

Features On Street

Utilities

Electric None
Water Public
Sewer Public Sewer
Gas None
Other None

Financial

Annual Tax $2,941
Assessed Value $586,900

Interior Features

Flooring: Hardwood
Appliances: Range, Dishwasher, Refrigerator, Freezer
Interior Features:
Windows:
Basement: Y
Laundry: In Building
Security:

Construction & Materials

Year Built: 1860
Effective Year (Renovated): 1984
Structure Type: Detached
Exterior Materials: Frame
Roof: Shingle
Foundation:
Stories: 1

Heating, Cooling & Utilities

Heating: Baseboard
Cooling: Window Unit(s)
Hot Water:
Water Source: Public
Sewer: Public Sewer
Energy Features:

Exterior & Lot

Exterior Features: Patio, Fenced Yard, Garden
Patio & Porch: Patio
Fencing: Fenced
Other Structures:
Lot Features:
Road Surface:

Parking & Garage

Parking Features: On Street

Location

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Neighborhood

Charlestown

21 Tremont St # A, Boston MA 02129

Boston, MA 02129

Walkability

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Nearby Schools

School District
Boston School District local
C-
🎓 Where Graduates Go Class of 2021
52% attend college
38% 4-Year 14% 2-Year 7% Out of State 7% Working
⚠ School Safety 2024-25
3.7% Above Average
3.2% Suspensions 0.3% In-School 0.5% Emergency
↓ 1.8% below state avg
E

Elementary Schools

3 schools
C
Harvard-Kent Elementary School
< 0.1 mi | #589 of 824 | Score: 41.5
Dropped 181 spots from last year
-16.7 below state avg
334 students Very Diverse
Diverse Student Body
Grades PK-06
Harvard/Kent Elem
< 0.1 mi
A-
Warren-Prescott K-8 School
0.3 mi | #85 of 352 | Score: 51.3
Improved 4 spots from last year
-7 below state avg
507 students Diverse
Grades PK-08
M

Middle Schools

1 school
Edwards Middle
0.5 mi
H

High Schools

3 schools
Charlestown High
0.3 mi
D
Charlestown High School
0.3 mi | #322 of 346 | Score: 31.0
Improved 49 spots from last year
-27.2 below state avg
754 students Diverse
11 sports • 488 athletes
Early College Program Rising School
Grades 07-12
Seaport Academy School
1.1 mi
Grades 07-12
Learn about these ratings
School data provided by BMN Schools

Monthly Payment Calculator

Monthly Payment
$0
Principal, interest, taxes & insurance
Loan Amount
$0
After down payment
Total Interest
$0
Over life of loan
Total Cost
$0
Including down payment
%
Down: $0
%

Monthly Payment Breakdown

Principal & Interest $0
Property Tax $245
Homeowners Insurance $200
HOA Fee $356/mo
PMI (if <20% down) $0

Loan Summary

Total of 360 payments $0
Total principal paid $0
Total interest paid $0

Rate Impact

-0.5% Rate
$0/mo
Save $0/mo
Current Rate
$0/mo
+0.5% Rate
$0/mo
Cost $0/mo

Payment Over Time

Interest
Principal
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.

Property History

Property Timeline

🏠
Listed for Sale
Apr 9, 2026
$699,000
Original listing
Agent: Phillip MacArthur Office: Windrift Real Estate, LLC

Price & Status History

Date Event Price Change
Apr 9, 2026 New Listing Added $699,000 —

Market Statistics

Time on Market
5 hours 58 minutes
Price per Sq Ft
$1,026

Tax History

Year Taxes Assessment
2026 $2,941 $586,900

Financial Details

Annual Property Tax
$2,941
Tax Year 2026
HOA Fee
$356
Monthly
Assessed Value
$586,900

Listing Information

Listing Agent Phillip MacArthur
Listing Office Windrift Real Estate, LLC
Agent MLS ID CT009553
Office MLS ID AN8933
Listing Data Updated Apr 9, 2026 12:43 PM 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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